10.99 Faults and Alarms
Siemens AG 6SE7087-6KP50
SIMOVERT MASTERDRIVES Operating Instructions 12-13
12.2 Alarms
The alarm message is periodically displayed on the PMU by A = alarm/
alarm message and a 3-digit number. An alarm cannot be
acknowledged. It is automatically deleted once the cause has been
eliminated. Several alarms can be present. The alarms are then
displayed one after the other.
When the converter is operated with the OP1S operator control panel,
the alarm is indicated in the lowest operating display line. The red LED
additionally flashes (refer to the OP1S operating instructions).
Number / Alarm Cause Counter-measure
A001
Time slot overflow
The computing time work load is too high - Reduce pulse frequency
- Calculate individual function blocks in slower
time slots (parameter U950 ff.)
A002
SIMOLINK start alarm
Start of the SIMOLINK ring is not functioning. - Check the fiber-optic cable ring for
interruptions
- Check whether there is an SLB without
voltage in the ring
- Check whether there is a faulty SLB in the
ring
A003
Drive not synchronous
Although synchronization has been activated,
the drive is not synchronous.
Possible causes are:
- Poor communication connection (frequent
telegram failures)
- Slow bus cycle times (in the case of high bus
cycle times or synchronization of slow time
slots, synchronizing can last for 1-2 minutes in
the worst case).
- Incorrect wiring of the time counter (only if
P754 > P746 /T0)
SIMOLINK (SLB):
- Check r748 i002 and i003 = counters for
CRC faults and timeout faults
- Check the fiber-optic cable connection
- Check P751 on the dispatcher (connector
260 must be softwired); Check P753 on the
transceiver (corresponding SIMOLINK
connector K70xx must be softwired).
A005
Couple full
The closed-loop electronic system of
MASTERDRIVES MC consists of two
microprocessors. Only a limited number of
couple channels are provided for transferring
data between the two processors.
The alarm displays that all couple channels
between the two processors are busy. An
attempt has, however, been made to
interconnect another connector requireing a
couple channel.
None
A014
Simulation active alarm
The DC link voltage is not equal to 0 when the
simulation mode is selected (P372 = 1).
- Set P372 to 0.
- Reduce DC link voltage (disconnect the
converter from the supply)
A015
External alarm 1
Parameterizable external alarm input 1 has
been activated.
Check
- whether the cable to the corresponding
digital input has been interrupted.
- parameter P588 Src No Ext Warn1
A016
External alarm 2
Parameterizable external alarm input 2 has
been activated.
Check
- whether the cable to the corresponding
digital input has been interrupted.
- parameter P589 Src No Ext Warn2
A017
SAFE OFF alarm
active
SAFE OFF is detected in the READY states. See F017 for causes/counter-measures.
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