0155j1

Part Number 190155-01 Rev. J (01/08)

Bently Nevada Asset Condition Monitoring

Operation Manual

1900/55 Fan Monitor

1900/55 Fan Monitor Operation Manual

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Copyright 1995 Bently Nevada LLC

All rights reserved.

The information contained in this document is subject to change without notice.

The following are trademarks of General Electric Company in the United States and other countries:

Bently Nevada, Sealtite, Velomitor

Contact Information

The following contact information is provided for those times when you cannot contact your local representative:

Mailing Address 1631 Bently Parkway South

Minden, Nevada USA 89423

USA

Telephone 1.775.782.3611

1.800.227.5514

Fax 1.775.215.2873

Internet www.ge-energy.com/bently

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Additional Information

Product Disposal Statement

Customers and third parties, who are not member states of the European Union, who are in control of the product at the end of its life or at the end of its use, are solely responsible for the proper disposal of the product. No person, firm, corporation, association or agency that is in control of product shall dispose of it in a manner that is in violation of any applicable federal, state, local or international law. Bently Nevada LLC is not responsible for the disposal of the product at the end of its life or at the end of its use.

Label Symbols

Bently Nevada, LLC has attempted to identify areas of risk created by improper installation and/or operation of this product. Read all instructions before installing or operating this product. Pay particular attention to those areas designated by the following label symbols.

This symbol denotes electrical ground when making power connections to the device.

This symbol is an indication that high voltages may be present.


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Contents

1. Monitor Overview...........................................................................................1

1.1. Front Panel Description .................................................................................................................. 3

1.2. Rear Panel Description.................................................................................................................... 6

1.3. Display.................................................................................................................................................... 7

2. Installation.......................................................................................................9

2.1 Weatherproof Enclosure Installation .....................................................................................10

2.2 Mounting Frame Installation......................................................................................................12

2.3 Remote Buffered Output Connections ..................................................................................14

2.4 Velomitor Transducer Connections.........................................................................................16

2.5 Relay Connections ..........................................................................................................................18

2.6 Power Connections ........................................................................................................................20

2.7 Powering Up the Monitor.............................................................................................................21

3. Program Mode...............................................................................................23

Relay Settings..............................................................................................................................................23

3.1. Entering PROGRAM Mode............................................................................................................24

3.2. Language............................................................................................................................................24

3.3. Point ID.................................................................................................................................................26

3.4. Setpoints..............................................................................................................................................28

3.5. Relay Settings....................................................................................................................................30

3.6. Danger Relay Bypass.....................................................................................................................33

3.7. Channel Activity ...............................................................................................................................35

3.8. Units ......................................................................................................................................................36

3.9. LCD Scan Time..................................................................................................................................37

3.10. Self-test................................................................................................................................................38

3.11. To exit PROGRAM Mode................................................................................................................39

3.12. Viewing and Recording Programmed Values.....................................................................39

4. Normal Mode.................................................................................................41

4.1. Velocity Display ................................................................................................................................41

4.2. Buttons.................................................................................................................................................43

4.3. OK...........................................................................................................................................................44

4.4. Alert .......................................................................................................................................................45

4.5. Danger..................................................................................................................................................46

4.6. Bypass ..................................................................................................................................................47

4.7. Connectors and Contacts............................................................................................................47

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5. Maintenance and Troubleshooting .......................................................... 49

5.1 Calibration Check ............................................................................................................................49

5.2 Troubleshooting...............................................................................................................................50

6. Specifications ............................................................................................... 57

6.1 Environmental...................................................................................................................................57

6.2 Electrical ..............................................................................................................................................58

6.3 Relays ...................................................................................................................................................59

6.4 Displays................................................................................................................................................60

6.5 Physical ................................................................................................................................................60

6.6 Ordering Information.....................................................................................................................60

7. Accessories ................................................................................................... 61

7.1 Velomitor CT Transducer .............................................................................................................61

7.1.1 Option Descriptions...................................................................................................................61

7.2 Velomitor Transducer....................................................................................................................62


7.3 Velomitor XA Transducer .............................................................................................................62


7.4 Weatherproof Enclosure..............................................................................................................63

7.5 Bulk Cable ...........................................................................................................................................63

7.6 Conduit and Cable Fittings..........................................................................................................63

7.7 Fuses .....................................................................................................................................................64

7.8 1900/55 Fan Monitor Manual ....................................................................................................64

7.9 Optional 4 to 20 mA Communication Card .........................................................................64

7.10 Optional TM2000 Communication Card ...............................................................................64

Section 1 - Monitor Overview

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1. Monitor Overview The 1900/55 Fan Monitor is a four-channel monitor intended for low frequency vibration monitoring on fan gear boxes. Although the monitor accepts input from any Velomitor transducer, the 190501 VelomitorCT transducer must be used for low frequency applications. This transducer will give you a response from 1.5 to 1000 Hz 3 dB which will give the needed response for monitoring fan speeds of 90 RPM or greater.

All programmable options of the monitor can be set through the front panel controls without using switches or jumpers. The programmable options include relay time delays, latching or nonlatching relays, de-energized or energized relays, danger relay bypass, LCD scan time, measurement units, and point ID.

The monitor can be ordered with a communication card or one can be added to the monitor in the future. A communication card allows the monitor to send current vibration levels to a plant computer or to some other system. This vibration information can be trended so that changes in vibration over time can be analyzed.

Application Alert

The 1900/55 should NOT be used for monitoring Reciprocating Compressors. For machine protection parameters measured with Velomitor sensors a sudden mechanical impact can over-range the sensor output. The monitor is designed with Timed OK Channel Defeat. When an over-range signal exceeds the OK Limits the monitor may not annunciate an alarm. This may result in a missed alarm and temporary loss of machine protection.

On Reciprocating Compressors mechanical impacts will occur. The 1900/55 Monitor doesnt have an option to disable Timed OK Channel Defeat and should not be used for monitoring in this application.


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1.1. Front Panel Description

This section describes the controls and features on the front panel of the monitor. Refer to the front panel drawing on the preceding page.

1 LCD Display A 2 line by 16 character dot matrix display to show vibration information in normal mode and configuration settings in program mode.

