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10 Fault elimination
Maschinenfabrik Reinhausen GmbH 2021
157
6796573/02 EN
MSENSE
®
VAM
10 Fault elimination
This chapter describes how to rectify simple operating faults.
10.1 General faults
Characteristics/details
Cause
Remedy
No function
▪ Device not starting
No voltage supply
Check the voltage supply
Fuse tripped
Contact Maschinenfabrik Reinhausen GmbH
No function
▪
ERR
LED of the CPU assem-
bly lights up
Rotary switch of CPU assembly
moved
Correct position of rotary switch:
▪ 0 position
▪ RUN position
Configuration error
Contact Maschinenfabrik Reinhausen GmbH
Relays chatter
High EMC load
Use shielded cables or external filters
Poor grounding
Check the functional ground
Table 65: General faults
10.2 Event messages
Event
Color
code
Definition
Remedy
VAM: Recording run-
ning
Gray
The recording starts at the beginning of
the tap-change operation and ends when
the vibro-acoustic data record is stored.
Wait until the recording is complete.
VAM: Recording not
possible
Yellow
Recording is not possible if the tap-
change operation is invalid or there is a
sensor error.
Check the function and wiring of the sen-
sor, the tap position capture, the K1/K2
response contacts and the device config-
uration.
VAM: Recording be-
ing analyzed
Gray
Recordings are being analyzed. Record-
ings are being analyzed. Results will be
available after the analysis.
Wait until the analysis is finished.
VAM: Sensor signal
invalid
Yellow
Sensor data invalid.
Check the function and wiring of the sen-
sor.
VAM: Anomalies in
the switching pattern
Yellow
A switching pattern anomaly was de-
tected by the monitoring system when
evaluating the vibro-acoustic signals.
Check the error details and evaluation
and send them to MR Service.
VAM: Evaluation not
possible
Yellow
The vibro-acoustic signals cannot be an-
alyzed due to additional influences.
Verify that the sensor is positioned cor-
rectly and avoid signal interruptions. Ex-
port the error details and evaluation and
send them to MR Service.
Table 66: Event messages
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