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9 Faults and alarms
When a fault or alarm message is activated, it is displayed both on the simple operator control panel
(PMU) and on the OP1S user-friendly operator control panel (see also Section 7.2, Operator control
panels).
An alarm stops being displayed immediately the cause of the alarm signal has been eliminated.
A fault message must be cancelled by pressing the P key on the PMU or Reset key on the OP1S (panel
must be in "Operational display" status) as soon as the cause has been eliminated.
NOTE
Setting parameters when fault or alarm message is active
On the PMU:
You can shift an active fault message or alarm "to the background" by pressing the P key and
Higher key simultaneously on the PMU.
If you do not press any key on the PMU within a 30 s period, the fault message or active alarm in
the background is automatically displayed again.
You can fetch a message back to the foreground earlier by pressing the P key and Lower key
simultaneously on the PMU when the parameter number level is selected.
On the OP1S:
You can set parameters normally even if a fault message or alarm is active.
9.1
Fault messages
9.1.1
General information about faults
Fault message display:
On the PMU: F (fault) and a three-digit number. The red LED (Fault) lights up.
On the OP1S: On bottom line of operational display: The red LED (Fault) lights up.
Only one current fault message can be displayed at a time, i.e. other simultaneously active faults are
ignored.
Many fault messages (see List of Fault Messages) can only be active in certain operating states.
The system responses to a fault are as follows:
•
The armature current is reduced, the firing pulses are disabled and the SIMOREG unit switches to
operating state o11.0 (fault)
•
Fault message is displayed on the operator panel (PMU, OP1S)
•
B0106 ( = status word 1, bit 3) is set and B0107 cancelled (see also alarm bits for special faults such
as undervoltage, overtemperature, external faults, etc.)
•
The following parameters are refreshed:
r047
fault diagnostic memory
(The displayed values are decimal. For bit-serial evaluation, the values must be
converted from decimal to binary notation, e.g. to be able to determine the
relevant terminal in the case of F018)
r049
Fault time
r947
fault memory, see also r947 in Section 11, Parameter List
r949
fault value
(The displayed values are decimal. For bit-serial evaluation, the values must be
converted from decimal to binary notation, e.g. to be able to determine the
Siemens Energy & Automation
SIMOREG DC Master Base Drive Panel Operating Instructions
9-1
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