2 Status Lights Indicates the status of all four channels.

Light

Meaning

OK

All monitor channels and transducers are operating correctly

Alert

The alert setpoint of one or more channels has been exceeded

Danger

The danger setpoint of one or more channels has been exceeded

Bypass

One or more channel is bypassed. When flashing, the monitor is in program mode


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3 Pushbuttons Used to configure the monitor in program mode and control the display in normal mode.

Mode

Pushbutton

Normal

Program

Menu

Display current configuration settings in Normal Mode Menu Display.

Set configuration settings

Stop/Resume

Stop or resume the scan function

Not used

Up/Left and

Down/Right

Select a channel for display

Change program options or with Shift button move cursor in Point ID menu

Select

Not used

Select a program option

Reset/Shift

Reset latched relays and lights

Not used

4 Mode Switch Change the operating mode to normal or program

5 Buffered Output Access the transducer signal from the front panel for diagnostic purposes. This connector is multiplexed so that the channel shown on

the display is available on this connector.

6 Channel Settings A region of the front panel label that can be written on with a grease pencil or a transparency pen to record the point ID and setpoints for each channel.


5

1

4

2

3

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1.2. Rear Panel Description This section describes the features on the rear panel of the monitor. Refer to the rear panel drawing on the preceding page.

1 Relay Terminals Connect cables to the relays and relay bypass terminals. The monitor has an OK relay, an Alert relay that is common to all four channels, four

independent Danger relays, and two terminals for relay bypass. Relay bypass is used to hold the alert and danger relays in their current state.

2 Power Terminals Connect the power source into the monitor.

3 Fuse Holder The monitor is fuse protected with a 250 V 200 mA fuse for 120 VAC power or a 250 V 100 mA fuse for 240 VAC power. The fuse is accessible through the

side of the monitor by unscrewing the fuse holder cap.

4 Communication The monitor can be used with various communication card

Card options. Communication cards allow you to send vibration information to

a plant computer or another computer to trend or analyze vibration data.

5 Transducer Connect the four Velomitor transducers and the remote

Terminals reset to the monitor. The remote reset connections allow a momentary closed switch to be wired to the monitor so that it can be reset from a remote location without opening the weatherproof enclosure to get to the reset button.

6 Remote Buffered Connect diagnostic and portable instrumentation to the

Output Terminals transducer signal.


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1.3. Display This section describes the regions on the LCD display in normal mode.

(For LCD indicators: = On, = Off, |||| = Flashing.)

1 Channel Number The first 3 characters indicate the channel number.

2 Point ID A 12 character field to identify the transducer location.

3 Vibration The current level of vibration for the channel shown.

4 Units The display can show the vibration in metric or English units.

5 OK Indicators Shows the status for the channel being displayed.

OK Indicator

Meaning

The channel and transducer are operating correctly.

A problem exists with the monitor channel or its transducer wiring.

||||

The channel is now OK, but was previously NOT OK .


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6 Alert Indicator Indicates if the channel is in Alert.

Alert Indicator

Meaning

The vibration for this channel has exceeded the alert setpoint.

The vibration for this channel is less than the alert setpoint.

||||

Vibration exceeded the alert setpoint, but is now below it.

7 Danger Indicator Indicates if the channel is in Danger.

Danger Indicator

Meaning

The vibration for this channel has exceeded the danger setpoint.

The vibration for this channel is less than the danger setpoint.

||||

Vibration exceeded the danger setpoint, but is now below it.

8 Bypass Indicator Indicates if the channel is in Bypass.

Bypass Indicator

Meaning

The channel is bypassed.

The channel is operating normally.

The channel is bypassed by the user or because the channel is currently NOT OK. Bypassing the channel inhibits the relays from changing state if the vibration level exceeds either setpoint.

Section 2 - Installation

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2. Installation The 1900/55 Monitor is designed for easy installation. The terminal strips for the relays, transducers, and remote buffered outputs are removable to make connecting the cabling easier. The monitor has many mounting options. It can be mounted in a JIC standard 14" x 12" Type 4X enclosure, into a panel or bulkhead, or in its mounting frame outside of a weatherproof enclosure. When mounted in a weatherproof enclosure, the front panel hinges open to allow access to the connections and to the communication card slot on the back of the monitor.

CAUTION

Wiring and servicing must be performed by qualified

personnel.

Conduit entry

valid on both

sides and

both ends


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STEPS 3 & 4

2.1 Weatherproof Enclosure Installation

Bently Nevada offers a JIC standard 14" x 12" (0.39 m x 0.36 m) Type 4X nonmetallic weatherproof enclosure (part number 190101-01) that has been designed specifically for the 1900/55 Fan Monitor. This housing is designed to make the monitor tool-accessable" only. When mounting the monitor outdoors, a weatherproof enclosure is required. When mounting the monitor indoors, use this enclosure if you must protect the monitor or limit access to unauthorized users.

Step 1 Find a suitable location for mounting the weatherproof enclosure.

Step 2 Punch conduit holes in the weatherproof enclosure. Pay particular attention to where the conduit holes must be located (see figure on preceding page). Conduit holes in the housing must not exceed the size needed for a standard 1 inch conduit hub.


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Step 3 Mount the enclosure at your chosen location.

Step 4 Install conduit and connect conduit with conduit hubs to the weatherproof enclosure.

Step 5 Pull all the needed cables for your installation through the conduit into the housing.

STEP 1


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STEP 2

2.2 Mounting Frame Installation

The mounting frame mounts directly in the weatherproof enclosure and its mounting hole pattern meets the JIC standard footprint for weatherproof enclosures. The mounting frame allows the front panel of the monitor to hinge open for easy access to the terminal strips and to the communication card on the rear panel.

Step 1 Place mounting frame in the weatherproof enclosure and mount it with four 10-32 screws.

Step 2 Screw front panel of monitor onto mounting frame hinges. At this time do not screw monitor front panel shut.


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STEP 1 STEP 2

STEP 3 STEP 4


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2.3 Remote Buffered Output Connections

The remote buffered output terminal strip lets you connect to the analog transducer signal for each channel. This terminal strip can either be used for short term connections when doing machinery diagnostics or for permanent connections with the cable routed to another location. Sending the buffered outputs to another location may be preferable in instances where access to the signal is desired but the monitor is mounted in an area that is not easily accessible.

Step 1 Strip the insulation from the conductors for the remote buffered output signals.

Step 2 Pull the remote buffered output terminal strip from the monitor.

