Siemens SINUMERIK 840Di Diagnostic Manual page 419

11/2006
25201 Axis %1 drive fault
Parameters: %1 = Axis name, spindle number
Definitions: The drive signals a serious fault of status class 1 (ZK1). The exact cause of the fault can be recognized
by evaluating the following drive alarms which are output in addition:
Alarm 300500, alarms 300502 - 300505, alarm 300508, alarm 300515, alarm 300608, alarm 300612,
alarm 300614, alarms 300701 - 300761, alarm 300799.
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY (channel not
ready).
Reaction: Mode group not ready.
The NC switches to follow-up mode.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Channel not ready.
Remedy: Evaluation of the drive alarms listed above.
Program Clear alarm with the RESET key in all channels of this mode group. Restart part program.
Continuation:
25202 Axis %1 waiting for drive
Parameters: %1 = Axis name, spindle number
Definitions: Drive group error (self-clearing).
Reaction: Interface signals are set.
Alarm display.
Remedy: Wait for the drive. 25202 reveals similar problems to alarm 25201 (see this alarm). The alarm is active
continuously during power-up if the drive does not communicate (e.g. Profibus connector removed).
Otherwise, the alarm is active only briefly and is replaced by alarm 25201 after an internal timeout in
the event of a permanent problem.
Program Alarm display showing cause of alarm disappears. No further operator action necessary.
Continuation:
26000 Axis %1 clamping monitoring
Parameters: %1 = Axis name, spindle number
Definitions: The clamped axis is to be pushed out of its setpoint position. The permissible difference is defined in
the axis-specific machine data 36050 CLAMP_POS_TOL.
Clamping of an axis is activated with the axis-specific interface signal DB 31 - 48, DBX 2.3: "Clamping
process active".
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY (channel not
ready).
Reaction: Mode group not ready.
The NC switches to follow-up mode.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Channel not ready.
Remedy: Determine the position deviation to the setpoint position and, depending on the results, either increase
the permissible tolerance in the MD or mechanically improve the clamping (e.g. increase clamping
pressure).
Program Clear alarm with the RESET key in all channels of this mode group. Restart part program.
Continuation:
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
Overview of Alarms
NCK alarms
2-419