Rockwell Automation 20M LPM15 Liquid-Cooled Adjustable Frequency AC Drive FRN 2.xxx - Manual (Page 86)

4-4 Troubleshooting
Hardware Fault 130 Gate array load error. 1. Cycle power.
2. Replace Main Control Board.
Hardware Fault 131 Dual port failure. 1. Cycle power.
2. Replace Main Control Board.
Heatsink OvrTemp 8
➀
Heatsink temperature exceeds 100% of [Drive Temp]. 1. Verify that maximum ambient temperature has not
been exceeded.
2. Check fan.
3. Check for excess load.
HW OverCurrent 12
➀
The drive output current has exceeded the hardware
current limit. Check programming. Check for excess load, improper
DC boost setting, DC brake volts set too high or other
causes of excess current.
Incompat MCB-PB 106
➁
Drive rating information stored on the power board is
incompatible with the main control board. Load compatible version files into drive.
I/O Comm Loss 121 I/O Board lost communications with the Main Control
Board. Check connector. Check for induced noise. Replace
I/O board or Main Control Board.
I/O Failure 122 I/O was detected, but failed the powerup sequence.
I/O Board is separate in Standard Control. Replace I/O Board (Standard Control).
IR Volts Range 77 “Calculate” is the autotune default and the value
determined by the autotune procedure for IR Drop
Volts is not in the range of acceptable values. Re-enter motor nameplate data.
IXo VoltageRange 87 Voltage calculated for motor inductive impedance
exceeds 25% of [Motor NP Volts]. 1. Check for proper motor sizing.
2. Check for correct programming of [Motor NP Volts],
parameter 41.
3. Additional output impedance may be required.
Motor Overload 7
➀ ➂
Internal electronic overload trip. Enable/Disable with
[Fault Config 1] on
page 3-23 .
An excessive motor load exists. Reduce load so drive
output current does not exceed the current set by
[Motor NP FLA].
NVS I/O Checksum 109 EEprom checksum error. 1. Cycle power and repeat function.
2. Replace Main Control Board.
NVS I/O Failure 110 EEprom I/O error. 1. Cycle power and repeat function.
2. Replace Main Control Board.
OverSpeed Limit 25
➀
Functions such as Slip Compensation or Bus
Regulation have attempted to add an output
frequency adjustment greater than that programmed
in [Overspeed Limit]. Remove excessive load or overhauling conditions or
increase [Overspeed Limit].
OverVoltage 5
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
dynamic brake option.
Parameter Chksum 100
➁
The checksum read from the board does not match
the checksum calculated. 1. Restore defaults.
2. Reload User Set if used.
Params Defaulted 48 The drive was commanded to write default values to
EEPROM. 1. Clear the fault or cycle power to the drive.
2. Program the drive parameters as needed.
Phase U to Grnd 38 A phase to ground fault has been detected between
the drive and motor in this phase. 1. Check the wiring between the drive and motor.
2. Check motor for grounded phase.
3. Replace drive.
Phase V to Grnd 39
Phase W to Grnd 40
Phase UV Short 41 Excessive current has been detected between these
two output terminals. 1. Check the motor and drive output terminal wiring
for a shorted condition.
2. Replace drive.
Phase VW Short 42
Phase UW Short 43
Table 4.A Fault Types, Descriptions and Actions (Continued)
Fault No. Type
(1)
Description Action