Step 3 Connect the wires for the remote buffered output into the terminal strip. The voltage range at these connections is 0 to 20 volts. The wiring should be specified to handle these voltages. Also, the total wiring capacitance should not exceed 0.08 F for each output.

Step 4 Insert the terminal strip in the remote buffered output connector of the monitor.

STEP 1 STEP 2


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STEP 3 STEP 4


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2.4 Velomitor Transducer Connections

The Velomitor transducers connect to the monitor through a removable terminal strip. For measurements from 1.5 to 1000 Hz 3 dB use a 190501 Velomitor CT transducer. For vibration measurements from 4.5 to 3400 Hz 3 dB use the 330500 Velomitor transducer or the 330525 Velomitor XA transducer.

Step 1 Strip the outer insulation jacket off the transducer cable. Pull the shield back and twist into shield conductor or attach with solder a small length of wire to be used as a shield conductor. Strip the inner conductor insulation from the inner conductors.

Step 2 Pull the Velomitor transducer terminal strip from the monitor.

Step 3 Connect the wires for the Velomitor transducers into the terminal strip as shown in the figure. Connection A refers to pin A of the transducer. Connection B refers to pin B of the transducer. Connect the shield conductor to the shield terminal on the terminal strip. The voltage range at these connections is 0 to 20 volts. The wiring should be specified to handle these voltages.

Step 4 Insert the terminal strip in the Velomitor transducer connector of the monitor.


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2.5 STEP 1 2.5 STEP 2

2.5 STEP 3 2.5 STEP 4


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2.5 Relay Connections

The relay terminals let you connect six relays to shutdown circuitry or to alarm annunciators such as a light. The six relays consist of an OK relay, a single alert relay that is common to all four channels, and four independent danger relays for each channel. Each relay has normally open and normally closed contacts, and they can each be configured as latching or nonlatching relays. All the relays, except the OK relay, can be configured as normally de-energized or normally energized (see the table below for information on relay behavior for normally energized and de-energized relays). The OK relay is always normally energized so that a loss of power will cause the relay to change states to indicate a loss of protection. Refer to the Program Mode chapter for more information on configuring the relays.

Alarm State

Normally Energized

Normally De-energized

No Power

(shelf state)

With Power

No alarm

With Power

In alarm

The relays must be used in an application for which they were designed. The load connected to the relays must not exceed the following specifications.

Minimum contact load: 100 mA at 12 Vac or 12 Vdc

Maximum contact load: 8 A 300 Vac or 28 Vdc 224 W or 2000 VA


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CAUTION When the BASEEFA option is ordered the relays are limited to 5 A and 30 VAC or 30

VDC.

The relay terminal strip also has connections for relay bypass on terminals 1 and 2. Use this terminal strip to connect a switch across terminals 1 and 2 so that a relay bypass signal can be sent to the monitor. This switch will inhibit relay operation as long as it is held closed. Common uses for relay bypass are:

to inhibit the relays when the machinery being monitored has high vibration, or when speed changes last longer than the maximum relay time delay of 15 seconds.

to inhibit the relays while the vibration data is trended in order to determine correct alert and danger setpoint values for each channel.

to keep the monitors relays from going into their alarm states while the machine is maintained or tested.

Step 1 Strip the insulation from the conductors in the relay cable.

Step 2 Pull relay terminal strip from the monitor.

Step 3 Connect the wires from the relay cable into the terminal strip. The wiring should be specified to handle the above mentioned voltages.

Step 4 Replace the terminal strip in the relay connector of the monitor.


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2.6 Power Connections

The 1900/55 Fan Monitor can be powered by either 120 Vac or 240 Vac, depending on which option was ordered.

CAUTION

Damage to the monitor may result if incorrect power

is applied.


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Step 1 Strip the insulation from the conductors in the power cable.

Step 2 Crimp ring or spade lugs on the power cable.

Step 3 Attach the power cable to the power terminal strip on the monitor. The power cable used must be specified to handle the voltage levels.

An external 20 amp circuit breaker which conforms to local electrical codes is recommended when connecting power to the monitor.

2.7 Powering Up the Monitor

Route the cables so that they are out of the way of the monitor and will not get pinched or cut when the monitor closes. Leave enough slack in the cables so that the monitor can be opened. Screw the monitor closed. Turn the power source to the monitor on. The monitor should complete its power up self-test, the OK light will flash, if the OK relay is configured as nonlatching, and all four channels should be on. If any channels transducer was not connected, then the OK light will be off until that channel is turned off. See the configuration chapter for information on configuring each channel. Press the Reset button to stop the OK light from flashing.

Section 3 - Program Mode

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3. Program Mode The 1900/55 Fan Monitor has two modes of operation: PROGRAM and NORMAL. This chapter shows how to use the PROGRAM mode to configure the monitor.

The menu in PROGRAM mode is organized to contain primary menus and secondary menus. The primary menus are:

Language

Point ID

Setpoints

Relay Settings

Danger Relay Bypass

Channel Activity

Units

LCD Scan Time

Self-Test

and possibly additional menus if a communication card is present.

While in NORMAL mode, you may view the programmed values but may not change them. To enter NORMAL MENU mode (programmed values viewing mode), press the Menu button on the front panel. To exit NORMAL MENU mode, press the Stop / Resume button.

The selected value is marked with an asterisk (*) to the left of the value.


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3.1. Entering PROGRAM Mode

To enter PROGRAM mode, set the Mode switch to PROGRAM. The programmed values will be saved when you turn the Mode switch back to NORMAL position.

Application Alert

Do not leave the monitor in PROGRAM mode.

The monitor is NOT protecting your machinery while in PROGRAM mode.

3.2. Language

This menu lets you program the language that is used in the display. The following table provides translations so that if the monitor accidentally gets programmed in a language that you do not understand you can find the language menu and program it for the desired language.

Options:

English

French

German

Spanish


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Translation Table:

Language Used:

English

French

German

Spanish

Language

Langage

Sprache

Lenguaje

English

Anglais

Englisch

Ingles

French

Francais

Franzoesisch

Frances

German

Allemand

Deutsch

Aleman

Term:

Spanish

Espagnol

Spanisch

Espanol


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3.3. Point ID

Use Point ID (Point Identification) to identify where the transducer attached to that particular channel is mounted. It is only a label, therefore, it is not crucial for the

operation of the monitor.

