11.6.4 Error 3: Undervoltage error
11.6.4.1 Error 3-1 (emergency code 3120h)
Cause: Undervoltage in DC link
Suggested steps:
Re-start process when power is available. Please check grid conditions.
An under-voltage occurred
on the drive while this axis
was switched on.
l
Power supply was possibly switched off.
l
Please check if the actual grid voltage matches
the supply setting (parameter PST_
VoltageSupply)
l
Verify that the grid is stable under load
condition.
11.6.4.2 Error 3-2 (emergency code 3120h)
Cause: Undervoltage: Power fail function has reached minimum speed
Suggested steps:
Re-start process when power is available. Please check grid conditions and power
fail levels.
An under-voltage occurred
on the drive while this axis
was switched on.
l
Power supply was possibly switched off.
l
Please check if the actual grid voltage matches
the supply setting (parameter PST_
VoltageSupply)
l
Verify that the grid is stable under load
condition.
MOOG
ID No.: CB40859-001 Date: 11/2020
MSD Servo Drive - Device Help
334
11 Alarms & warnings
11.6.5 Error 4: Overvoltage error
11.6.5.1 Error 4-1 (emergency code 3110h)
Cause: Overvoltage detected
Suggested steps:
An over-voltage occurred.
l
Please check if the actual grid voltage matches
the supply setting (parameter PST_
VoltageSupply)
l
Over-voltage may be caused by a decelerating
axis, possibly with high inertia. Reduce
deceleration ramp.
l
Consider using a braking resistor with higher
power. If the supply unit has an internal
braking resistor, please contact your service
partner.
11.6.5.2 Error 4-2 (emergency code 3110h)
Cause: Maximum DC-link mean potential deviation detected.
Suggested steps:
This is possibly a hardware
issue
If other measures fail to solve the problem, please
replace the servo drive.
