instructor guide - transit training · instructor guide 216: elevator: ... the fire gib is the ......

Instructor Guide

216: Elevator: Principles of Door Operation & MaintenanceModule 2: Introduction to Elevator Doors

Elevator – Introduction to Elevator Doors Instructor’s Guide

Table of Contents

1

Overview……………………………………………………………………………………………..…..………4 Door Components - Header…………………………………………………………………………..……..11 Door Components - Door Panel..…………………………………………………………………………...16 Door Components - Sill………………………………………………………………………………..……..26 Door Operation………………………………………………………………………………………………...31 Door Operation and Schematics …………………………………………………………………………..32 Summary…………………………………………………………………………..……………………………36

Elevator – Introduction to Elevator Doors Instructor’s Guide Icons Used In This Guide Agenda

Topic # Topic Title Duration

Total Time:

2

1

2

3

4

5

Overview

Field Trip

Door Components – Header

Door Components – Door Panel

Door Components – Sill

20 minutes

50 minutes

30 minutes

40 Minutes

20 Minutes

6 Field Trip 70 Minutes

7 Activity 60 Minutes

8

Door Operation and Schematics 20 Minutes 9

Door Operation 30 Minutes

Summary 20 Minutes 10

360 Minutes

Elevator – Introduction to Elevator Doors Instructor’s Guide

Overview Purpose The purpose of this module is to:

Objectives At the end of this lesson, the transit elevator/escalator trainee will be able to:

Materials Mandatory Make sure you have the following

Optional You may also want the following for optional activities:

3

• Provide the participant with a general knowledge and understanding of the components of transit elevator doors and how they relate to the method of operations of multiple elevator door configurations.

• PowerPoint Presentation • Coursebook • Quizzes • Handouts • Colored Pencils

• Chalk board with chalk, large paper with marker, etc.

• Internet connection • Lab, simulator or out of service elevator • Retractable Key Ring • Spring or Spring Closer • Laser Pointer

• Identify the various components on each door configuration.

• Describe the method of operation for different door configurations.

• Using an MCE schematic, explain the sequence of operation for elevator car doors.

Elevator – Introduction to Elevator Doors

DO SAY Materials Needed

Instructor’s Guide

In your own words:

Instructor’s Notes

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Module Length: 360 min Time remaining: 360 min This section: 20 min (10 slides) Section start time: ________ Section End Time: ________

Welcome to the course on elevator doors. Advance. Our riders depend on us to have functioning elevators – this includes their door systems – otherwise they can encounter situations like this one. [Play humorous video of man in wheelchair getting his foot caught in the door when automatic re-opening device does not function properly.]

PPT slides 1, 2 REVIEW slide

Internet connection




In your own words:


5

PPT slide 3 In all seriousness...Today we will be building on your previous knowledge on elevator doors by identifying all components –including the automatic re-opening device, describing the methods of operation of elevators more in depth – making special references variances among different configurations - and using an MCE schematic to explain the sequence of operation for an elevator door. Advance.

REVIEW slide





In your own words:


6

PPT slide 4 Lets take a look at some of the key words we will be defining as move through this module: Astragal, Automatic Re-opening Device, Car Door, Clutch, Daylite, Door Closed Limit (DCL), Door closers, Door hanger assembly, Door hanger tracks Advance Door Open Limit (DOL), Door Panel, Door restrictor, Door Sills, Eccentric, Final Speed Close (FSC), Final Speed Open (FSO), Fire Tabs, Gate switch, Gibs Advance.

REVIEW key terms





In your own words:


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PPT slides 5, 6 As well as: Hanger roller, High Speed Close (HSC), High Speed Open (HSO), Hoistway Door, Interlock, Leading Edge, "Made up“, Master Operator (MO), Medium Speed Open (MSO) Advance Operator, Pick-up roller, Relating cables, Release Roller, Return Column, Retractable safety edge, Safety curtain, Slow door connecting link, Soft Start Open (SSO) Advance. And lastly Spirator, Spring closer, Varying Voltage Varying Frequency (VVVF), Vision panels Advance.

