Rockwell Automation 22C PowerFlex 400 AC Drive FRN 1.xx - 7.xx - Manual (Page 137)

Troubleshooting 4-3
PowerFlex 400 Adjustable Frequency AC Drive FRN 1.xx - 7.xx User Manual
Publication 22C-UM001I-EN-P
Table 4.A Fault Types, Descriptions and Actions
Fault Descriptions
No. Fault Type
(1
)
Description Action
F2 Auxiliary Input ➀ Auxiliary input interlock is
open. 1. Check remote wiring.
2. Verify communications
programming for intentional fault.
F3 Power Loss ➁ FRN 5.03 and earlier only:
The DC bus voltage fell below
undervoltage level within
200 ms of a start command,
DC bus ripple voltage is exces-
sive, or an input phase loss
has been detected. 1. Monitor the incoming AC line for
low voltage or line power
interruption.
2. Check input fuses.
F4 UnderVoltage ➀ DC bus voltage fell below the
minimum value. 1. Monitor the incoming AC line for
low voltage or line power
interruption.
2. Check input fuses.
F5 OverVoltage ➀ DC bus voltage exceeded
maximum value. Monitor the AC line for high line
voltage or transient conditions. Bus
overvoltage can also be caused by
motor regeneration. Extend the decel
time or install a dynamic brake
chopper.
F6 Motor Stalled ➀ Drive is unable to accelerate
motor. Increase P039 - A147 [Accel Time x] or
reduce load so drive output current
does not exceed the current set by
parameter
A179 [Current Limit 1].
F7 Motor Overload ➀ Internal electronic overload
trip. 1. An excessive motor load exists.
Reduce load so drive output current
does not exceed the current set by
parameter
P033 [Motor OL
Current].
2. Verify A170 [Boost Select] setting
F8 Heatsink
OvrTmp ➀ Heatsink temperature exceeds
a predefined value. 1. Check for blocked or dirty heat sink
fins. Verify that ambient
temperature has not exceeded
45
° C (113 ° F) for IP 30/NEMA 1/UL
Type 1 installations or 50°C (122°F) for
IP20/Open type installations.
2. Check fan.
F12 HW OverCurrent ➁ The drive output current has
exceeded the hardware
current limit. Check programming. Check for excess
load, improper
A170 [Boost Select]
setting, DC brake volts set too high or
other causes of excess current.
F13 Ground Fault ➁ A current path to earth ground
has been detected at one or
more of the drive output
terminals. Check the motor and external wiring to
the drive output terminals for a
grounded condition.
(1)
See page 4-1 for a description of fault types.