Siemens SINUMERIK 840D Series Diagnostics Manual page 22

1 Alarms
2130
Definitions:
Reactions:
Remedy:
Program Continuation:
2140
Definitions:
Reactions:
Remedy:
Program Continuation:
2190
Definitions:
Reactions:
Remedy:
Program Continuation:
2192
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
1-22
5V/24V encoder or 15V D/A converter undervoltage
A failure has occurred in the power supply (FM357-2) to the encoder (5V/24V) or D/A con-
verter (+/-15V).
- NC not ready.
- Mode group not ready, also effective for single axes
- NC Start disable in this channel.
- NC Stop on alarm.
- The NC switches to follow-up mode.
- Alarm display.
- Interface signals are set.
- Axes of this channel must be re-referenced.
Please inform the authorized personnel/service department. Check the encoder and
cable for short-circuits (the fault should not occur when you remove the cable). Check the
power feeder line.
Switch control OFF - ON.
The actual service switch position forces a SRAM to be cleared at the next Power
On (general reset active)
The initialization switch is currently set to overall reset. This means that the module's
SRAM is deleted with the next module reset. The NC data memory is cleared during this
operation.
- Alarm display.
- NC not ready.
- Interface signals are set.
Reset initialization switch to zero.
Alarm display showing cause of alarm disappears. No further operator action
Hardware plug-in module for communication with the digitizer missing
MD $MN_ASSIGN_DIGITIZE_TO_CHAN was used to activate the digitizing function by
assigning it to a channel. The function requires a hardware module (RS-422 board
plugged into the NCU) for communication with the digitizing unit. This module was not
found when booting.
- Alarm display.
- Interface signals are set.
Please inform the authorized personnel/service department. Plug in communications
module or cancel channel assignment.
Switch control OFF - ON.
No NCU link module exists, MD %1 reset
%1 = String: MD identifier
An attempt was made to activate the NCU link functionality but the hardware is not avail-
able. The MD was reset. Only occurs with the NCU link system
- Alarm display.
- Interface signals are set.
- NC not ready.
- Channel not ready.
- NC Start disable in this channel.
- NC Stop on alarm.
Install the hardware module and activate the function again (MD).
Switch control OFF - ON.
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA) – 11.02 Edition
 Siemens AG, 2002. All rights reserved
11.02