User Manual

4 Faults and alarms
4.2 List of faults and alarms
SINAMICS G120 CU230P-2 Control Units
790 List Manual, 04/2018, A5E33838102
Remedy: - reduce the motor load.
- check the ambient temperature and the motor ventilation.
- check the wiring and the connection of the PTC or bimetallic NC contact.
See also: p0604, p0605, p0612, p0625, p0626, p0627, p0628
A07012 (N) Drive: Motor temperature model 1/3 overtemperature
Message class: Motor overload (8)
Reaction: NONE
Acknowledge: NONE
Cause: The motor temperature model 1/3 identified that the alarm threshold was exceeded.
Hysteresis:2K.
Alarm value (r2124, interpret decimal):
200:
Motor temperature model 1 (I2t): temperature too high.
300:
Motor temperature model 3: temperature too high.
See also: r0034 (Motor utilization thermal), p0605 (Mot_temp_mod 1/2/sensor threshold and temperature value),
p0611 (I2t motor model thermal time constant), p0612 (Mot_temp_mod activation), p0613 (Mot_temp_mod 1/3
ambient temperature)
Remedy: - check the motor load and if required, reduce.
- check the motor ambient temperature.
- check activation of the motor temperature model (p0612).
Motor temperature model 1 (I2t):
- check the thermal time constant (p0611).
- check alarm threshold.
Motor temperature model 3:
- check the motor type.
- check alarm threshold.
- check the model parameters.
See also: r0034 (Motor utilization thermal), p0605 (Mot_temp_mod 1/2/sensor threshold and temperature value),
p0611 (I2t motor model thermal time constant), p0612 (Mot_temp_mod activation)
A07014 (N) Drive: Motor temperature model configuration alarm
Message class: Motor overload (8)
Reaction: NONE
Acknowledge: NONE
Cause: A fault has occurred in the configuration of the motor temperature model.
Alarm value (r2124, interpret decimal):
1:
All motor temperature models: It is not possible to save the model temperature
See also: p0610 (Motor overtemperature response)
Remedy: - set the response for motor overtemperature to "Alarm and fault, no reduction of I_max" (p0610 = 2).
See also: p0610 (Motor overtemperature response)
A07015 Drive: Motor temperature sensor alarm
Message class: External measured value / signal state outside the permissible range (16)
Reaction: NONE
Acknowledge: NONE
Cause: An error was detected when evaluating the temperature sensor set in p0601.
With the fault, the time in p0607 is started. If the fault is still present after this time has expired, then fault F07016 is
output; however, at the earliest, 50 ms after alarm A07015.
Possible causes:
- wire breakage or sensor not connected (KTY: R > 2120 Ohm, PT1000: R > 2120 Ohm).
- measured resistance too low (PTC: R < 20 Ohm, KTY: R < 50 Ohm, PT1000: R < 603 Ohm).