Operating instructions

Faults and Alarms Vector Control Chassis Type Frequency Converter
476 869 4070 76 J AB-74 Siemens AG
11-18 Operating Instructions SIMOVERT MASTERDRIVES
Alarm
number
Param.
No.
Bit No.
Cause Counter-measure
A022 r954
5
Inverter temperature
The threshold for initiating an alarm
has been fallen short of.
• Observe r833 Drive Tmp.
Measure intake air or ambient
temperature. Observe reduction curves
at ϑ >40 ºC .
Check:
• Whether the fan -E1 is connected and is
rotating in the correct direction.
• The air intake and discharge openings
for blockage.
• The temperature sensor at -X30.
A023
r954
6
Motor temperature
The parameterizable threshold for
initiating an alarm has been
exceeded.
Check the motor (load, ventilation, etc.). The
current temperature can be read in r009
Motor Tmp.
Check the KTY84 input at connector
X103:29,30 for short-circuit.
A024
r954
7
Motor movement
The motor has moved during motor
data identification in first start-up.
Lock the motor
A025 r954
8
I2t Inv.
If the instantaneous load condition is
maintained, then the inverter will be
thermally overloaded.
Motor load cycle exceeded! Check the
parameters:
P382 Motor Cooling
P383 Mot Tmp T1
P384 Mot Load Limits
A029 r954
12
I2t motor
The parameterized limit value for the
I2t monitoring of the motor has been
exceeded.
Motor load cycle is exceeded! Check the
parameters:
P382 Motor Cooling
P383 Mot Tmp T1
P384 Mot Load Limits
A033
r955
0
Overspeed
Bit 3 in r553 status word 2 of the
setpoint channel. The speed actual
value has exceeded the value of
maximum speed plus the set
hysteresis.
P804 Overspeed Hyst plus
P452 n/f(max, FWD Spd) or
P453 n/f(max,REV Spd) has been
exceeded.
Increase the parameter for the maximum
frequencies or reduce the regenerative load.
A034
r955
1
Setpoint/actual value deviation
Bit 8 in r552 status word 1 of setpoint
channel. The difference between
frequency setpoint/actual value is
greater than the parameterizable
value and the control monitoring time
has elapsed.
Check:
• Whether an excessive torque
requirement is present.
• Whether the motor has been
dimensioned too small.
Increase values P792 Perm Deviation Frq/
set/actual DevSpeed and
P794 Deviation Time