Siemens SINUMERIK 840D Diagnostics Manual page 364

1 Alarms
Reactions:
Remedy:
Program Continuation:
25105
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
25110
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
1-364
- NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
Please inform the authorized personnel/service department. When referencing the active
position actual value encoder, the actual value system of the inactive encoder is set to the
same reference point value as soon as phase 3 has been concluded. A later positional dif-
ference between the 2 actual value systems can have occurred only as the result of an
encoded defect or a mechanical displacement between the encoders.
• Check the encoder signals, actual value cable, connectors.
• Check the mechanical fastenings (displacement of the measuring head, mechanical
twisting possible).
• Increase the axis-specific MD 36500 ENC_CHANGE_TOL.
Program continuation is not possible. The program must be aborted with "Reset", then
program execution can be reinitiated with NC Start, if necessary at the interruption point
after "Block search with/without calculation".
Clear alarm with the RESET key. Restart part program
Axis %1 measuring systems differ considerably
%1 = Axis name, spindle number
The two measuring systems differ considerably, i.e. the cyclically monitored actual value
difference between the two measuring systems is greater than the associated tolerance
value set in the machine data $MA_ENC_DIFF_TOL. This can only occur when both
measuring systems are active ($MA_NUM_ENCS = 2) and referenced. The alarm can be
reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY (channel not ready).
- 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.
Please inform the authorized personnel/service department. Check machine data for the
active, selected encoders. Check the machine data relating to encoder
($MA_ENC_DIFF_TOL) tolerance.
Clear alarm with the RESET key in all channels of this mode group. Restart part program.
Axis %1 selected encoder not available
%1 = Axis name, spindle number
The selected encoder does not correspond to the maximum number of encoders in the
axis-specific machine data 30200 NUM_ENCS, i.e. the 2nd encoder does not exist.
- Alarm display.
Please inform the authorized personnel/service department. Enter the number of actual
value encoders used for this axis in the machine data 30200 NUM_ENCS ("Number of
encoders").
Input value 0: Axis without encoder -> e.g. spindle
Input value 1: Axis with encoder -> default setting
Input value 2: Axis with 2 encoders -> e.g. direct and indirect measuring system
Clear alarm with the Delete key or NC START.
 Siemens AG, 2004. All rights reserved
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA), 10.04 Edition
10.04