Siemens SIMOVERT MASTERDRIVES Betriebsanleitung Seite 282

Faults and Alarms
Number / Fault Cause
F018 The found set frequency could not be
implemented. Reasons:
F set fly - Additional setpoint 2 too high
- Speed actual-value at standstill negative
(signal ripple) and negative direction of
rotation locked.
F019 During flying restart without tachometer:
Search in both directions of rotation not
Motor not found possible (one direction blocked) and motor has
not been found.
F020 The motor temperature limit value has been
exceeded.
Motor temperature
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
F021 Parameterized limit value of the I2t monitoring
for the motor has been exceeded.
Motor I2t
F023 The limit value of the inverter temperature has
been exceeded.
Inverter temperature
Alarm: (r949):
Bit0 Inverter overtemperature
Bit1 Wire break of cable to
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.
F025 UCE upper switch (Compact PLUS) / or UCE
has tripped in phase L1
UCE upper switch/
UCE Ph. L1
13-4
temperature sensor
Counter-measure
- Check additional setpoint 2
- Release negative directions of rotation with
low maximum speed.
Power up after coasting.
Possibly increase P525 Fly Search Amps.
Enable both directions of rotation (P571,
P572)
Check the motor (load, ventilation, etc.). The
current 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.
Check: P383 Mot Tmp T1
- Measure the air intake and ambient
temperature
(Observe minimum and maximum ambient
temperature!)
- Observe the derating curves at theta >45°C
(Compact PLUS type) or 40°C.
- On Compact PLUS units: ≥ 22 kW
acknowledgement is only possible after
1 minute
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
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).
6SE7087-6JP60
Operating Instructions SIMOVERT MASTERDRIVES
02.2008
Siemens AG