Manual

7-20 Troubleshooting
7000-UM150I-EN-P – June 2013 7000 “B” Frame
FAULT
MESSAGE
FAULT
CODE
DESCRIPTION
RECOMMENDED ACTIONS
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.
– Verify the resistor ratings
– Verify that the drive Voltage Feedback
Splitter board is operating properly
– Investigate the possibility of voltage
unbalances on the input or output of the
drive that would create a voltage
differential across the resistor
– Contact the factory for further
instructions
SCB Incompat
177
Signal Conditioning Board Incompatible
– This is for DTD drive only
– The SCB -280 and 380 are used in DTD
drive. The boards have different filter that
cause this fault.
– Use -380 board on SCBL and SCBM
FAULT
MESSAGE
FAULT
CODE
DESCRIPTION
RECOMMENDED ACTIONS