Faults and Alarms
10.2001
6SE7087-6JP60
Siemens AG
13-4
Operating Instructions
SIMOVERT MASTERDRIVES
Number / Fault
Cause
Counter-measure
F018
F set fly
The found set frequency could not be
implemented. Reasons:
- Additional setpoint 2 too high
- Speed actual-value at standstill negative
(signal ripple) and negative direction of
rotation locked.
- Check additional setpoint 2
- Release negative directions of rotation with
low maximum speed.
F019
Motor not found
During flying restart without tachometer:
Search in both directions of rotation not
possible (one direction blocked) and motor has
not been found.
Power up after coasting.
Possibly increase P525 Fly Search Amps.
Enable both directions of rotation (P571,
P572)
F020
Motor temperature
The motor temperature limit value has been
exceeded.
r949 = 1 limit value of motor temperature
exceeded
r949 = 2 short-circuit in the cable to the motor
temperature sensor or sensor defective
r949 = 4 wire break in the cable to the motor
temperature sensor or sensor defective
r949 = 5 wire break and limit value exceeded
Check the motor (load, ventilation, etc.). The
actual motor temperature can be read in r009
Motor Temperature.
Check P381 Mot Tmp
Fault - check the KTY84 input at connector
-X103:29,30, or X104:29,30 (Compact PLUS)
for short-circuit.
F021
Motor I2t
Parameterized limit value of the I2t monitoring
for the motor has been exceeded.
Check: P383 Mot Tmp T1
F023
Inverter temperature
The limit value of the inverter temperature has
been exceeded.
Alarm: (r949):
Bit0 Inverter overtemperature
Bit1 Wire break of cable to
temperature sensor
Bit4 Number of the temperature sensor
Bit5
Bit6
Bit8 Multiparallel circuit: Slave number
Bit9
Bit10
Examples:
r949 = 1: Limit value of inverter temperature
has been exceeded.
r949 = 2: Sensor 1: wire break of sensor cable
or sensor defective
r949 = 18: Sensor 2: wire break of sensor
cable or sensor defective
r949 = 34: Sensor 3: wire break of sensor
cable or sensor defective
r949 = 50: Sensor 4: wire break of sensor
cable or sensor defective.
-
Measure the air intake and ambient
temperature.
- Observe the derating curves at theta >50°C
(Compact PLUS) or 40°C.
Check:
- whether the fan -E1 is connected and is
rotating in the correct direction
- that the air entry and discharge openings are
not restricted
- temperature sensor at -X30.
F025
UCE Ph. L1
UCE upper switch (Compact PLUS) / or UCE
has tripped in phase L1
Check:
- phase L1 for short-circuit or ground fault
(-X2:U2 - including motor)
- that CU is correctly inserted
- that the switch for "SAFE STOP" (X9/5-6) is
open (only for units with order No. ...-11,
...-21,...-31, ...-61).
Aotewell Ltd
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Industry Automation
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