Okuma Alarm-P 0754 VDU initialization failure
An error occurred in initialization of VDU(Vibration Detect Unit).
Axis name or none (spindle)
XX = Encoder link sequence number at the time of error detection
1: Network address setting
2: Request of basic information on communication
3: Change of communication version
4: Acquisition of device information
5: Parameter change
6: AT (auto) mode start
YY = Error content
1: Transmission start time over
2: Transmission finishes time over
3: Reception finishes time over
4: Abnormal response address
5: Abnormal response code
6: Parameter error
ZZZZ = Additional data
the encoder link error status C2ERR at the time of error detection appears.
If YY=1, 2, or 3,
the transferred frame information C2MTINF appears.
the network address of the responding device appears.
the received frame information C2RXINF appears.
the number of parameter that caused the alarm appears.
1 = Not all the necessary parameters are received.
2 = Basic information on communication is incompatible.
4 = Protocol version on communication is incompatible.
Probable Faulty Locations
– Encoder link cables
– VFA unit