Rockwell Automation Publication 7000-TG002J-EN-P - March 2015 35
Fault Messages Chapter 1
X X Pressure Loss
(C-Frame Only)
64 The measured system pressure has dropped below a preset
trip level. The standard operating pressure is around 50 psi.
The pressure switch is not designed to be an accurate measure
of pressure, but is designed as a Pressure/No Pressure
indication. Typically anything less than 20 psi will activate
this switch.
• Check that the pumps are operating.
• Verify that there are no leaks in the system.
• Verify that there is no blockage in the system.
X X Pump/Fan Pwr Off
(C-Frame Only)
71 The control power to the pumping system and the heat
exchanger fans is not present.
The drive detected that the Pump/Fan power is off.
• Verify the disconnect switch is closed and that there are no blown fuses.
• Measure the voltage at the pump and fan inputs to ensure voltage is present.
• Trace the feedback to the drive from the circuit, looking for loose wiring or incorrect
auxiliaries.
X RecAnlg SelfTest 128 On power up the drive has detected that dc offset on some
analog feedback channels is high. The offending channels are
indicated by parameters RecAnlg SelfTst1 (473), RecAnlg
SelfTst2 (474) and RecAnlg SelfTst3 (494) in the Diagnostics
group.
• Using a multimeter, check the DC offset on the circuit when this fault is present. The feedbacks
that cause this fault can be determined by looking at parameter (P473, P474 and P494)
under Diagnostics group.
• Cycle control power, to see if the Fault condition remains and replace ACB if necessary.
X RecA2D Convrsion 131 This fault indicates that the analog to digital converters on
the ACB were not able to completely transmit the data to the
master processor using the DMA within the sampling period.
• Cycle power to the drive.
• If the problem persists replace DPM or ACB.
X RecA2D SeqError 133 An error has been detected in A2D conversion. • Cycle control power.
• If the fault does not clear after cycling the control power, then replace ACB board. If this
does not resolve the issue, then replace DPM board.
X RecChB FbrOptic 152 Not normally used. While Not Running, the fiber-optic signal
from the optional TFB connected to channel B fiber-optic
receiver RX7 on FOI-L-B is not present. This is only a fault
while not running. If this occurs while running it will appear
as a warning.
• Check TFB and FOI board for power.
• Check the fiber-optic cables are properly seated in the transmitters and receivers.
• Check the fiber-optic cable for kinks/bends/breaks that could be blocking the signal.
X RecHSnk FbrOptic 148 While Not Running, the fiber-optic signal from the TFB on the
rectifier heatsink, connected to channel A fiber-optic receiver
RX7 on FOI-L-A is not present. This is only a fault while not
running. If this occurs while running it will appear as a
warning.
X RecHSnk LowTemp 147 The drive detected that the rectifier heat sink temperature is
less than 2 °C (35.6 °F). Ensure the room ambient is higher
than 0 °C (32 °F) before starting the drive.
• Verify that the ambient in the control room is not below 2°C (35.6°F).
• Verify power to the TFB.
• 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.
RecChB LowTemp 151 This is not enabled on most drives and the parameter is a
high-level parameter. The drive has detected that the
temperature feedback from the optional temperature board is
less than 2 °C (35.6 °F).
All Drive Types
PF7000A
PF7000B
PF7000C
Marine Drive
Heat pipe Drive
Fault Message Fault Code Description Recommended Action(s)
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