Rockwell Automation 21G PowerFlex 750-Series AC Drives Programming Manual User Manual
Page 315
Rockwell Automation Publication 750-PM001J-EN-P - October 2014
315
Troubleshooting
Chapter 6
38
39
40
Phase U to Grnd
Phase V to Grnd
Phase W to Grnd
Resettable
Fault
Coast
A phase to ground fault has been detected between the drive and motor
in this phase.
Rotate U/T1, V/T2, W/T3 connections.
• If the problem follows the wire, suspect a field wiring problem.
• If no change, suspect a problem with the drive.
41
42
43
Phase UV Short
Phase VW Short
Phase WU Short
Resettable
Fault
Coast
Excessive current has been detected between these two output
terminals.
Rotate U/T1, V/T2, W/T3 connections.
• If the problem follows the wire, suspect a field wiring problem.
• If no change, suspect a problem with the drive.
44
45
46
Phase UNegToGrnd
Phase VNegToGrnd
Phase WNegToGrnd
Resettable
Fault
Coast
A phase to ground fault has been detected between the drive and motor
in this phase.
Rotate U/T1, V/T2, W/T3 connections.
• If the problem follows the wire, suspect a field wiring problem.
• If no change, suspect a problem with the drive.
48
System Defaulted
Resettable
Fault
Coast
The drive was commanded to write default values.
49
Drive Powerup
–
A Power Up Marker in the Fault Queue indicating that the drive power
cycled.
51
Clr Fault Queue
–
Indication that the fault queue has been cleared.
55
Ctrl Bd Overtemp
Resettable
Fault
Coast
The temperature sensor on the main control board detected excessive
heat. See product temperature requirement.
58
Module Defaulted
Resettable
Fault
Coast
The module was commanded to write default values.
59
Invalid Code
Resettable
Fault
Coast
Internal error.
61
Shear Pin 1
Configurable
[Shear Pin 1 Actn]
Y
The programmed value in P436 [Shear Pin1 Level] has been exceeded.
62
Shear Pin 2
Configurable
[Shear Pin 2 Actn]
Y
The programmed value in P439 [Shear Pin2 Level] has been exceeded.
64
Drive OverLoad
Alarm 1
Y
P940 [Drive OL Count] has exceeded 50% but is less than 100%.
Resettable
Fault
Coast
P940 [Drive OL Count] has exceeded 100%. Reduce the mechanical load
on the drive.
Inverter fiber optic connection is not detected on Frame 8 drive.
This fault may occur on power up if the control detects that no inverter is
detected via the fiber optic communication on a Frame 8 drive.
67
Pump Off
Alarm 1
Pump Off condition has been detected.
71
72
73
74
75
76
Port 1 Adapter
Port 2 Adapter
Port 3 Adapter
Port 4 Adapter
Port 5 Adapter
Port 6 Adapter
Resettable
Fault
Coast
The DPI communications option has a fault.
See device event queue.
77
IR Volts Range
Alarm 2
The default for P70 [Autotune] is 1 “Calculate” and the value calculated
from the motor nameplate values returned a value for P73 [IR Voltage
Drop] which is not in the range of acceptable values.
Check motor nameplate data against parameters P25 [Motor NP Volts]
through P30 [Motor NP Power].
Resettable
Fault
Coast
P70 [Autotune] is set to 2 “Static Tune” or 3 “Rotate Tune” and the value
measured by the Autotune procedure for P73 [IR Voltage Drop] is not in
the range of acceptable values.
Event
No.
Fault/Alarm Text
Type
Fault
Action
Configuration
Parameter
Auto
Reset
Description/Action(s)