FEC AFC1200 - Manual (Page 27)

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9.6.2 axis unit servo drive abnormals
Overload Abnormal condition has occurred in the tool. Refer
to Sections 9.4.5 and 9.4.8. OVERLOAD D7
If this Abnormal occurred during fastening, it is caused by
under voltage. If this Abnormal occurred during power on,
the internal power supply is failing. Refer to Section 9.4.13. INPUT VOLTAGE
ABNORMAL (LOW) D6
If this Abnormal occurred during fastening, it is caused by
over voltage. If this Abnormal occurred during power on,
the internal power supply is failing. Refer to Section 9.4.13. INPUT VOLTAGE
ABNORMAL (HIGH) D5
The motor temperature sensor located in the angle encoder
of the tool has detected an overheat condition. Refer to
Section 9.4.6. MOTOR OVERHEAT D4
The servo drive internal power transistor is overheated.
Refer to Section 9.4.8. SERVO OVERTEMP D3
Abnormal condition occurred in the tool angle encoder
signal. Refer to Section 9.4.5. ENCODER ABNORMAL D2
If this Abnormal occurs during power on, the tool type and
servo (Axis Unit) type do not match. Refer to Section 9.4.8. TOOL / SERVO MISMATCH
D1
This Abnormal occurs if the tool encoder circuit is not
properly connected or is not working properly. Refer to
Sections 9.4.5. and 9.4.8. ENCODER CONNECTION
ABNORMAL D0
DESCRIPTION CODE / "ABNORMAL" TYPE
Chapter 9: Troubleshooting
Page 9-27