Diagnostics
￭
Fault and warning messages, data logging
See chapter Fault tracing (page 649).
￭
Signal supervision
Three signals can be selected to be supervised by this function. Whenever a
supervised signal exceeds or falls below predefined limits, a bit in 32.1 is activated,
and a warning or fault generated. The contents of the message can be edited on
the control panel by selecting Menu - Settings - Edit texts.
The supervised signal is low-pass filtered. The supervision operates on a 2 ms time
level. The configuration parameters are scanned for changes on a 10 ms time level.
Settings and diagnostics
Parameter group: 32 Supervision (page 380).
Events: A8B0 Signal supervision (page 688), A8B1 Signal supervision 2 (page 688),
A8B2 Signal supervision 3 (page 688), 80B0 Signal supervision (page 670), 80B1 Signal
supervision 2 (page 670) and 80B2 Signal supervision 3 (page 670).
￭
Maintenance timers and counters
The program has six different maintenance timers or counters that can be
configured to generate a warning when a pre-defined limit is reached. The contents
of the message can be edited on the control panel by selecting Menu - Settings -
Edit texts.
The timer/counter can be set to monitor any parameter. This feature is especially
useful as a service reminder.
There are three types of counters:
• On-time timers. Measures the time a binary source (for example, a bit in a
status word) is on.
• Signal edge counters. The counter is incremented whenever the monitored
binary source changes state.
• Value counters. The counter measures, by integration, the monitored
parameter. A warning is given when the calculated area below the signal peak
exceeds a user-defined limit.
Settings and diagnostics
Parameter group: 33 Generic timer & counter (page 389).
Program features 137
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