Alarms - Siemens 6SE7087-8KN50 Instructions De Service

10.2006
12.2

Alarms

Number / Alarm Cause
A001 The calculating time work load is too high.
Time slot overflow a) At least 3 failures of time slots T6 or T7 (see
also parameter r829.6 or r829.7)
b) At least 3 failures of time slots T2, T3, T4 or
T5 (see also parameter r829.2 to r829.5)
A002 Start of the SIMOLINK ring is not functioning.
SIMOLINK start alarm
A003 Although synchronization has been activated,
the drive is not synchronous.
Drive 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)
A004 Startup of the 2nd SIMOLINK ring does not
function.
Alarm startup of 2nd
SLB
A005 The closed-loop electronic system of
MASTERDRIVES MC consists of two
Couple full 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.
A014 The DC link voltage is not equal to 0 when the
simulation mode is selected (P372 = 1).
Simulation active alarm
A015 Parameterizable external alarm input 1 has
been activated.
External alarm 1
Siemens AG 6SE7087-7KN50
SIMOVERT MASTERDRIVES
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).
Operating Instructions
Counter-measure
- Reduce pulse frequency
- Calculate individual function blocks in slower
time slots (parameter U950 ff.)
- 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
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).
- Check the fiber optic cable ring for any
disconnections
- Check whether an SLB in the ring is without
voltage
- Check whether an SLB in the ring is faulty
None
- Set P372 to 0.
- Reduce DC link voltage (disconnect the
converter from the supply)
Check
- whether the cable to the corresponding
digital input has been interrupted.
- parameter P588 Src No Ext Warn1
Faults and Alarms
12-13