MS220VA and MSR220VA
11660-0701-03-GB
Page
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www.ziehl.de
Attention!
Safety circuits according to EN 60204/EN 62061.
The tripping devices must not be used alone for functions, where an automatic
Restart must be prevented.
16
Proof testing of the safety functions
•
The safety function shall be tested at regular intervals. It is recommended to carry out the proof-test
once a year. Depending on the zone risk, tests should be conducted more frequently. A fault is
recognized by the safety test. A fault between safety tests could cause loss of protection.
•
The safety function must be tested by interrupt the thermistor circuit wire at terminals T1, T2.
•
The short circuit monitoring function must be tested by bridging the thermistor circuit wires at terminals
T1, T2.
•
The safety function must be tested by changing the resistance from 1500 Ohm to 4000 Ohm at
terminals T1, T2.
•
The function of the electronic interlock must be tested additionally.
•
If an error is detected no restart must be induced until the error is cleared.
17
Maintenance and repair
The devices are maintenance-free. Only the manufacturer may accomplish repairs. We recommend testing
within the regular maintenance intervals of the plant, where the device is used. EN 60079-17 is to be
observed.
You’ll find this and other user manuals in the internet under
www.ziehl.com
ZIEHL industrie
– elektronik GmbH + Co KG
Daimlerstr. 13
74523 Schwaebisch Hall
Germany
Fon + 49 791 504-0 [email protected] www.ziehl.de
