Rockwell-automation 837E Solid-State Temperature Sensors Manual de usuario descargar pdf (Pagina 27)

837E Solid-State Temperature Sensors User Manual

Technical Data

Pub #75054-004-08, March 2013 25

Technical Data

Display Version

Power Supply

Supply voltage

• DC voltage version

12…30 V DC

Current consumption

• Without load < 60 mA, with reverse polarity protection

Power supply failure

• Behavior in case of overvoltage (> 30 V)

The device works continuously up to 34V DC without any damage. No damage is caused

to the device in case of a short-term overvoltage up to 1 kV (as per EN 61000-4-5). If the

supply voltage is exceeded, the properties specified are no longer guaranteed.

• Behavior in case of undervoltage

If the supply voltage drops below the minimum value, the device switches off (status as

if not supplied with power = switch open).

Output

Switching capacity

• Switch status ON: I

250 mA

• Switch status OFF: I

1 mA

• Switching cycles: > 10,000,000

• Voltage drop PNP: 2 V

• Overload protection

Automatic load testing of switching current; output is switched off in case of

overcurrent, the switching current is tested again every 0.5 sec.; max. capacitance load:

14 F for max. supply voltage (without resistive load).

Load (analog output)

•Max. (V

supply

- 6.5 V) / 0.022 A

Signal on alarm

• Analog output: 3.6 mA or 21.0 mA adjustable

(if setting 21.0 mA the output is 21.5 mA)

• Switch outputs: in safe state (switch normally open)

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Rockwell-automation 837E Solid-State Temperature Sensors Manual de usuario Pagina 27