IAI America ERC - Manual (Page 133)

113
Code Error name Cause/Action
CA Overheating This alarm indicates that the temperature around the power transistor in the
controller board is too high (95 C or higher).
Cause: [1] High temperature around the actuator
[2] Faulty part inside the controller board
Action: Reduce the temperature around the actuator.
If the temperature around the actuator is normal, please contact IAI.
CC Abnormal control supply
voltage This alarm indicates that the voltage of the 24-V input power supply is excessive
(24 V + 20%: 28.8 V or more).
Cause: [1] High voltage of the 24-V input power supply
[2] Faulty part inside the controller board
Action: Check the voltage of the input power supply.
If the voltage is normal, please contact IAI.
CE Drop in control supply
voltage This alarm indicates that the voltage of the 24-V input power supply has dropped
(24 V – 20%: 19.2 V or less).
Cause: [1] Low voltage of the 24-V input power supply
[2] Faulty part inside the controller board
Action: Check the voltage of the input power supply.
If the voltage is normal, please contact IAI.
(3) Cold-start level alarms
Code Error name Cause/Action
B8 Excitation detection error This actuator detects the excited phase when the servo is turned ON for the first
time following the power ON. This error indicates that the specified encoder signal
level cannot be detected within 100 ms of excitation.
Cause: [1] The brake cannot be released (if the actuator is equipped with a
brake).
[2] A large load is applied due to an external force.
[3] The power was turned on when the actuator was contacting a
mechanical end.
[4] The slide resistance of the actuator itself is large.
Action: [1] Turn on/off the brake release switch to see if the brake makes “click”
sounds.
[2] Check for abnormality in the assembly condition of mechanical parts.
[3] Move the actuator away from the mechanical end, and then turn on
the power again.
[4] If the load capacity is normal, cut 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.
F8 Damaged nonvolatile
memory
Abnormal data was detected during the nonvolatile memory check after starting.
Cause: [1] Faulty
nonvolatile memory
[2] The memory has been rewritten more than 100,000 times.
(The nominal rewrite limit of the nonvolatile memory is around
100,000 times.)
Action: If the alarm generates again after reconnecting the power, please contact
IAI.
FA CPU error The CPU is not operating properly.
Cause: [1] Faulty
CPU
[2] Malfunction due to noise
Action: If the alarm generates again after reconnecting the power, please contact
IAI.