IAI America ERC2 User Manual

Page 110

7. T

roubleshooting

(2) Cold-start level alarms

Code

Error name

Cause/Action

0B8 Excitation detection

error

This controller detects excited phase when the servo is turned on for the first

time after a power on. This alarm indicates that the specified encoder signal

level cannot be detected after the specified period of excitation.

Cause: [1] Loose or disconnected connector of the motor extension cable

[2] The brake cannot be released (if the actuator is equipped with a

brake).

[3] A large load is applied due to an external force.

[4] The power was turned on when the actuator was contacting a

mechanical end.

[5] The slide resistance of the actuator itself is large.

Action: [1] Check the wiring condition of the motor extension cable.

[2] Check the wiring condition of the brake cable, and also turn on/off

the brake release switch to check if a “click” sound is heard.

[3] Check for abnormality in the assembly condition of mechanical

parts.

Increasing the value of parameter No. 29 (Excited-phase signal

detection time) may be effective.

If you wish to change the parameter setting, contact IAI beforehand.

[4] Move the actuator away from the mechanical end, and then turn on

the power again.

Alternatively, change the value of parameter No. 28 (Default

direction of excited-phase signal detection).

[5] If the load weight is normal, turn off the power and move the

actuator by hand to check the slide resistance.

If the actuator is suspected to be faulty, please contact IAI.

0D8 Deviation overflow

The position deviation counter has overflowed.

Cause: [1] The speed dropped due to external force, etc., while the actuator

was moving.

[2] Unstable excitation detection operation after the power has been

turned on

Action: [1] Check the load condition, such as if the work part is contacting any

object around it or the brake is released, and remove the identified

cause.

[2] An overload condition is suspected, so review the load weight.

After appropriate adjustment has been made, reconnect the power

and perform home return.

0DC Out-of-range error in

push & hold operation

This alarm occurs when the actuator was pushed back to the target position

after completion of push & hold operation, due to a strong push-back force of

the work part.

Review the overall settings of the system.