REVIEW key terms





In your own words:


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PPT slides 7, 8 In Course 213 module 5, you learned about the types of door configurations. What configuration is this? Call on participants for answer. Advance for correct answer. Answer: center opening, single speed. Advance. How about this one? Call on participants for answer. Advance for correct answer. Answer: side opening, multi-speed. Advance. And…is this a left hand or right hand opening door? Call on participants for answer. Advance for correct answer. Answer: left hand opening. Advance.

ASK participants to identify different door configurations CLASSROOM ACTIVITY





In your own words:


9

PPT slides 9, 10 In Course 213 module 5, you also learned the main principles of elevator doors. Who can tell me in their own words how it is that doors on elevators operate? [Call on one volunteer for an answer and ask others to build on this until you come up with a general description like the one on slide 7] Advance. [Read the description. If you wish, click the image and show the animation. If you show the animation say sometime like the following] Remember this is a simplified version of an elevator, the systems we’ll be learning about are much more complicated

ASK participants to explain how elevator doors operate CLASSROOM ACTIVITY





In your own words:


10

PPT slide 11 Okay, now it’s time to see how this works in the real world. Please get your stuff together for a trip to the lab. [When you get to the lab/simulator/out-of-order elevator, look at door configurations and operation. Ask for participant assistance in explaining configurations and operation.] Advance.

Module Length: 360 minutes Time remaining: 340 minutes This section: 50 minutes Section start time: ________ Section End Time: ________

REVIEW slide

CLASSROOM ACTIVITY




In your own words:


11

PPT slides 12, 13 Lets move on to look at the different components for each door configuration. Advance. Lets first take a look at an over view of the door areas and associated components, and then we will look at these individually throughout the module. Lets look at the door areas again – we have a header, door panel, and sill. Advance. [Read the names of the components for the header area of the door.] Advance. [Read the names of the components for the door panel area of the door.] Advance. [Read the names of the components for the sill area of the door.] Advance.


REVIEW slide




In your own words:


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PPT slides 14, 15 Now we’ll cover door operation more in depth by looking at how the specific components work together. Advance. Starting at the top of the door panel - is the door hanger track which is the rail on which the door hanger assembly rides when the door opens or closes. Advance. The hanger roller assembly has three main components. The hanger roller rides on the track. The eccentric keeps the assembly (and therefore the door) from being able to be lifted off of the track. The fire gib is the back up to the eccentric in case of fire. Advance.

REVIEW slides





In your own words:


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PPT slides 16, 17 Attached to the top of the car door is a door operator which opens and closes the door panels. It is electro-mechanically linked to the door panels and controlled by a Varying Voltage Varying Frequency Drive. [Note: point to each component as you talk about the operation.] Advance. The motor shaft is attached to the Intermediate pulley with a belt. The intermediate pulley connects to the drive pulley and the drive pulley connects to both crank arms. Note that door operators will vary with different types of door configurations. Advance.

REVIEW slides





In your own words:


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PPT slide 18 Lets see what we have learned so far: Hoistway door panels move back and forth on a ____________________? (check all that apply)

a. Hanger Track b. Hanger Assembly c. Door Operator

Answer: Call on participants for answer. Advance for correct answer. Answer: Advance.


ASK




In your own words:


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PPT slide 19 Lets see what we have learned so far: The door hanger assembly includes ____________________. (check all that apply)

a. Hanger Rollers b. Eccentric c. Fire Gib

Answer: a., b. Call on participants for answer. Advance for correct answer. Advance.


ASK




In your own words:


16

PPT slide 20 The door panel area is where the majority of components are. As we discussed before, what looks like one door panel is actually composed of two panels – a hoistway and a car door with a clutch and master operator release roller assembly. Note that in the case of center-opening doors, there may be two clutches present. The clutch and release rollers do not interact until the elevator stops at the determined landing – at which point the release roller enters the door clutch. This starts a whole series of interactions in the door panel. Advance.

