Rockwell Automation 20Y PowerFlex Active Front End - Manual (Page 118)

118 Rockwell Automation Publication 20Y-UM001E-EN-P - July 2014
Chapter 5 Troubleshooting
13 Ground Fault ➀ A current path to earth ground exists that is greater
than the parameter 082 [Ground I Lvl] value. The
current must appear for 800 milliseconds before the
unit will fault. Check the cables.
14 Converter Flt ➁ A hardware problem exists in the power structure. 1. Cycle the power.
2. Contact Technical Support (see page 124 ).
3. If the problem persists, replace the converter
unit.
17 LineSync Fail ➁
➂ ➊ One input line phase is missing. 1. Check all user-supplied fuses.
2. Check the AC input line voltage.
19 Unbalanced PU ➁ An imbalance between the power modules exists
(paralleled units - only Frame 13). 1. Check for DC voltage imbalance between the
power modules.
2. Check for current input imbalance between
the power modules.
21 Phase Loss ➁ There is zero current in one of the three phases. Check supply voltage, fuses, and cable.
29 Anlg In Loss ➀
➂ ➊ An analog input is configured to fault on a signal loss.
A signal loss has occurred. Configure this fault with
parameter [Anlg In x Loss]. 1. Check parameter settings.
2. Check for broken/loose connections at the
inputs.
30 MicroWatchdog ➁ A microprocessor watchdog timeout has occurred. 1. Cycle the power.
2. Replace the Main Control board.
31 IGBT Temp Hw ➁ The drive output current has exceeded the
instantaneous current limit. 1. Check for an excess load.
2. Contact Technical Support (see page 124 ).
32 Fan Cooling ➁ Fan is not energized at start command. 1. Check the status of parameter 097 [Cnvrtr
Alarm 1] bit 5 (LCL Fan Stop). If set to ‘1’, check
the fan on the LCL Filter. If set to ‘0’, check the
fan on the converter.
2. If the LCL Filter fan is not operating, check its
DC power supply.
33 AutoReset Lim ➂ The AFE unsuccessfully attempted to reset a fault and
resumed running for the programmed number in
parameter 053 [Auto Rstrt Tries]. You can enable/
disable this fault with parameter 120 [Fault Config]. Correct the cause and manually clear the fault.
34 CAN Bus Flt ➁ A sent message was not acknowledged. 1. Cycle the power.
2. Replace the Main Control board.
35 Application ➀ Problem in application software with task overload. Contact Technical Support (see page 124 ).
37 HeatsinkUndTp ➀ The ambient temperature is too low. Raise the ambient temperature.
44 Device Change ➁ The new power unit or option board installed is a
different type. Clear the fault and reset the AFE to the factory
defaults.
45 Device Add ➁ A new option board was added. Clear the fault.
47 NvsReadChksum ➁ There was an error reading parameters 019
[Motoring MWh], 020 [Regen MWh], and 021
[Elapsed Run Time] from EEPROM. 1. Cycle the power.
2. Replace the Main Control board.
54 Zero Divide ➁ This event occurred because a mathematical function
had a dividend of zero. 1. Cycle the power.
2. Replace the Main Control board.
58 Start Prevent ➀ Startup has been prevented. 1. Cancel prevention of startup if this can be
done safely.
2. Remove Run Request.
65 I/O Removed ➁ An I/O option board has been removed. Clear the fault.
Table 21 - Fault/Alarm Types, Descriptions, and Actions (Continued)
No. Name
Fa
u
lt
Alarm
Description Action (if appropriate)