Rockwell Automation Allen-Bradley LiquiFlo 2.0, User Manual

Page: 209 / 268

Rockwell Automation Publication D2-3518-4 - January 2020 209
Troubleshooting the Drive Chapter 10
Rctfr I2T Ovrld 220

Long-term current rating of rectifier exceeded. 1. Low input voltage can result in increased current load. Provide proper
input voltage to the drive.
2. Verify that rectifier Input Load Amps (106) is set correctly.
Rctfr IGBT Temp 218

Excessive calculated rectifier IGBT junction temperature. See
rectifier Rctfr IGBT Temp (rectifier 19). Check for proper temperature and flow rate of coolant.
Rctfr IO Board 236

Communication between control board and I/O board has not
been established. 1. Clear fault.
2. If fault persists, verify connection between I/O board and control board.
3. If fault still persists, replace I/O board.
4. If fault still persists, replace control board.
Rctfr IT Overld 219

Short-term current rating of rectifier exceeded. Low input voltage can result in increased current load. Provide proper input
voltage to the drive.
Rctfr Not Login 238

Rectifier took too long to connect to inverter. 1. Verify the DPI Data Rate (270) is set to 500K.
2. Connect one DPI device at a time to see if one of the DPI devices is
causing the problem.
3. Replace the Combined Control board.
Rctfr Not OK 232

A fault was detected on the rectifier but could not be
displayed on the inverter. Look at rectifier parameter 243 to see fault code.
Rctfr NTC Demux 244

Control board cannot read temperature information from
rectifier half of power board. 1. Clear faults.
2. If fault persists, verify connections to power board.
3. If fault still persists, replace power board.
Rctfr Over Cur
R, S, T 211
212
213

Rectifier overcurrent.
See description of rectifier IOC Redir Time (300) and IOC Redir
Max (301) for discussion of alternative reporting of rectifier
instantaneous overcurrent (IOC) faults. 1. High line current can be caused by high load current. Verify that rectifier
overcurrent was not caused by sudden increase in motor (inverter)
current.
2. Low input voltage can result in increased current load. Provide proper
input voltage to the drive.
3. AC line events such as short duration shorts in the nearby grid can cause
sudden line current increases. Verify that such events have not occurred.
4. Verify proper motor data is entered on inverter.
5. Reduce rectifier current limit using rectifier Current Limit parameter
(105).
Rctfr Over Volt 224

The DC bus voltage is too high. Monitor the AC line for high line voltage or transient conditions. Bus
overvoltage can also be caused by motor regeneration. Extend the decel
time.
Rctfr Pwr Board 235

Drive rating information stored on the power board is
incompatible with rectifier application firmware, or drive
rating information stored on the power board was corrupted
or could not be read by rectifier firmware. 1. Check connections between Combined Control board and Combined
Power board. If this fixes the problem, use inverter Reset To Defaults
(inverter 197) and rectifier Reset To Defaults (rectifier 197) to reset all
drive parameters to defaults, then reconfigure drive as necessary.
2. Load updated drive rating information onto rectifier.
3. Load updated rectifier application firmware.
4. Replace power board.
Rctfr Unk IO Brd 245

The I/O board is of a type that is unknown to the rectifier
firmware. If fault is cleared, analog inputs and outputs are
unusable. 1. Verify that I/O Board ID Voltage (rectifier 354) is correct for this type of I/
O board.
2. If ID voltage is not correct, then replace I/O board. If ID voltage is still not
correct, then replace control board.
3. If ID voltage is correct, verify that current rectifier application firmware
version can use this type of I/O board. If not, then update rectifier
application firmware.
Reactor Temp 214

Temperature switch in reactor opened. Check for proper temperature and fan operation.
Replaced MCB-PB 107

Control board or power board was replaced.
This fault can be cleared by writing a nonzero value to inverter
Reset To Defaults parameter (197). 1. Restore inverter defaults (inverter parameter 197).
2. Reprogram parameters.
Ride Thru Abort 221

Input power loss timed out, rectifier Ride Through Ena
(rectifier 64) is set to
Enabled .
1. Verify input power and connections.
2. Check I/O board.
Shear Pin 63


Programmed inverter Current Lmt Val (148) has been
exceeded.
Enabled/disable with inverter Fault Config 1 (238). Check load requirements and inverter Current Lmt Val (148) setting.
Table 22 - Fault Descriptions and Corrective Actions (Frame 4) (Continued)
Fault
No
.
Ty
pe
Description Action