Changes to Point ID are saved automatically whether the Select button is pressed or not. This is different from other program parameters.


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3.4. Setpoints

There is an Alert and Danger setpoint for each channel. Each setpoint can be programmed independently.

Adjust the setpoints within the ranges and at the increments shown in the following table. Setpoints will be set at the default value if the channel setpoints are not programmed.

Default Values

Units

Minimum

Maximum

Increment

Alert

Danger

in/s pk

0.10

2.00

0.10

0.50

1.00 in/s rms

0.10

1.50

0.10

0.50

1.00 mm/s pk

2.0

50.0

1.0

12.0

25.0 mm/s rms

2.0

35.0

1.0

12.0

25.0

Since setpoint values have units, choose the correct unit before you program the setpoints. If you change units after you adjust the setpoints, the monitor automatically converts the setpoints. After you change units, verify that the converted setpoints are what you intend them to be.


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3.5. Relay Settings The 1900/55 Fan Monitor has 6 relays: OK relay, Alert relay, and a Danger relay for each channel.

The labels on the monitor are for the factory default of normally de-energized relays. When configured as normally energized relay, then the normally open (NO) and normally closed (NC) contacts are reversed.

Alarm State

Normally Energized

Normally De-energized

No Power

No alarm

(shelf state)

With Power

No alarm

With Power

In alarm

The alarm state for each type relay is not OK for the OK relay, Alert for the Alert relay, and Danger for the Danger relay.

When the relay is configured for latching, the behavior of the relay is as follows: if the relay goes into alarm and then the alarm condition goes away, the relay will stay in the alarm state until the Reset button is pressed or the remote Reset contacts are closed.


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Relay

Option

Selection

Factory Default

latching

OK relay

Latching

nonlatching

nonlatching

energized

Normally energized

de-energized

de-energized

latching

Latching

nonlatching

latching

Alert relay

Time delay

5 to 15 seconds

5 seconds

energized

Normally energized

de-energized

de-energized

latching

Latching

nonlatching

latching

Danger relay

Time delay

5 to 15 seconds

5 seconds


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3.6. Danger Relay Bypass

When the Danger relay is bypassed, and a danger condition exists, the display and LED indicators will operate normally, but the danger relay will not go into an alarm state.

Bypassing the danger relay is useful in the following situations:

--when you test or perform maintenance on your machine

--when you trend the vibration of a machine to determine appropriate levels for the alert and danger setpoints.

The factory default for Danger Relay Bypass is not bypassed.


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3.7. Channel Activity

Each channel may be programmed ON or OFF. If a channel is programmed off, the channel is not monitored and does not vote for the OK relay or the alert relay. The parameters of channels that are turned off can still be programmed. Turn off any channel that has no transducer attached so that the OK status of the monitor will be valid for the remaining channels that are in use.

The factory default for channel activity is ON.


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3.8. Units Use the Units menu for displaying velocity values and the setpoints. If you change the units, check that the setpoints are within the maximum and minimum values (see Setpoints section above).

Options:

in/s pk

in/s rms

mm/s pk

mm/s rms

The factory default is in/s pk.


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3.9. LCD Scan Time LCD Scan Time is used to determine how long each channel is displayed on the front panel.

Data collection and monitoring continues for all four channels regardless of which channel is being displayed. The front panel buffered output connector will have the signal of the channel currently displayed.

Options:

1 to 20 seconds, in 1 second increments.

The factory default is 5 seconds.


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3.10. Self-test Self-Test has 2 secondary menus:

Engage relays during test?

Begin Self Test?

Engage relays determines whether you want the relays to change state while the self-test is run. If you select Yes, all the relays will be turned on and tested and then turned off and tested again. The option always starts with No so that relays will not be engaged during self-test. Only if you change the option to Yes will the relays be engaged.

The next option is to Begin Self Test. Answering Yes to this option will begin the self-test function. If you answer No then the self-test will not start and programming can continue.

To run a Self-Test:

Set the Mode switch to PROGRAM

Press the arrow button until "SELF TEST menu is displayed on the front panel

Press the Select button to move to the Engage relays secondary menu and select the option you want. (We recommended that you engage relays during the test, but ensure that engaging the relays on and off does not cause a problem.)

Press the Menu button to move to the Begin Self-Test secondary menu, choose yes, and press the Select button. The self-test will begin.

During self-test, the display will show TEST IN PROGRESS, all lights will be off, and then all display segments and lights will come on. Any errors found during self-test will be displayed once the monitor is returned to NORMAL mode. Any errors that existed prior to performing a self-test will still be in the error list. All errors should be cleared prior to running a self-test.


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3.11. To exit PROGRAM Mode

When the Mode switch is set to NORMAL all the changes made in Program mode will be in effect and vibration monitoring for all active channels will begin.

3.12. Viewing and Recording Programmed Values

While the Mode switch is in NORMAL position, you may view the programmed values, but you may not change them. To view programmed values press the Menu button on the front panel.

While viewing programmed values the functional buttons are Menu, Select, and Stop/Resume. To move from one menu to another, press Menu or Select. To return to velocity display, press Stop/Resume. Both the arrow buttons and combination of Shift + Menu are not functional. A program record sheet is provided to record the programmed options for your records. Copies of the sheet can be made to record program changes or programs for other units in the plant.


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0.10 to 2.00 in/s pk incr.:0.10 in/s 0.10 to 1.50 in/s rms

2.0 to 50.0 mm/s pk incr.:1.0 mm/s 2.0 to 35.0 mm/s rms

(1 to 20 sec incr.:1 sec)

(Zero: -8 to +8) (Span: -28 to

+28)

(5 to 15 sec incr.:1 sec)

1900/55 Program Record Sheet Date: ___________________________

Plant location: ___________________________________________________

Part number: 1900/55- ________ - ________ - ________ - ________

Serial number: ________________________________________

Language: ___________________

Point ID: CH1 __________________________

CH2 __________________________

CH3 __________________________

CH4 __________________________

Setpoints: Alert Danger

CH1 _________________ ___________________

CH2 _________________ ___________________

CH3 _________________ ___________________

CH4 _________________ ___________________

Relay Settings:

OK ____ latching (Y/N)

Alert ____ energized (Y/N) ____ latching (Y/N) time delay ______ sec

Danger

CH1 ____ bypass (Y/N) ____ energized (Y/N) ____ latching (Y/N) time delay ______ sec




Channel Activity (On/Off): CH1 _______ Units (check): in/s pk ____ rms ____

CH2 _______ mm/s pk ____ rms ____

CH3 _______

CH4 _______

LCD scan time: _______ sec

4 to 20 mA Comm Card Date: __________________________

Zero Span Zero Span

Counts: CH1 __________ __________ CH3 __________ __________

CH2 __________ __________ CH4 __________ __________

Section 4 - Normal Mode

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4. Normal Mode In NORMAL mode, the 1900/55 Monitor monitors the vibration on all active channels and displays data using the display, bars, and lights. This chapter shows how the monitor displays vibration and channel status and explains how to use the buttons on the front panel to control how this data is displayed. The chapter also describes how the connectors, relays, and contacts work.

