Axis %1 Hardware Fault Of Passive Encoder; Axis %1 Pollution Of Measuring System; Axis %1 Pollution Of Passive Encoder - Siemens Sinamics S120 Diagnostic Manual

NCK alarms
25001

Axis %1 hardware fault of passive encoder

Parameters: %1 = Axis name, spindle number
Definitions: The signals from the currently inactive position actual value encoder are missing, or they are not of the same phase,
or they exhibit grounding/short-circuit.
For PROFIdrive only:
MD36310 $MA_ENC_ZERO_MONITORING >100 replaces the existing PowerOn alarm by the Reset alarm 25011.
MD36310 $MA_ENC_ZERO_MONITORING >100 replaces the existing Reset alarm by the Cancel alarm 25011.
Reaction: Alarm display.
Remedy: Please inform the authorized personnel/service department. Check measuring circuit connectors for correct contact-
ing. Check encoder signals and replace the encoder if faults are found. Switch off monitoring with the corresponding
interface signal DB380x DBX0001.5 / 1.6 = 0 (Position measuring system 1/2 ).
Monitoring can be switched off by setting MD36310 $MA_ENC_ZERO_MONITORING[n] to 100 (n = encoder number:
1,2).
Program Clear alarm with the RESET key. Restart part program
Continuation:
25010

Axis %1 pollution of measuring system

Parameters: %1 = Axis name, spindle number
Definitions: The encoder used for position control sends a contamination signal (only in measuring systems with contamination
signal).
The alarm can be reprogrammed in the MD11412 $MN_ALARM_REACTION_CHAN_NOREADY (channel not ready).
For PROFIdrive only:
MD36310 $MA_ENC_ZERO_MONITORING >100 returns the existing Reset alarm instead of the Power-on alarm
25000.
Reaction: Mode group not ready.
The NC switches to follow-up mode.
Channel not ready.
NC Start disable in this channel.
Axes of this channel must be re-referenced.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Channel not ready.
Remedy: Please inform the authorized personnel/service department. Check the measuring system in accordance with the
instructions given by the measuring device manufacturer.
Monitoring can be switched off by setting MD36310 $MA_ENC_ZERO_MONITORING[n] to 100 (n = encoder number:
1,2).
Program Teileprogramm neu starten.Clear alarm with the RESET key in all channels of this mode group. Restart part program.
Continuation:
25011

Axis %1 pollution of passive encoder

Parameters: %1 = Axis name, spindle number
Definitions: The encoder not used for position control sends a contamination signal (only in measuring systems with contamination
signal).
For PROFIdrive only:
MD36310 $MA_ENC_ZERO_MONITORING >100 returns the existing Reset alarm instead of the Power-on alarm
25001.
MD36310 $MA_ENC_ZERO_MONITORING >100 returns the existing Cancel alarm instead of the Reset alarm
25001.
Reaction: Alarm display.
346
Diagnostics Manual, 07/2010, 6FC5398-8BP40-0BA0
Alarms