Siemens simovert masterdrives Operating Instructions Manual page 324

Faults and Alarms
Number / Alarm Cause
A016 Parameterizable external alarm input 2 has
been activated.
External alarm 2
A017 Safe Stop is detected in the READY states.
Safe Stop alarm active
A018 Signal amplitude
Resolver/encoder in the critical range.
Encoder adjustment
A019 Connection fault of the serial protocol on
multiturn encoders (SSI/Endat)
Encoder data serial
protocol
A020 The amplitude of an external encoder lies in
the critical range.
Encoder adjustment,
external encoder
A021 A fault has occurred during processing of the
serial protocol to an external code rotary
Encoder data of encoder (SSI- or Endat-Multiturn).
external multiturn
encoder faulty
A022 The threshold for tripping an alarm has been
exceeded.
Inverter temperature
A023 The parameterizable threshold (P380) for
tripping an alarm has been exceeded.
Motor temperature
A025 If the current load state is maintained, a
thermal overload of the converter occurs.
I2t converter
The converter will lower the max. current limit
(P129).
12-14
Counter-measure
Check
- whether the cable to the corresponding
digital input has been interrupted.
- parameter P589 Src No Ext Warn2
See F017 for causes/counter-measures.
See F051 for causes/counter-measures.
As a general rule, it is necessary to initialize
the starting position again => power OFF/ON
or switch to the drive settings and back
again!!!
If alarm A18 occurs in the"Ready" status (r001
= 009) while an encoder is in use, the
amplitude of the CD track signal is too small,
or the connection to CD_Track may be
interrupted, or an encoder without CD-Track is
in use.
In the case of an encoder without CD track,
the P130 must be correctly set.
Serial protocol is defective on multiturn
encoders. See F051 for causes/counter-
measures.
As a general rule, it is necessary to initialize
the starting position again => power OFF/ON
or switch to the drive settings and back
again!!!
Cause/remedies see F051
As a general rule, it is necessary to initialize
the starting position again => power OFF/ON
or switch to the drive settings and back
again!!!
Faulty serial protocol in the case of an external
multiturn encoder. Cause/remedies see F051
As a general rule, it is necessary to initialize
the starting position again => power OFF/ON
or switch to the drive settings and back again!!
- Measure intake air and ambient temperature.
- Observe derating curves at theta > 45°C
(Compact PLUS) or 40°C derating curves
- Check whether the fan is operating
- Check whether the air entry and discharge
openings are restricted.
Check the motor (load, ventilation, etc.). Read
off the current temperature in r009 Motor
Temperat.
- Reduce converter load
- Check r010 (Drive Utiliz)
6SE7087-7KN50
Operating Instructions SIMOVERT MASTERDRIVES
10.2006
Siemens AG