The display shows the vibration level on each of those channels. The display either scans through the active channels or displays a specific channel. The display also gives the OK, Alert, Danger and Bypass status for the displayed channel.

The monitor votes among all active channels and uses the lights to display the results of the voting. The lights display the status of the overall monitor regardless of which channel is being displayed.

During NORMAL mode operation the current configuration of the monitor can be viewed. See Program Mode chapter for viewing programmed values.

The front panel buffered output connection can be used to collect and analyze transducer signals. The signal on the front panel buffered output is the signal for the channel shown on the display.

Latched relays and latched / flashing Alert and Danger lights can be reset by pressing the Reset button or closing the remote Reset contacts.

4.1. Velocity Display

The velocity display shows the following data for a particular channel:

channel number

point ID

vibration level (in the appropriate units)

channel status (OK, alert, danger, bypass)

To program point ID and the units, see Program Mode chapter.


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Display Description

Vibration Display

Description

velocity value

The measured value for velocity in the programmed

engineering units.

"channel off"

The channel is inactive. (See Program Mode chapter, Channel Activity section for information about inactive channels.)

"overrange"

The measured value for velocity exceeds the maximum velocity value. (See the following table.)

Valid Ranges for Velocity

Valid Velocity Range

Units

minimum

maximum

in/s pk

in/s rms

mm/s pk

mm/s rms

0.00

0.00

0.0

0.0

2.00

1.50

50.0

35.0

Normally the Velocity display will scan from one channel to another. To stop at a particular channel, press Stop / Resume button. To resume scanning, hold down the Stop / Resume button again until the channel changes. To stop scanning and step from one channel to another, press the Up Arrow / Down Arrow buttons. The scan time is controlled by LCD Scan Time (see Program Mode chapter)


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4.2. Buttons

The following table lists the functions of the 6 buttons on the front panel.

Display Mode

Button

Velocity Display

Error Display

Normal Menu Mode

Menu

Enter Normal Menu mode (to view programmed values) or Error Display (to view stored errors).

Move to the next stored error.

Move from one primary menu to another or from one secondary menu to another.

Stop/Resume

Stop scanning if the monitor is scanning. Resume scanning if the monitor is not scanning.

Return to Velocity Display without erasing errors.

Return to Velocity display.

Up Arrow

Stop scanning and move up one channel.

NOT USED

NOT USED

Down Arrow

Stop scanning and move down one channel.

NOT USED

NOT USED

Select

NOT USED

NOT USED

Display a secondary menu.

Reset

Reset latched / flashing alarms for the channels, lights and relays.



To resume scanning channels, press and hold the Stop/Resume button until the channel display changes.

For menu structure, see Program Mode chapter.

To clear stored errors, see Maintenance and Troubleshooting chapter.


44

4.3. OK

OK is displayed using three indicators: bars, light, and relay. The following table shows how these indicators display the OK status.

OK Relay Setting

OK Bar in Display

OK

Light

OK

Relay

Explanation

latching or nonlatching

at least one channel's OK bar is off.

off

alarm state

the channel with the OK bar off is not OK. Check the transducer installation.

latching

off

alarm state

nonlatching

at least one channel's OK bar is flashing.

flashing

nonalarm state

a flashing OK bar means that the channel has gone not OK since the last reset, but is OK now. To reset flashing bars / lights or latched lights / relays, press the Reset button or short the remote Reset contacts.


all OK bars are on.

on

nonalarm state

all channels are OK.

NOTE

When a channel goes not OK, it takes 15 seconds after the channel goes back to OK for the OK bar, OK light, and OK relay

to come back on.

If the OK relay is configured as latching and the channel goes not OK,

the OK light and OK relay stay in its not OK state until the Reset button is pressed or the remote Reset contacts are closed and the not OK condition has cleared.

when the bypass light is on alarming for that channel(s) is disabled

if the NOT OK channel(s) returns OK for a full 15 seconds the bypass light will go off and alarming will be enabled. Resetting will unlatch the OK relay and the OK light will come back on.


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4.4. Alert

Alert is displayed using three indicators: bars, light, and relay. The following table shows how these indicators display the alert status.

Alarm Setting

Alert Bar in Display

Light

Relay

Explanation


at least one of the alert bars is on.

on

alarm state

the channel with the alert bar on is in alert.

latching

on

alarm state

nonlatching

at least one of the alert bars is flashing.

flashing

nonalarm state

flashing bar means that the channel has gone into alert since the last reset, but is not in alert now. To reset flashing bars / lights, or latched lights / relays press the Reset button or short the remote Reset contacts.


all alert bars are off.

off

nonalarm state

all channels are not in alert.


46

4.5. Danger

Danger is displayed by using three indicators: bars, light, and relays. There are four danger relays, one for each channel. The following table shows how these indicators display the danger status.

Alarm Setting

Danger Bar in Display

Light

Relay

Explanation


at least one of the danger bars is on.

on

alarm state

the channel with the danger bar on is in danger.

latching

at least one of the danger bars is on

on

alarm state

When the relay is configured for latching, the bar, light, and relay do not flash. To reset latched lights / relays press the Reset button or short the remote Reset contacts.

nonlatching

at least one of the danger bars is flashing.

flashing

nonalarm state

flashing bar means that the channel has gone into danger since the last reset, but is not in danger now. To reset flashing bars / lights, or latched lights / relays press the Reset button or short the remote Reset contacts.


all danger bars are off.

off

nonalarm state

all channels are not in danger.

