Siemens SINUMERIK 840D sl Series Diagnostics Manual page 817

08/2005
Cause: When monitoring the conductivity of the cooling water, there is a fault in the wiring or in the
sensor.
Remedy: - check the wiring between the cooling system and the power stack adapter (PSA).
- check the function of the sensor to measure the conductivity.
249173 <location>Cooling system: Cooling water temperature, alarm threshold
exceeded
Reaction: NONE
Acknowledge: NONE
Cause: The cooling water intake temperature has exceeded the permanently set alarm threshold.
Remedy: Check the cooling system and the ambient conditions.
300000
Hardware drive bus: DCM not present
Definitions: The DCM (Drive Communication Master, an ASIC on the NCU module that takes control
of the drive bus) has not signaled when powering up the drive. In the 840D, a hardware
fault is the possible cause of this error. (For the FM-NC, an incorrect configuration is also
possible via the NCK MD 13010 DRIVE_LOGIC_NR).
Reactions: - NC 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.
Remedy: Please inform the authorized personnel/service department.
Exchange the NCU module.
Program Con- Switch control OFF - ON.
tinuation:
300001
Axis %1 drive number %2 not possible
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: On powering up the drives, the NCK-specific machine data 13010 DRIVE_LOGIC_NR
was checked for impermissible inputs. In the MD, a drive logic number is entered that can
be selected as required within the established limits (drive number 0 = "No drive avail-
able"). Numbers greater than 15 are not allowed, nor may the same number be used
more than once. The MD array must be configured without spaces, i.e. as soon as the
logical drive number 0 is selected once, it is necessary for the logical drive number 0 to be
entered in all MDs with a higher location index [p].
Reactions: - NC 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.
Remedy: Please inform the authorized personnel/service department. Check MD
DRIVE_LOGIC_NR for numbers greater than 15 or for gaps in the machine axis indices.
Program Con- Switch control OFF - ON.
tinuation:
© Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
Overview of Alarms
2-817