— 14-6 —
14.2.2.4. Control AC Line Under-Voltage
[Output] DRDY: Open
[TA] P3 > Control AC Line Under Voltage
[LED] P3
[Motor Condition] Servo-OFF
Table 14-6: Cause and Remedy: Control AC line under-voltage
Cause Remedy
(1) Low voltage of control power input. • Check control power voltage.
(Low voltage due to over current or output shorting.)
(2) Control circuit voltage for the power amplifier
falls below 70V due to faulty power supply.
• Turn off power, check the power supply and power
cable, then turn on power again.
(3) Faulty PCB.
(When the alarm is on after control power is
turned on.)
• Replace Driver Unit.
◊ Standard ESA Driver--------------------[Appendix 4]
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