Parker AC30V Series, Manual

Page: 129 / 337

10-4
Trips & Fault Finding
AC30V series Variable Speed Drive
ID Trip Name Possible Reason for Trip
20
LINE CONTACTOR
DC Link failed to reach the undervoltage trip level within the contactor feedback time.
•
The Line contactor failed to connect.
•
Missing 3-phase line supply
21
PHASE FAIL
•
Not yet implemented ( reserved for large frame)
22
VDC RIPPLE
The DC link ripple voltage is too high:
•
Check for a missing input phase
• Repetitive start / stop or forward reverse action.
23
BASE MODBUS BREAK
Lost Base Modbus communications:
•
A break in the Base Modbus communications has been detected. Refer to “Appendix A Modbus TCP”.
24
24V OVERLOAD
24V rail is low
•
Output overload due to excess current being drawn from the 24v terminal.
25
PMAC SPEED ERROR
Only for PMAC motor : When using the Start feature in Sensorless Vector Control, the real speed hasn’t reached
the speed setpoint after 5 seconds to move from open to closed loop control or to move from closed to open
loop
26
OVERSPEED
Overspeed:
• >150% base speed when in Sensorless Vector mode
27
SAFE TORQUE OFF
Attempt to start the motor with the Safe Torque Off active
•
Check the STO wiring. It will usually be necessary to power the drive off and on to completely clear this
event.