ProNet Plus Series AC Servo User's Manual
Motor power line U overcurrent
Mechanical stuck or motor power line U phase sequence is
wrong.
Motor power line V overcurrent
Mechanical stuck or motor power line V phase sequence is
wrong.
Motor power line W overcurrent
Mechanical stuck or motor power line W phase sequence
is wrong.
Nikon encoder temperatur is too
high
Nikon Encode internal Temperature (unit: ℃)
The parameter setting of servo drive does not match the
servomotor.
The parameter setting of servo drive does not match the
servomotor.
Absolute encoder multiturn
information error
Absolute encoder multiturn information is faulty.
Absolute encoder multiturn
information overflow
Absolute encoder multiturn information overflow.
Battery voltage below 2.5V
Absolute encoder multiturn information is lost.
Battery voltage below 3.1V
Battery voltage is too low.
The position of the encoder was
changed.
Not connect the battery, the battery voltage is low, or the
encoder had been damaged.
Serial encoder communication
overtime
Encoder disconnected; encoder signal disturbed; encoder
error or encoder decoding circuit error.
Absolute encoder overspeed alarm
detected
Absolute encoder multiturn information may be faulty.
Error reasons:
1.The battery is not connected or the battery voltage is
insufficient.
2.The power supply to servo drive is not turned ON when
the battery voltage is normal, or the servomotor running
acceleration is too high due to external reason.
Absolute state of serial encoder
error
Encoder or the encoder decoding circuit is faulty.
Serial encoder calcaution error
Encoder or the encoder decoding circuit is faulty.
Parity bit or end bit in serial encoder
control domain error
Encoder signal is disturbed or the encoder decoding circuit
is faulty.
Serial encoder communication data
checking error
Encoder signal is disturbed or the encoder decoding circuit
is faulty.
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