The display driver device of Siemens 6RA8 */alarm displays the fault situation by issuing corresponding faults and/or alarms. The way to display faults/alarms is as follows: • Display through the fault and alarm buffer of PROFIBUS. • Display through debugging software running online

Communication failure between F60062 (N, A) and voltage detection

Signal importance:% 1 Driver: DC_CTRL Response: OFF2 (OFF1, OFF3, none) Response: Immediate cause: Communication failure or interruption between the device and one of the two voltage detections.

Fault value (r0949, decimal):

1: Armature voltage detection

2: Excitation voltage detection annotation: r50047 [1]: Count of armature CRC errors r50047 [2]: Count of armature communication errors r50047

[3] Count of excitation CRC errors r50047

[4] Counting and handling of excitation communication errors: Re power on all components (power-off/power on)

What happens when a malfunction occurs? • Trigger the corresponding fault response. Set the status signal ZSW1.3. Record the fault in the fault buffer. How to troubleshoot? • Eliminate the cause of the malfunction. • Respond to faults. What happens when an alarm occurs? Set the status signal ZSW1.7. The alarm is recorded in the alarm buffer. How to eliminate alarms? The alarm will be automatically cancelled. When the cause no longer exists, it will clear itself.