REVIEW slide





In your own words:


17

The fixed vane in the clutch contacts the release roller, turning the pivot roller clockwise. Advance. As the pivot roller turns, it lifts the connecting linkage. Advance. And in turn pivots the keeper. Advance. This action allows the interlock to unlock - allowing the joined hoistway and car doors to open. Advance.

PPT slide 21 REVIEW slide





In your own words:


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Here is a better picture showing how the keeper and interlock interact. Interlocks make sure that the doors do not open when the car is not at a floor level. The circuit is “made up” during normal operation, keeping the door closed and “broken” by the keeper when at a landing. Advance.






In your own words:


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While this is happening on the hoistway door – a different set of interactions are happening on the car door. When the car reaches the correct floor level, the release rollers press on the sensing vane Advance. This mechanically lifts the locking rod. Advance. As the locking rod is lifted, the restrictor is disengaged and the doors are able to open. Advance. Note that in this illustration, the restrictor is still locked. Advance. Here is a close up of the restrictor when it is disengaged. Advance.

PPT slides 23, 24


REVIEW slides




In your own words:


20

We’ve seen how the door panels open and close under normal circumstances but there are also safety devices in place on hoistway door panels in case the car moves unexpectedly. These generally come in two forms: 1.) A spirator at the top of the hoistway door 2.) A spring closer at the bottom of the hoistway door. Advance.






In your own words:


21

The default position of a spirator is for the door to be closed. When the doors are opened, tension is put on the coiled wire – much like when an identification card is extended from a retractable key ring. In cases of system failure this pressure will pull on the cord – shutting the door panels. [You may want to use a retractable key ring as an example to show and hand around – and then advance the slide.] Advance.

PPT slide 26 Optional: retractable key ring


REVIEW slide




In your own words:


22

Again, the default position for a spring closer is for the door to be closed. The spring closer on the other hand is attached to the sill and connects to the hoistway door. When the door opens, the spring compresses creating pressure. In cases of system failure the pressure of the compressed spring will push the door shut. [You may want to use a compressed spring (or spring closer) as an example to show and hand around] Note that on multi-speed doors a slow door link must be attached to the drive arm of the spring closer. Advance.

PPT slide 27 Optional: spring, or spring closer


REVIEW slide




In your own words:


23

Automatic re-opening devices are required by code. The most common device is the safety curtain which uses infrared light beams to detect an obstruction at any height in the path of the doors. It has a sender and receiver edge. The sender projects an infrared beam and the receiver edge detects it. If there is an obstruction, it will block the beam – causing the doors to re-open. The safety curtain is covered by an astragal -a resilient, non-sheering molding which reduces noise and drafts inside the car. [You may want to use a laser pointer as an example of the infrared beams - then advance the slide.] Advance.

PPT slide 28 Optional: laser pointer


REVIEW slide




In your own words:


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PPT slide 29 Lets see what we have learned so far: The unlocking of the ___________________

allows the joined hoistway and car doors to open.

a. Spriator b. Closure c. Interlock

Call on participants for answer. Advance for correct answer. Answer: a. Advance.


ASK




In your own words:


25

PPT slide 30 Two safety devices in door closures include: (check all that apply) a. spirator b. spring closure c. Restrictor Call on participants for answer. Advance for correct answer. Answer: b., c. Advance.


ASK




In your own words:


PPT slide 31 Optional: gib

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We’ve worked our way down to the bottom of the door – where the gib rides along the door sill to keep the door from swinging outwards at the bottom. The majority of the gib which rides in the track is actually made of nylon – so that it moves smoothly, without excessive friction, when the door opens and closes. But in case of emergency, this nylon may melt. That is why gibs also have fire tabs which are bent to be parallel with the nylon runner and also ride in the sill. [you may want to hand a gib around for the participant to see.] Advance.