NOTE If Danger Relay Bypass is configured as on for a particular channel, the danger light may come on but the danger relay

will not go into alarm state.


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4.6. Bypass

Bypass light comes on when:

At least one of the channels is configured for Danger Relay Bypass (see Program Mode chapter, Danger Relay Bypass section).

At least one of the channels is not OK (therefore that channel is bypassed).

The Relay Bypass contacts are shorted.

A self-test is in progress.

Bypass light is flashing when:

The monitor is in PROGRAM mode.

4.7. Connectors and Contacts

Buffered Outputs:

The BNC connector on the front panel provides the buffered signal of the transducer of the displayed channel.

The remote buffered output connector on the back of the monitor provides continuous buffered outputs for all four channels.

Relay Bypass Contacts:

When the Relay Bypass contacts are shorted, alert and danger relays will go to their non-alarm states. All channels will go not OK and the OK relay will go to its not OK state.

Remote Reset Contacts:

When the Remote Reset contacts are shorted, latched and flashing lights and relays will be reset if the alarm condition is no longer present. This contact has the same effect as pressing the Reset button on the front panel.

Section 5 - Maintenance and Troubleshooting

49

5. Maintenance and Troubleshooting Although the 1900/55 Fan Monitor is a low maintenance instrument, we recommend that you inspect the monitor every three to six months to verify that the monitor is in good working order. Inspect the following items:

The monitor is powered up, the OK light is on and the display has a valid vibration reading.

The electrical connections to the monitor are in good condition and have no corrosion or loose wires.

The weatherproof enclosure is still properly sealed and does not contain any moisture.

If the monitor is mounted in a weatherproof housing it should not require any cleaning. However, if the monitor or weatherproof housing is in need of cleaning, a damp cloth or mild detergent can be used. Do not use solvents or abrasive cleaners on the monitor or weatherproof housing.

CAUTION

Wiring and servicing must be performed by qualified personnel.

5.1 Calibration Check

Connect function generator, multimeter, 4000 ohm resistor, and 10 UF capacitor as shown below for the channel of interest at the Velomitor transducer input connections. Adjust function generator sinewave to 63.66 Hz with 0 Vdc offset. Convert the input voltages below to rms units before using the voltmeter to set the function generator signal amplitude. The corresponding channel display will indicate the velocity. If the display is incorrect, check the troubleshooting section that follows for further assistance.

1 in/sec peak = 200 mV pk-pk

1 mm/sec peak = 7.874 mV pk-pk

1 in/sec rms = 282.8 mV pk-pk 1 mm/sec rms = 11.13 mV pk-pk


50

5.2 Troubleshooting The purpose of this section is to help you identify potential problems with your setup. This section is not intended to instruct you on repairing the monitor. If after using the troubleshooting guide you feel that the monitor is not operating properly then you should contact your local Bently Nevada representative.

Application Alert Do not leave the monitor in PROGRAM mode. The monitor is NOT protecting your machinery while in PROGRAM mode.

Consider the above application alert before proceeding on to the troubleshooting table below.


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Problem

Possible Solution

Monitor does not power up.

Verify that the power to the monitor is on and meets the monitor specifications (see Specification appendix).

Check the fuse in the monitor. The fuse is located near the power terminal strip. The monitor's back cover does not need to be removed in order to gain access to the fuse. Replace with part number 01700067 or 01700068 depending on the power option.

The monitor is on but the OK light does not turn on.

The monitor will not turn on the OK light until 15 seconds after it has completed its self-test and all active channels are OK.

Turn off all channels that are not used (see Program Mode chapter).

If the OK relay is configured as latching the OK light will not turn on until the Reset button is pressed.

The OK light will not turn on if the display shows any channel to be NOT OK. Check the transducer and cabling on those channels that say NOT OK for proper connection (see Installation chapter or transducer manual).

OK light is flashing.

If the OK relay is configured as nonlatching the monitor will flash the OK light anytime it is powered down and then restarted. Pressing the Reset button will stop the flashing.

When a channel goes NOT OK and then returns to OK status the OK light will flash. The display will indicate which channel this occurred on by flashing the OK bar for that channel. Check the transducer and cable on that channel (see Installation chapter or transducer manual). Pressing the Reset button will stop the flashing.

Bypass light is flashing.

The monitor is in PROGRAM mode. Return the monitor to NORMAL mode (see PROGRAM mode chapter).

Cannot change programmed values.

Not in PROGRAM mode. Move the Mode switch to PROGRAM position.

ROM Error

RAM Error

These are non-recoverable errors. The monitor is not providing machine protection. Contact your local Bently Nevada representative.


52

Problem

Possible Solution

EEPROM Error

CONFIG Register

Error

EEPROM Setpoint

Error

EEPROM Relay

Setting Error

EEPROM Dgr Relay

Bypass Error

EEPROM Channel

Activity Error

EEPROM Units

Error

The monitor has detected an error in the configuration stored in the EEPROM.

Go into program mode (see PROGRAM MODE chapter) and confirm that all configurations are correct. Correct as needed. Return to normal mode and clear the error (see the procedure at the end of this section). If the error returns after clearing it contact your local Bently Nevada representative.

V+ Error

V- Error

Vxdcr Error

The monitor has detected an error with one of its supply voltages.

If the error is flashing alternately with the channel display then the monitor has detected an error in the past but is no longer present. Check to see that the line voltage to the monitor is within monitor specifications (see Specifications appendix). Line voltage fluctuations outside the monitor specifications will cause this problem. Clear the errors (see the procedure at the end of this section). If the error reappears contact your local Bently Nevada representative.

If the error flashes continuously and is the only thing on the display then the error is currently present. The OK light will be off and the BYPASS light will be on. The monitor is not providing machine protection. Check to see that the line voltage to the monitor is within monitor specifications (see Specifications appendix). If the line voltage meets the monitor specifications then contact your local Bently Nevada


53

Problem

Possible Solution representative. If the line voltage does not meet the monitor specifications then the monitor will not work.

Alert Relay

Failed

OK Relay

Failed

SPI Error

A/D Error

The monitor has detected an internal error.

You need to clear the error (see the procedure at the end of this section). Run self-test (see Program Mode chapter). If the error reappears after clearing it contact your local Bently Nevada representative.

