Rockwell Automation 20P PowerFlex Digital DC Drive User Manual
Page 205
Rockwell Automation Publication 20P-UM001I-EN-P - February 2013
205
Troubleshooting
Chapter 4
Table 40 - Fault Cross Reference by Number
STune CurLimit
59
2
One of the following has occurred:
• The value of Par
[Autotune Cur Lim] for auto tuning
the speed regulator is set too high.
Decrease the value of Par
[Autotune Cur Lim] and repeat the
auto tune procedure.
• Par
[Speed Zero Level] and/or
[Speed Zero Delay]
is set too high.
Set Pars 107 and 108 to their default values when performing the
Speed Loop Autotuning function.
STune FrictionLo
60
2
The friction value attained during the auto tuning procedure
is zero or lower than the control precision limit.
Decrease the value of Par
[Autotune Cur Lim] and repeat the
auto tune procedure.
STune LoadHi
58
2
One of the following has occurred:
• The loading torque value is too high at zero speed to
complete the speed regulator auto tuning procedure.
Decrease the load torque, where applicable, and repeat the auto
tune procedure.
• Par
[Speed Zero Level] and/or
[Speed Zero Delay]
is set too high.
Set Pars 107 and 108 to their default values when performing the
Speed Loop Autotuning function.
STune Overspeed
56
2
The measured motor speed is too high during the speed
regulator auto tuning procedure.
Decrease the value of Par
[Autotune Cur Lim] and repeat the
auto tune procedure.
STune Stalled
57
2
The drive stalled during the speed regulator auto tuning
procedure.
Increase the value of Par
[Autotune Cur Lim] and repeat the
auto tune procedure.
STune Timeout
61
2
The speed regulator auto tuning procedure did not complete
within the available time or the current regulator auto tuning
procedure did not complete within 15 minutes.
Verify the value in Par
[Autotune Cur Lim]. If this value is set to
low, the motor will not be able to reach a maximum speed of 33%
of the lower of the values in Par
[Max
Speed Fwd] or Par
[Max Speed Rev] and not be able to complete
the test. Set these values appropriately and repeat the auto tuning
procedure.
Sustained Curr
70
2
One of the following has occurred:
• The motor CEMF is too high or the line voltage is too low
• A current bridge change command has not completed
within 1 second
• Check the line voltage and frequency.
• Check the motor brushes and connections.
• Check the Main and DB Contactor connections if present.
• Verify that there are no overhauling loads present.
(1) See
for a description of fault types.
Fault Name
Number Type
(1)
Description/Possible Cause(s)
Action(s)
No.
(1)
(1) Fault numbers not listed are reserved for future use.
Fault
No.
Fault
Auxiliary Input
Drive Overload
Power Failure
Sustained Curr
AC Undervoltage
Port 1 Adaptor
Arm Overvoltage
Port 2 Adaptor
Fld Current Loss
Port 3 Adaptor
Motor Overload
Port 4 Adaptor
Heatsink OvrTemp
Port 5 Adaptor
Main Contactor
Port 1 DPI Loss
Overcurrent
Port 2 DPI Loss
Motor Over Temp
Port 3 DPI Loss
Overspeed
Port 4 DPI Loss
Inverting Fault
Port 5 DPI Loss
Params Defaulted
Speed Fdbk Loss
STune Overspeed
Encoder Error
STune Stalled
Resolver Error
STune LoadHi
EEPROM Error
STune CurLimit
Hardware Fault
STune FrictionLo
Interrupt Error
STune Timeout
Dsp Error
STune Aborted