CP-7[732-742]-series Mechanical Reference(2.9E) - 第224页

AC Servopack AC Servopack Alarm Alarm Name Status Cause Check Item Remedy A.85 Encoder Overspeed • Occurs at power ON or when motor is in operation. • Servopack defective. • Replace the Servopack. A.86 Encoder Overheated…

AC Servopack Check List for Troubleshooting

Alarm Alarm Name Status Cause Check Item Remedy

A.81 Absolute Encoder

Backup Error

• Occurs at power ON.

(Pn002.2 = 0)

When used as absolute

encoder.

• Occurs at power ON.

(Pn002.2=1)

• Turn ON the power supply to the

absolute encoder for the first

time.

• Both PG power supply (+5V)

from the Servopack and the

battery power supply are failed.

• Absolute encoder defective.

• Servopack defective.

• Servopack defective when used

as incremental encoder.

• Check that the absolute encoder

has been set up.

• Check that the power is supplied

to the encoder side.

• Encoder defective at alarm

occurrence even by setting up

the absolute encoder again.

• Servopack defective if nothing is

wrong in the above check.

• Check that the battery is

connected correctly.

• Check that the battery voltage is

not reduced to 2.7 V or less.

• Servopack defective if nothing is

wrong in the above check.

• Set up the encoder.

• Set up the encoder after

restoring the power supply to

the encoder (by replacing the

battery, etc.).

• Replace the encoder.

• Replace the Servopack.

NP1MT004E

A.82 Encoder

Checksum Error

• Occurs at power ON or

when motor is in

operation.

• Encoder defective.

• Servopack defective.

• Set up the encoder. Replace

the motor if the alarm occurs

frequently.

• Replace the Servopack.

A.83 Absolute Encoder

Battery Error

• Occurs at power ON.

(Pn002.2=0)

When used as absolute

encoder.

• Imperfect connection or

disconnection of battery.

• Battery voltage is reduced to the

specified value (2.7 V) or less.

• Servopack defective.

• Connect the battery properly.

• Replace the battery and turn

ON the encoder power supply again.

• Replace the Servopack.

A.84 Encoder Data

Error

• Occurs at power ON or

when motor is in

operation.

• Sensor in the encoder reads the

data improperly.

• Encoder malfunctions.

• Servopack defective.

• Turn ON the encoder power

supply again.

Replace the motor if the alarm

occurs frequently.

• Correct the wiring processing

around the encoder.

• Replace the motor if the alarm

occurs frequently.

• Replace the Servopack.

• Servopack defective when used

as incremental encoder.

• Occurs at power ON.

(Pn002.2=1)

Part 5 Chapter 2 Servo System Troubleshooting

Edition 2.6 5-2-8 CP-7 series Mechanical Reference

AC Servopack AC Servopack

Alarm Alarm Name Status Cause Check Item Remedy

A.85 Encoder

Overspeed

• Occurs at power ON or

when motor is in operation.

• Servopack defective. • Replace the Servopack.

A.86 Encoder

Overheated

• Occurs at power ON or

when motor is in operation.

• Encoder defective.

• Servopack defective.

• Encoder temperature exceeds

the specified value.

• Check the ambient temperature

for the motor exceeds 35°C?

• Check the motor wiring or

connector inserted status at the

motor side.

• Check the encoder wiring and the

connector inserted status at the

encoder side.

• Encoder defective.

• Check the encoder and motor

wiring to motors A and B, if it is a

multiaxis amp.

• Replace the motor.

• Replace the Servopack.

• Reduce the ambient

temperature of the motor to

35°C or less.

A.b1 Reference Speed

Input Read Error

• Occurs at power ON or

when motor is in operation.

• Servopack defective. • Replace the Servopack.

A.b2 Reference Torque

Input Read Error

• Occurs at power ON or

when motor is in operation.

• Servopack defective. • Replace the Servopack.

A.bF System Alarm • Occurs at power ON or

when motor is in operation.

• Servopack defective. • Replace the Servopack.

A.C1 Servo Overrun • Occurs at power ON. • Incorrect motor wiring.

• Incorrect encoder wiring.

• Encoder defective.

• Servopack defective.

• Manually correct the motor

wiring.

• Manually correct the encoder

wiring.

• Replace the motor.

• Replace the Servopack.

NP1MT005E

• Encoder defective (Initialization

polarity sensor data error)

• Check the encoder wiring and the

connector inserted status at the

encoder side.

A.C2

Phase Error • Occurs at power ON or

when motor is in operation.

• Servopack defective.

• Encoder defective.

• Incorrect encoder wiring.

• Replace the Servopack.

• Replace the motor.

• Manually correct the encoder

wiring.

Part 5 Chapter 2 Servo System Troubleshooting

Edition 2.6 5-2-9 CP-7 series Mechanical Reference

AC Servopack Check List for Troubleshooting

Alarm Alarm Name Status Cause Check Item Remedy

A.C5 Magnetic Polarity

Detection Error

• Power supply to the main circuit

is turned off.

• Incorrect encoder wiring.

• Encoder defective.

• Servopack defective.

• Check connections around the

power supply to the main circuit.

• Replace the motor.

• Replace the Servopack.

A.C8 Absolute Encoder

Clear Error and

Multiturn Limit

Setting Error

• Occurs at power ON.

• Occurs at encoder alarm

reset.

• Encoder defective.

• Servopack defective.

• Encoder defective.

• Servopack defective.

• Check the power supply to the

main circuit.

• Check the encoder wiring.

• Servopack defective.

• Check the encoder wiring or

connector insertion at the

encoder side.

• Encoder defective.

• Servopack defective.

• Check the encoder wiring.

• Servopack defective.

• Replace the motor.

• Replace the Servopack.

• Replace the motor.

• Replace the Servopack.

A.C6

A.C7

PA-, PB-phase

connection error

C-phase

connection error

• Occurs at power ON or

when motor is in operation.

• Servopack defective.

• Incorrect encoder wiring.

• Encoder defective.

• Replace the Servopack.

• Manually correct the encoder

wiring.

• Replace the motor.

NP1MT006E

A.C9 Encoder Communi-

cations Error

• Occurs at power ON or

during operation.

• Encoder wiring incorrect or poor

connection.

• Encoder defective.

• Servopack defective.

• Manually correct the encoder

wiring.

• Replace the motor.

• Replace the Servopack.

A.CA Encoder Parameter

Error

• Occurs at power ON.

• Occurs during operation.

• Encoder defective.

• Servopack defective.

• Encoder defective.

• Servopack defective.

• Replace the motor.

• Replace the Servopack.

• Replace the motor.

• Replace the Servopack.

Part 5 Chapter 2 Servo System Troubleshooting

Edition 2.6 5-2-10 CP-7 series Mechanical Reference