If the error does not reappear after clearing it then run self-test (see Program Mode chapter). When the error involves a relay you must answer "yes" to "Engage relays during test?".

Application Alert

If you answer yes to "Engage relays during test?" question, all relays will open and close. Ensure that this will not cause problems to your machine.

If after running self-test the error reappears contact your local Bently Nevada representative. The monitor has to be returned to normal mode in order to view errors.


54

Problem

Possible Solution

Danger 1 Relay

Failed

Danger 2 Relay

Failed

Danger 3 Relay

Failed

Danger 4 Relay

Failed

The monitor has detected a problem with one or more of the danger relays.

You need to clear the error (see the procedure below) and run self-test (see Program Mode chapter).

If the error reappears after clearing it contact your local Bently Nevada representative.

If the error does not reappear after clearing it then run self-test (see Program Mode chapter). To test the relays you must answer "yes" to engage relays during test question.

Application Alert If you answer yes to "Engage relays during test?" question,

Ch 1 Span Adjust

Error

Ch 2 Span Adjust

Error

Ch 3 Span Adjust

Error

Ch 4 Span Adjust

Error

The monitor encountered a problem while trying to span adjust during its self-test.

The monitor will not be able to protect any machine connected to a channel that has encountered this error, even if the error has been cleared.

You must clear the error and run self-test again (see Program Mode chapter). Do not clear the error unless you are prepared to run self-test. If you are not prepared to run self-test contact your local Bently Nevada representative.

Clear the error (see the procedure below this table). Run self-test (see Program Mode chapter). If after running the self-test the error reappears contact your local Bently Nevada representative.

Ch 1: WARNING

High Span Adjust

Ch 2: WARNING

High Span Adjust

Ch 3: WARNING

High Span Adjust

The monitor encountered a problem while trying to span adjust during its self-test.

The monitor is still able to provide protection if this error is encountered but it is highly recommended that self-test be run again. Clear the error (see the procedure below this table). Next run self-test (see Program Mode chapter). If after running self-test the error reappears contact your local Bently Nevada representative.


55

Clearing Stored Error Codes

1. Start viewing the error list by pressing the Menu button.

2. Continue pressing the Menu button to display each error, until the display reads "End Error List".

3. Press and hold the Shift button and then press the Select button until the display reads "LANGUAGE".

4. Press the Resume button to return to a normal vibration display.

Replacing the Fuse

The back cover of the monitor does not need to be removed to replace the fuse. Replace with part number 01700067 for 240 VAC power supply voltage or 01700068 for 120 VAC power supply voltage.

Section 6 - Specifications

57

6. Specifications Parameters are specified at 25 C (77F) unless otherwise indicated.

Application Alert Operation outside the specified limits will result in false readings or loss of machine monitoring.

6.1 Environmental

Operating Temperature: -20 to 70 C (-4 to 158 F)

Storage Temperature: -30 to 90 C (-22 to 194 F)

Maximum Relative Humidity: 95 % noncondensing

ESD: EN61000-4-2, Level 4 (8 / 15 kV), criteria B

RFI: EN55022, Radiated Emissions, Class A

EN55022, Conducted Emissions, Class A

ENV50140, Radiated Immunity, Level 3 (10 V/m), criteria A

ENV50141, Conducted Immunity, Level 3 (10 V), criteria A

EMI: EN61000-4-4, EFT, Level 3 (2 / 1 kV), criteria B

EN61000-4-5, Surge Immunity, Level 2 (1 / 0.5 kV), criteria B

EN61000-4-8, Power Frequency, Level 4 (30 A), criteria A

Shock: The monitor will withstand a 3-foot drop to a vinyl covered concrete floor.


58

6.2 Electrical

120 V Option

Voltage: 90 to 125 Vac

Current: < 0.20 A

Frequency: 50 to 63 Hz

240 V Option

Voltage: 180 to 250 Vac

Current: < 0.10 A

Frequency: 50 to 63 Hz

Input

Transducer input: 3.94 mV/(mm/s) pk (100 mV/(in/s) pk) with a 12 Vdc bias

Frequency response

Monitor: 1 to 3000 Hz (-3 dB)

Monitor with Velomitor CT: 1.5 to 1000 Hz (-3 dB)

Impedance: 1 M in parallel with 3300 pF

Maximum input velocity: 50 mm/s pk, 35 mm/s rms,

2 in/s pk, 1.5 in/s rms

Accuracy

Monitor: 5 % + 5 counts at 100 Hz

Monitor with Velomitor CT: 10 % + 5 counts at 100 Hz

Relay Bypass: A short between Relay Bypass pins A and B will keep alert and danger relays from changing states.

Remote Reset: A short between Remote Reset pins A and B will clear a "Not OK" , an "Alert" or a "Danger" condition that is no longer present.

Section 6 - Specifications

59

Buffered output

One dedicated output for each channel on terminal strip and one multiplexed output on front panel (BNC connector).

Frequency response

Monitor: 0.17 to 5300 Hz (-3 dB)

Monitor with Velomitor CT: 1.5 to 1000 Hz (-3 dB)

Output scale factor: 19.7 mV/(mm/s) (3.94 mV/(mm/s) input),

500 mV/(in/s) (100 mV/(in/s) input)

Maximum velocity: 203 mm/s pk (8 in/s pk)

Output impedance: 300

Phase: 0 at 100 Hz

Maximum capacitive load: 0.08 F

Transducer Power

Current sources: 3.43 mA dc 0.1 mA (to power transducers)

6.3 Relays Type: 1 form C SPDT

Case: Epoxy sealed

Contact Ratings

Maximum power: 224 W or 2000 VA

Maximum current: 8 A

5 A (BASEEFA option)

Maximum voltage: 28 Vdc or 300 Vac

30 Vdc or 30 Vac (BASEEFA option) Minimum load: 12 V, 100 mA

Dielectric Strength (at sea level): 4000 V rms contact to coil

Life Expectancy (minimum)

Mechanical: 10 million operations

Electrical: 105 operations at rated load

Insulation Resistance: 1000 M minimum at 20C, 500 Vdc, 50 % relative humidity


60

6.4 Displays

Liquid Crystal Display: 2 lines by 16 characters

Indicators

OK: Green light on indicates an OK condition.

Alert: Yellow light on indicates a vibration level higher than the alert setpoint.

