Single-channel all-digital AC servo drives QS7 Series
40
ER0-11
Power module fault
1
）
Over-current
2
）
Voltage is too low
3
）
Motor insulation is damaged
4
）
Gain parameter is set incorrectly
5
）
Overload
6
）
Temperature is too high
7
）
Module is damaged
8
）
Interference
9
）
Short-circuits occurs among motor cables U, V,
and W.
ER0-12
Over-current
1
）
Short-circuits occurs among motor cables U, V,
and W.
2
）
Imperfect grounding
3
）
Broken motor insulation
Chapter VIII Debugging
Motor and driver must connect to GND, PE must connect GND with Motor.
Suggestions power drive provide by the isolated transformer for safely and anti-interference.
Before power on, check all of connected wire are correctly.
After driver fault alarm, confirm if fault are settled before re-start.
Don’t touch motor and driver within 5 minutes after power off for prevent shock?
It may high temperature after motor & driver running a long time for prevent burns.
8.1 Working sequence
8.1.2 Sequence of connected power
● When connect control power, servo driver alarms within 400ms; when main power is on,
the alarm disappear, servo motor prepare signal ON within 1.5s, internal servo’s enable become
effective, the motor excitation is on within 10ms.
SRDY
Main power
Servo EN
Motor electricity state
1.5s
300ms
10ms
OFF
Power off
OFF
OFF
No electricity
Power on
ON
ON
Power on
ON
400ms
Power off
Power on
Servo alarm