Siemens SINUMERIK 808D ADVANCED Diagnostic Manual page 451

A7991: Motor data
identification activated
A30016: Load supply
switched off
A30031: Hardware
current limiting in phase
U
A31411: Absolute
encoder signals
internal alarms
A31412: Error bit set in
the serial protocol
A52900: Failure during
data copying
Diagnostics Manual
Diagnostics Manual, 08/2013, 6FC5398-6DP10-0BA1
The motor data ident. routine is activated.
The motor data identification routine is carried
out at the next power-on command.
The DC link voltage is too low.
Hardware current limit for phase U
responded. The pulsing in this phase is
inhibited for one pulse period.
•
Closed-loop control is incorrectly
parameterized.
•
Fault in the motor or in the power cables.
•
The power cables exceed the maximum
permissible length.
•
Motor load too high.
•
Power unit defective.
Note:
Alarm A30031 is always output if, for a Power
Module, the hardware current limiting of
phase U, V or W responds.
The absolute encoder fault word includes
alarm bits that have been set.
The encoder sends a set error bit via the
serial protocol.
•
Copying is halted.
•
The SD card was plugged out.
•
The drive is not in the stop state.
SINAMICS V70 alarms
5.2 Common faults and alarms
The alarm automatically disappears after the
motor data identification routine has been
successfully completed.
If a POWER ON or a warm restart is performed
with motor data identification selected, the motor
data identification request will be lost. If motor
data identification is required, it will need to be
selected again manually following ramp-up.
•
Switch on the load supply.
•
Check the line supply if necessary.
Check the motor data. As an alternative, run a
motor data identification.
•
Check the motor circuit configuration (star-
delta)
•
Check the motor load.
•
Check the power cable connections.
•
Check the power cables for short-circuit or
ground fault.
•
Check the length of the power cables.
Replace the encoder.
•
Carry out a POWER ON (power off/on) for all
components.
•
Check that the encoder cables are routed in
compliance with EMC.
•
Check the plug connections.
•
Replace the encoder.
•
Re-plug in the SD card.
•
Make sure the drive is in the stop state.
451