Siemens SINAMICS S Series - A49171 Cooling system: Conductivity has exceeded the alarm threshold; A49172 Cooling system: Conductivity actual value is not valid; A49173 Cooling system: Cooling liquid temperature has exceeded the alarm threshold; F49200 Excitation group signal fault

List of faults and alarms
Faults and Alarms
3-1749
© Siemens AG 2007 All Rights Reserved
SINAMICS S List Manual (LH1), 07/2007
A49171 Cooling system: Conductivity has exceeded the alarm threshold
Drive object: A_INF, B_INF, SERVO, S_INF, VECTOR
Reaction: NONE
Acknowledge: NONE
Cause: The conductivity of the cooling liquid has exceeded the selected alarm threshold (p0269[1]).
See also: p0261 (Cooling system, starting time 2), p0262 (Cooling system, fault conductivity delay time), p0266
(Cooling system, feedback signals, signal source)
Remedy: Check the device to de-ionize the cooling liquid.
A49172 Cooling system: Conductivity actual value is not valid
Drive object: A_INF, B_INF, SERVO, S_INF, VECTOR
Reaction: NONE
Acknowledge: NONE
Cause: When monitoring the conductivity of the cooling liquid, 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.
A49173 Cooling system: Cooling liquid temperature has exceeded the alarm threshold
Drive object: A_INF, B_INF, SERVO, S_INF, VECTOR
Reaction: NONE
Acknowledge: NONE
Cause: The cooling liquid intake temperature has exceeded the permanently set alarm threshold.
Remedy: Check the cooling system and the ambient conditions.
F49200 Excitation group signal fault
Drive object: VECTOR
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: The excitation sequence control signals a fault.
Fault value (r0949, hexadecimal):
Bit 0:
When powered-down or when powering-down the excitation, the signal "excitation ready to power-up feedback sig-
nal" was not received within the monitoring time.
Bit 1:
After an ON command, the signal "excitation ready feedback signal" was not received within the monitoring time.
Bit 2:
After the pulses were enabled, the signal "excitation operational feedback signal" was not received within the moni-
toring time.
Bit 3:
The "excitation group signal fault" signal is present.
Remedy: - check the excitation.
- check commands, feedback signals and BICO interconnections.
A49201 (F) Excitation, group signal alarm
Drive object: VECTOR
Reaction: NONE
Acknowledge: NONE
Cause: The "excitation group signal alarm" signal is present.
Remedy: Check the excitation equipment.
Reaction upon F: NONE
Acknowl. upon F: IMMEDIATELY