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

For internal use only / © Siemens AG 2010. All Rights Reserved.

Extended environmental conditions für MP 377 daylight readableThank you for your attention!