REVIEW slide




In your own words:


27

PPT slides 32, 33, 34 Okay we’ve covered a lot of ground so far, so let’s take a minute to review Who can tell me which door panel the interlock is on? Call on participants for answer. Advance for correct answer. Answer: hoistway door. Advance. How about the spirator? Call on participants for answer. Advance for correct answer. Answer: hoistway door. Advance. And the hanger assembly? Answer: both. Advance. [Note: this may be a good time for a lunch break]


REVIEW slides

CLASSROOM ACTIVITY




In your own words:


28

PPT slides 35 Okay, now it’s time to see how this works in the real world. Please get your stuff together for a trip to the lab. [When you get to the lab/simulator/out-of-order elevator, look at door components. Ask for participant assistance in identifiying where the various components are located for each area of the door.] Advance.

Module Length: 360 minutes Time remaining: 200 minutes This section: 70 minutes Section start time: ________ Section End Time: ________

CLASSROOM ACTIVITY




In your own words:


29

PPT slides 36, 37 Now I’m going to ask you to work with a partner to identify all components we’ve talked about so far. Color hoistway door components red, car door components blue and common ones green. Note that not all components are visible in the picture - where appropriate draw where the component would be (ex: vision panel). Also, some components are shown on more than one diagram. [Handout uncolored diagrams and colored pencils and coordinate pairing up.] You’ll have 10 minutes to do this, and then we’ll reconvene as a larger group. [Reconvene after 10 minutes and go over the answers – found on slide 28] Advance.

Handouts Colored pencils


REVIEW slides

CLASSROOM ACTIVITY




In your own words:


30

PPT slide 38 Lets review the answer [Use this slide to review the correct answers . Have participants compare their paper to the slide while reviewing.] Advance.

Handouts Colored pencils


REVIEW slides

CLASSROOM ACTIVITY




In your own words:


31

PPT slides 39, 40, 41 We’ve already mentioned the four main differences in operation for different door configurations but now we’re going to look a little more in depth on how door operators and linkages vary amongst configuration types. Advance. [Read and review slide.] Advance. As you can see…. [Read and review slide advancing as you progress.] Advance.


REVIEW slides




In your own words:


32

PPT slides 42, 43 Moving on, the last objective we want to cover is how to use an MCE schematic to explain the sequence of operation for doors. Advance. On the screen is an elevator door specific example of a schematic diagram from MCE. Keep in mind that MCE prints should be read from right (hot) to left (ground). Advance. Advance.


REVIEW slides




In your own words:


33

PPT slide 44 After a previously determined time interval lapses, a call is placed from another floor level or the close door button is activated by rider inside the car, the Door Close Power (DCP) microcomputer output is energized which in turn will pick up the Door Close (DC) relay. The DC relay will close the contacts to the door operator – giving the motor its feed which lets the door operator move as to close the doors. DO NOT Advance.


REVIEW slide




In your own words:


34

PPT slide 45 As per GAL the door operator will not allow the doors to close at a speed higher than 30Hz. When the door reaches its fully closed limit the contacts on the Door Close Limit (DCL) switch close - energizing the DCL relay which signals a DCL input to the controller, stopping the doors. Advance.


REVIEW slides




In your own words:


35

PPT slide 46 The Door Close Function Output (DCF) microcomputer output is now latched which will keep the DC relay energized through the elevators travel. Advance.


REVIEW slide




In your own words:


36

PPT slide 47 Read slide. [For each objective, briefly review what was learned in this module or ask participants to share what they have learned for each learning objective and briefly discuss as a class.] Advance.

REVIEW slides


ASK




In your own words:


37

PPT slide 48, 49, 50 Lets take a look at some of the key words we have defined as moved through this module. [Read slide. Discuss definitions as a group.] Advance. [Read slide. Discuss definitions as a group.] Advance. [Read slide. Discuss definitions as a group.] Advance.

REVIEW slides


ASK




In your own words:


38

PPT slide 51 Administer quiz.

REVIEW slides


ASK

instructor guide - transit training · instructor guide 216: elevator: ... the fire gib is the ......

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