Operating instructions

Vector Control Chassis Type Frequency Converter Faults and Alarms
SIEMENS AG 476 869 4070 76 J AB-74
SIMOVERT MASTERDRIVES Operating Instructions 11-17
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).
Alarm
number
Param.
No.
Bit No.
Cause Counter-measure
A001 r953
0
Calculating time
The CUVC board calculating time
utilization is too high
• Observe r829 CalcTimeHdroom
• Increase P357 Sampling Time or
• Reduce P340 Pulse Frequency.
A002 SIMOLINK start alarm Check
• the fiber-optic cable ring
• whether there is an SLB without voltage
in the ring
• whether there is a faulty SLB in the ring
• P741 (SLB Tlg OFF)
A014 r953
13
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
r953
14
External alarm 1
Parameterizable external alarm input
1 has been activated
Check
• Whether the cable to the corresponding
digital input is interrupted.
• Parameter P588 Src No Ext Warn1
A016 r953
15
External alarm 2
Parameterizable external alarm input
2 has been activated
Check
• Whether the cable to the corresponding
digital input is interrupted.
• Parameter P589 Src No Ext Warn2
A017 r954
0
SAFE OFF alarm active
The switch for blocking the inverter
pulses (X9 terminal 5-6) has been
opened (only for units with Order No.
...-11, ...-21,...-31,...-61).
Close switch X9 5-6 and thus release the
inverter pulses.
A020 r954
3
Overcurrent
An overcurrent condition has
occurred.
Check the driven load for an overload
condition.
• Are the motor and the converter
matched?
• Have the dynamic performance
requirements been exceeded?
A021
r954
4
Overvoltage
An overvoltage condition has
occurred.
Check the supply voltage.
The converter regenerates without
regeneration possibility.
Alarms