12 Rockwell Automation Publication 7000-TG002J-EN-P - March 2015
Chapter 1 Fault Messages
Fault Messages
All Drive Types
PF7000A
PF7000B
PF7000C
Marine Drive
Heat pipe Drive
Fault Message Fault Code Description Recommended Action(s)
X AC/DC#1 AC Fail 58 There can be up to 4 AC/DC power supplies in a drive,
designated 1, 2, 3 and 4. Each power supply will have its input
control voltage measured and monitored for reliable drive
operation. An AC Fail is detected when the input to any of the
AC/DC power supplies goes below 85Vrms.
120Vac is measured directly on the ACB at terminals J1 14-15.
The drive displays the measured value in the Metering group
parameters 118, 77, 79, and 92 for power supplies 1 to 4
respectively.
• Verify the input AC voltage to the power supply, typically 110Vac or 120Vac.
• Be sure that the AC/DC power supply monitor signal is connected to the ACB.
• Check the Metering group in the drive variables to view the control power value the drive
is measuring.
• The example below shows that the drive is detecting a single AC/DC power supply whose
input voltage is 116.6V.
X AC/DC#2 AC Fail 59
X AC/DC#3 AC Fail 60
X AC/DC#4 AC Fail 61
X AC/DC#1 DC Fail 48 There can be up to 4 AC/DC power supplies in a drive,
designated 1, 2, 3 and 4. Each power supply has its own
sensing circuit and will monitor its DC output voltage. The
AC/DC power supply triggers a DC Fail signal when an output
drops below 49Vdc.
The drive monitors the DC Fail signals from the inputs
connected to terminals J18, J19, J20 and J21.
The drive monitors the 56VDC supply via connection J15 1-2
on the ACB.
• Verify that the power supply is energized and is using the appropriate input control power.
• Measure the output voltage and confirm whether the output level is below the trip level.
• Verify that the fault detection wiring is per the drawings, and measure the voltage on the
trip signals. For example, Terminal J18 2-3 is 5Vdc when healthy, and 0V in a faulted state.
• Verify that the power supply internal cooling fan is operational, cycle control power if
needed.
• If the cooling fan is not operational, replace the power supply.
• Check parameter 121 in the Metering group of the drive variables to view the measured
DC voltage.
X AC/DC#2 DC Fail 49
X AC/DC#3 DC Fail 50
X AC/DC#4 DC Fail 51
X Adapter 1 Loss 17 There has been a loss of communication between the Drive
Processor Module (DPM) and the DPI adapter 1-6.
• Cycle control power to the drive.
• Change the adapter and/or DPM if all attempts to restore communication fail.
• Ensure that the adapter is plugged into the ACB, powered, and working properly.
X Adapter 2 Loss 18
X Adapter 3 Loss 19
X Adapter 4 Loss 20
X Adapter 5 Loss 21
X Adapter 6 Loss 22
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