IAI America PCON-PO - Manual (Page 91)

79
6. T
roubleshooting
(2) Cold Start Alarms
Code Error Cause/action
0B8 Excitation detection error This controller detects the excited phase when the servo is turned on for the first
time after turning on the power. This alarm indicates that the specified encoder
signal level cannot be detected after 100 ms of excitation.
Cause:
[1] The connector of the motor relay cable is loose or its circuit is open.
[2] If the actuator is equipped with a brake, the brake cannot be
released.
[3] The load increased due to application of external force.
[4] The power was turned on when the actuator was contacting a
mechanical end.
[5] The sliding resistance of the actuator itself is high.
Action: [1] Check the wiring condition of the motor relay cable.
[2] Check the wiring condition of the brake cable, and also turn on/off
the brake release switch to check if “click” sound is heard.
[3] Check the assembly condition of mechanical parts for any
abnormality.
[4] Move the actuator away from the mechanical end, and then turn on
the power again.
[5] If the load is normal, cut off the power and move the actuator by
hand to check the slide resistance.
If the actuator itself is suspected as the cause, contact IAI.
0E8 Open phase A/B detected
0E9 Open phase A detected
0EA Open phase B detected
Encoder signals cannot be detected correctly.
Cause:
[1] The connector of the encoder relay cable is loose or its circuit is
open.
[2] The connector of the supplied actuator cable is loose or its circuit is
open.
Action: Check the connection condition of the encoder relay cable and perform
continuity check. If no abnormality is found, contact IAI.
If [3] is suspected, connect the encoder relay cable connector first, and
then connect the battery connector.
If [4] is suspected, check the model name of each encoder relay cable
and connect the correct relay cable to each actuator.
Model name of cable for high-thrust rod type:
CB-RFA-PA***
Model name of cable for other actuator types: CB-RCP2-PA***
0F4 Inconsistent PCB This controller uses a different motor drive circuit depending on the motor
capacity, and therefore the installed printed circuit board (PCB) is also different
with each controller.
During the initialization after starting, the controller checks if the motor type set by
the manufacturer’s parameter matches the actual PCB installed.
This alarm indicates that the two do not match.
Cause:
The parameter may not be entered correctly or the PCB may not be
assembled correctly.
Action: If you have encountered this error, contact IAI.