BG 5195 BEN / A (2011-05) TPG261.oi 63
Test of the relays of the TPG 261. The program tests
their switching function.
Caution
Caution: The relays switch irrespective of the
pressure
Starting a test program may cause unwanted
effects in connected control systems.
Disconnect all sensor and control system
lines to ensure that no control commands or
messages are triggered by mistake.
The relays switch on and off cyclically. The switching
operations are indicated optically and can be heard.
The contacts of the switching functions 1 … 4 are con-
nected to the relay connector (→ 22), the contacts of
the error relay to the control connector (→ 21) on the
rear of the housing. Check their function with an ohm-
meter.
Test sequence
The test runs automatically one
time:
Ö All relays deactivated
Ö Switching function relay 1
Ö Switching function relay 2
:
Ö No function
I/O test
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