EMSD5 AC Servo Manual
Chapter 8 Fault and Troubleshooting
85
47
Over voltage when main circuit in
powering up
Over voltage when main circuit in powering up
50
Encoder communication fault
Driver and encoder are not connected
51
Encoder communication
abnormal
After the encoder established the communication,
there appears the interrupt and disconnection.
52
Encoder battery voltage
insufficient alarm
Encoder battery voltage insufficient alarm, but
information did not lost and needs to be replaced as
soon as possible.
53
Encoder battery voltage error alarm
Encoder battery voltage error alarm, and storage
information has occurred error needing to reset
encoder.
54
Encoder error alarm
Encoder non-battery alarm, but need to reset
encoder again.
55
CRC check occurs errors for 3
times in a row
Encoder communication received data CRC
validation 3 consecutive errors.
56
MODBUS frame is too long.
MODBUS frame data received is too long
57
Abnormal MODBUS
communication format
Improper setting of communication parameters or
incorrect address or value
58
Single turn position error
Single turn position offset stored by the drive
exceeds encoder resolution
59
Encoder reporting CF error
Encoder continuously reports CF domain error and
is needed reset encoder