for internal use only / © siemens ag 2010. all rights reserved. extended environmental conditions...
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For internal use only / © Siemens AG 2010. All Rights Reserved.
Extended environmental conditions für MP 377 daylight readable
Customized Automation
Industry products for Oil and Gas
For internal use only / © Siemens AG 2010. All Rights Reserved.
Industry Sector
SIMATIC Customized AutomationExtended temperature range for MP 377 daylight readable
SIMATIC HMI
TEK - Temperature Extension Kit
SIMATIC HMI Panel
MP 377 15” Touch daylight readable
+
MP377 15” Touch daylight readable + TEK
for use in extended temperature range
=
For internal use only / © Siemens AG 2010. All Rights Reserved.
Industry Sector
TEK – Temperature Extension KitFunctions
The TEK controller at work
The figures show a schematic diagram of a control cabinet configuration with all devices required for full climate control of a SIMATIC HMI device.
The correct position of the components in the control cabinet and circulating air flow are essential for proper operation of the entire system.
TEK TEK TEK
For internal use only / © Siemens AG 2010. All Rights Reserved.
Industry Sector
TEK – Temperature Extension KitDimensioning actuators – heating and cooling
Selecting a heating element, fan and cooling element with the correct
capacity
Excel sheet helps to create a first approximation
Sample
Air circulation fan is mandatory
Calculation of heating and cooling power
Thermal operative outer surface of cubicle Cubicle dimensions
A 0,78 m2 Width 600 mmAmbient temperature HMI device Height 600 mm
minimal TPmin 0 oC Depth 120 mm
maximal TPmax 50 oC 0,936 m2
Ambient temperature cubicle Mounting cut-out
minimal TUmin -20 oC Width 400 mm
maximal TUmax 40 oC Height 400 mmPower loss in cubicle
minimal Pmin 35 W Operative outer surface A
maximal Pmax 50 W 0,776 m2
Heat transfer coefficient of cubicle
U 12,0 W/Km2
Required heating and cooling power
min. heating powerPH 617 W
min. cooling powerPK 0 W
Thermal operative outer surface of cubicle
Key / caption
W D
H
For internal use only / © Siemens AG 2010. All Rights Reserved.
Industry Sector
TEK – Temperature Extension KitFunctions
Functions Controlling of internal temperature by measuring of
temperatures At panel (2a and 2b) On surface of cabinet front (2c) Three-step control with
dynamic feedback (adaptive control) Humidity control by measuring of rel. humidity
(integrated sensor) (5) Switch on panel (4) as fast as possible in ‘automatic’
mode Climate controller working range from >= -20oC to
<= 80oC Cc switches on HMI panel >= 0oC Control by user in ‘manual’ mode (8, 9) Controlling of heating, cooling (3+10) Controlling of fan (7)
Out of range Cc just signalizes ‚OOR‘ from > +65oC
Caption:
1 - Front foilheating 2 - Pt100 sensor3 - Active cooling 4 - Panel5 – TEK climate controller 6 – LED 7 – Fan 8,9 – Push buttons10 – Heating 11 – Klimastutzen
ClimateController
11
Climate controller does not turn off HMI panel
5