24 Rockwell Automation Publication 7000-TG002J-EN-P - March 2015
Chapter 1 Fault Messages
X X X InvHSnk OvrTemp 178 The temperature detection on the inverter heatsink,
connected to Channel A fiber-optic receiver RX7 on FOI-M-A,
has exceeded InvHSink TempTrp (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 the sensor and temperature offline (ambient) for accuracy.
• Check for any harmonic and capture DC current waveforms on ACB board.
• Ensure that the fan is working properly and that the air flow is sufficient in this cabinet.
X X X InvHSnk Sensor 181 While Not Running, The drive has detected a missing
temperature sensor connected to the TFB on the inverter
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.
X Inv OIBB Com Flt 628 Inverter OIBBS communication fault
: Communication failed to
the OIBBS. Communication from the inverter OIBBS is lost.
• Verify the drive settings. If the drive does not use the STO feature, disable STO and verify
that the correct OIBB type is installed.
• Verify the inverter Optical Interface Base Board Safety (OIBBS) connections to the DPM.
• Check and cycle the control power to the safety system (OIBBS).
• If the same fault trips the drive again, contact the manufacturer for the OIBBS spare part
for replacement.
X InvOvrVoltage SW 468 The drive has detected an over-voltage at the inverter output
terminals in software for long cable applications. A fault is
issued if the drive is gating else a warning is issued.
• Verify that the Motor Over Voltage Trip (P181) is set correctly.
• Verify that the motor cables are not disconnected.
• Contact MV Tech Support for assistance.
All Drive Types
PF7000A
PF7000B
PF7000C
Marine Drive
Heat pipe Drive
Fault Message Fault Code Description Recommended Action(s)
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