Siemens SINUMERIK 840D sl Series Diagnostics Manual page 816

Overview of Alarms
249153 <location>Cooling system: The water flow too low
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: The drive converter cooling system signals that the water flow is too low.
- after the ON command, the feedback signal has not been received within the selected
starting time (p0260).
- in operation, the feedback signal has failed for longer than the permitted failure time
(p0263).
See also: p0260, p0263, r0267
Remedy: - check the wiring between the cooling system and the input terminal (terminal module).
- check the external control unit for the cooling system.
249154 <location>Cooling system: Water has leaked
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: The leakage water monitoring function has responded.
See also: r0267
Remedy: - check the cooling system for leaks in the cooling circuit.
- check the wiring of the input terminal (terminal module) used to monitor the leakage
water.
249155 <location>Cooling system: Power stack adapter, firmware version too
old
Reaction: OFF2
Acknowledge: POWER ON
Cause: The firmware version in the power stack adapter (PSA) is too old and does not support any
water cooling.
Remedy: Upgrade the firmware version.
249156 <location>Cooling system: Cooling water temperature, fault threshold
exceeded
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: The cooling water intake temperature has exceeded the permanently set fault threshold.
Remedy: Check the cooling system and the ambient conditions.
249170 <location>Cooling system: Alarm occurred
Reaction: NONE
Acknowledge: NONE
Cause: The cooling system signals a general alarm.
Remedy: - check the wiring between the cooling system and the input terminal (terminal module).
- check the external control unit for the cooling system.
249171 <location>Cooling system: Conductivity has exceeded the alarm
threshold
Reaction: NONE
Acknowledge: NONE
Cause: The conductivity of the cooling water has exceeded the selected alarm threshold
(p0269[1]).
See also: p0266
Remedy: Check the device to de-ionize the cooling water.
249172 <location>Cooling system: Conductivity actual value is not valid
Reaction: NONE
Acknowledge: NONE
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SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
© Siemens AG, 2005. All rights reserved
08/2005