Rockwell Automation Publication 7000-TG002J-EN-P - March 2015 29
Fault Messages Chapter 1
XIsoTx Air Flow
(A-Frame Only)
177 The pressure sensed by the pressure transducer in the integral
isolation transformer section (as a voltage) has dropped
below the value set in IsoTxPressureTrp (P654).
• Verify fan rotation.
• Check for blocked airflow in the filters/ducting (if installed) – clean as required.
• Improper trip settings – verify the pressure value voltage level (P653) when running with
clear air flow.
• Check that the pressure sensor is working and is connected to the ACB.
• Verify the alarm and trip set-up procedure was completed adequately and adjust as necessary,
and compare with expected values for that specific drive type.
• Verify for drives with external ducting that there is sufficient air to the drive input.
• Verify supply voltage to pressure transducer, and confirm output is stable.
X IsoTx/ReacOvrTmp 33 The thermal switch in the drive input isolation transformer or
the line reactor has detected an over temperature condition
and opened the AC input to the standard XIO.
• Verify operating conditions (ambient/ altitude/ current levels/ ventilation and fans/
cooling oil) and verify that the Rectifier Transformer/Reactor is within ratings.
• Check the 120V signal through the thermal switch.
• Verify that it is not a faulty switch.
• Check the XIO board inputs and parameter status bits.
• Determine through elimination whether there is a faulty switch and replace if necessary.
X Isolator 24V Loss 63 The 24V isolator power supply has malfunctioned. • Measure the voltage between pins 1 and 2 on connector P3 on the DC/DC power supply.
• Ensure that the ribbon cable between P2 (at DC/DC PS) and J14 (at ACB) is securely
fastened.
X X X Junction OvrTemp 504 The device junction temperature calculated is higher than the
specified trip/warn level (trip P574, warn P577). High
junction temperature could be a result of one or combination
of the following: high ambient temperature, high Idc, low
cooling airflow, incorrect setting of rectifier type or heatsink
type, trip/warn level setting too low.
• Check the ambient temperature.
• Check for dirty air filters. Clean or replace the filters.
• Check for restriction in the airflow path.
• Verify that the parameters P399 and P880 are set correctly.
X LC XIO NotAssgnd 552 A required XIO Card has not been assigned based on the
selection of drive model.
• This fault is related to a liquid-cooled drive. Verify that parameter P64 is set correctly
(proper XIO card is assigned to the parameter).
All Drive Types
PF7000A
PF7000B
PF7000C
Marine Drive
Heat pipe Drive
Fault Message Fault Code Description Recommended Action(s)
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