Rockwell Automation 7000L PowerFlex Medium Voltage AC Drive (C Frame) - Classic Control - Manual (Page 505)

Troubleshooting 7-21
7000 “C” Frame 7000L-UM300I-EN-P – June 2013
FAULT
MESSAGE
FAULT
CODE
DESCRIPTION RECOMMENDED ACTIONS
Rec ChB Low
Temp
205 If the measured temperature Temp R Ch B
C (P556) is less than 2°C, and the drive is
not running, the drive will display this fault.
This is not enabled on most drives, and the
parameter is a high-level parameter.
– There could be a mechanical problem
with the temperature sensor or with the
cable feeding the signal back to the TFB
– Swap with the inverter hardware to
identify the bad component
Rect HeatSink OT 193 The temperature detection on the Rectifier
Heatsink, connected to Channel A fiber optic
receiver RX7 on FOI-L-A, has exceeded
Rectifier Heatsink Temperature Trip (P315).
– Confirm actual temperature in
parameters is not higher than the trip
value – If so, investigate the conditions of
the drive (ambient/ loading/ elevation /
ventilation/ filter status /heatsink
clogging)
– Check TFB and FOI board for power and
fiber optic integrity
– Check the sensor and temperature
offline (ambient) for accuracy
Rect ChannelB OT 194 Not Normally Used - The temperature
detection on a Rectifier Heatsink, connected
to fiber optic receiver RX7 on FOI-L-B, has
exceeded Rectifier Temperature Trip
Channel B (P525).
Rec HS Sensor 201 The drive has detected a missing
temperature sensor connected to the TFB
on the rectifier heatsink. A missing sensor
can result in either a Fiber Optic Loss fault
or a Sensor fault because a missing sensor
can be interpreted as either 0°C or over
100°C, and both are unrealistic values.
– Verify sensor is completely seated
properly on TFB.
– Measure sensor resistance.
– Replace if necessary.
Rec ChB Sensor 202 Not normally used: The drive has detected
a missing temperature sensor connected to
the optional TFB connected to the fiber optic
receiver RX7 on FOI-L-B. A missing sensor
can result in either a Fiber Optic Loss fault
or a Sensor fault because a missing sensor
can be interpreted as either 0°C or over
100°C, and both are unrealistic values.
RNeutral OL 203 The neutral resistor required for Direct-to-
Drive technology has reached an overload
condition. This is determined from
parameters R Neutral (P680), R Neutral
Rating (P681). The current through the
neutral resistor is calculated by measuring
the voltage across the resistor and knowing
the resistance. I Common Mode (P697)
displays that current, and R Neutral OL
(P682) shows the overload accumulator.
The resistor is allowed 500% for 10 seconds
every 5 minutes, and P682 is normalized to
fault whenever the value reaches 1.00.
SCB Incompat 177 Signal Conditioning Board Incompatible