Danger: Red light on indicates a vibration level higher than the danger setpoint.

Bypass: Red light on indicates a channel is bypassed.

6.5 Physical

Height: 337 mm (13.25 in)

Width: 295 mm (11.62 in)

Depth: 130 mm (5.13 in)

Weight: 3.18 kg (7 lbs)

6.6 Ordering Information A B C D

1900/55-X-X-X-X

Option Descriptions

A - XX Power Supply Option D - XX Hazardous area approvals

0 1 120 Vac Power Supply 0 0 No approvals

0 2 240 Vac Power Supply 0 1 CSA NRTL/C Approvals

0 2 BASEEFA Zone 2 Approvals

B - XX Communication Option

0 0 No communication

0 1 4 to 20 mA output

0 2 TM2000 Communication Card

C - XX Language Option

0 1 English

0 2 French

0 3 German

0 4 Spanish

Section 7 - Accessories

61

7. Accessories The following list of items may be used with the 1900/55 Fan Monitor. For transducer accessories, refer to the particular transducer's data sheet and manual.

7.1 Velomitor CT Transducer

System Frequency Response using a Velomitor CT Transducer:

3.0 Hz to 900 Hz 1 dB 1.5 Hz to 1.0 kHz 3 dB

7.1.1 Option Descriptions A B C

190501- XX XX - XX

A X X Mounting Hardware Option

0 0 No Stud

0 1 Stud 3/8-24 to 3/8-24

0 2 Stud 3/8-24 to 1/2-20

0 3 Adhesive Stud 3/8-24

0 4 Stud M6x1 with 3/8-24 Adapter

0 5 Adhesive Stud M6x1 with 3/8-24 Adapter

0 6 Stud 3/8-24 to 1/4-28

0 7 Plate Stud 3/8-24 to 3/8-24

0 8 Plate Stud 3/8-24 to 1/2-20

0 9 Plate Stud 3/8-24 to 1/4 NPT

1 0 Plate Stud M6x1 to M6x1 with 3/8-24 Adapter

1 1 Plate Stud 3/8-24 to 1/4-28

1 2 Plate Stud 3/8-24 to M8x1

1 3 Quick Disconnect Stud

* Contact your Bently Nevada representative for additional mounting options.

B X X Integral Cable Option

1 0 10 Meters

C X X Agency Approvals

0 0 No Approvals

0 1 CSA NRTL/C Approvals

0 2 LCIE

0 3 BASEEFA ZONE 2

125389-01 Velomitor CT Operation Manual


62

7.2 Velomitor Transducer

System Frequency Response using a Velomitor Transducer: 4.5 Hz to 3.4 kHz 3 dB A B

330500- XX - XX

7.2.1 Option Descriptions A X X Mounting Thread Adapter Option

0 1 1/2-20 UNF

0 2 M8 X 1

0 3 1/4-28 UNF

0 4 1/4-20 UNC

0 5 1/4-18 NPT

If a housing is required, the Mounting Thread Adapter Option -01 for 1/2-20 UNF threads is used with our 21128 Velocity Transducer Housing.

B X X Agency Approval Option

0 0 Not required

0 1 CSA NRTL/C

0 2 SIRA

100076-01 Velomitor Manual

7.3 Velomitor XA Transducer System Frequency Response using a Velomitor XA Transducer:

4.5 Hz to 3.4 kHz 3 dB A

330525- X X

7.3.1 Option Descriptions A X X Approvals

0 0 None required

0 1 CSA NRTL/C

0 2 CENELEC Approval

107316-01 Velomitor XA Manual

Section 7 - Accessories

63

7.4 Weatherproof Enclosure 190101-01 Monitor Type 4X housing.

This housing is used when the monitor is mounted locally on the fan deck, or when mounted in other outdoor locations.

106769 Junction Box / Terminal Housing. This housing is for terminating transducer signal cable outside the fan stack. This junction box is provided with terminal strips and optional fittings.

7.5 Bulk Cable 02173006 Bulk Cable

2 conductor twisted, shielded 18 AWG (1.0 mm) cable without connectors or terminal lugs. Specify number of feet.

7.6 Conduit and Cable Fittings

Based on installation requirements, conduit and cable fittings are available to order for use with a weatherproof enclosure.

Sealtite Flexible Conduit

A

14847- X X 1/2 inch conduit assembly

14848- X X 3/4 inch conduit assembly

Option Description

A X X Conduit length option in feet

Order in increments of 1.0 foot (0.3 meters)

Minimum Length: 1 foot (0.3 meters) Maximum Length: 99 feet (30 meters)

Fittings

03813103 3/4 inch NPT chrome plated zinc conduit hub fitting

03813106 1-1/4 inch NPT chrome plated zinc conduit hub fitting

26650-01 3/4 inch to 1/2 inch NPT reducer

26650-03 1-1/4 inch to 1 inch NPT reducer 03839240 1/4 inch NPT cable seal; 0.200 to 0.265 inch diameter (5.0 to 6.7 mm) for

use in sealing transducer cable entry to weatherproof enclosure. One required per each cable entry to housing.


64

7.7 Fuses

The fuse is used on the 1900/55 Fan Monitor to protect the electronics from damage due to large voltages or currents appearing on the power supply input of the monitor. The fuse required by the monitor is dependent on the type of power supply.

01700068 200 mA fuse for 120 VAC supply 01700067 100 mA fuse for 240 VAC supply

7.8 1900/55 Fan Monitor Manual

Spare manuals may be useful to allow other engineers or technicians involved in the installation, operation or maintenance of the 1900/55 Fan Monitor to have their own copy.

190155-01 1900/55 Fan Monitor Manual

7.9 Optional 4 to 20 mA Communication Card A

190201- X X

Option Descriptions

A X X Language Option

0 1 English

0 2 French

0 3 German

0 4 Spanish

If no communication card is desired, a blank cover is available.

129454-01 1900/55 blank communication card cover

7.10 Optional TM2000 Communication Card A

190202- X X

Option Descriptions

A X X Language Option

0 1 English

0 2 French

0 3 German

0 4 Spanish

If no communication card is desired, a blank cover is available. 129454-01 1900/55 blank communication card cover

0155j1

Documents

bently nevada llc

control of product

nevada usa

label symbols bently

power connections

following contact information

velomitor contact information

relay connections