11 TROUBLESHOOTING
This chapter describes problems that might be encountered, their causes, and
possible methods for eliminating them. It is intended as a general orientation
only, and in cases of doubt it is better to return the P631 to the manufacturer.
Please follow the packaging instructions in Section 5.1, (p. 5-2) when returning
equipment to the manufacturer.
Warning!
⚫
Only qualified personnel, familiar with the “Warning” page at the beginning of
this manual, may work on or operate this device.
Warning!
⚫
Before checking further, disconnect the P631 from the power supply.
The following instructions apply to surface-mounted cases:
Warning!
⚫
The local control panel is connected to processor module P by a plug-in
connecting cable. Remember the connector position! Do not bend the
connecting cable.
Problem
●
Lines of text are not displayed on the local control panel.
■
Check to see whether there is supply voltage at the device connection
points.
■
Check to see whether the magnitude of the auxiliary voltage is correct.
The P631 is protected against damage resulting from polarity reversal.
●
The P631 issues an “Alarm” signal on LED H 3.
■
Identify the specific problem by reading out the monitoring signal
memory (see Section 6.11.6.2, (p. 6-26)). The table below lists possible
monitoring or warning indication (provided that a configuration setting
has been entered at SFMON: Fct. assign. warning), the faulty area,
the P631's response, and the mode of the output relay configured for
“Warning” and “Blocked/faulty”.
Key
●
–: No reaction and/or no output relay triggered.
●
Yes: The corresponding output relay is triggered.
●
Updating: The output relay configured for 'Warning' starts only if the
monitoring signal is still present.
Parameter Address
Self-monitoring
SFMON: Fct. assign. warning
021 030
[spacer]
SFMON: Mon.sig. retention
021 018
P631
P631/EN M/R-11-C // P631-310-650 11-1
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