Rockwell Automation Publication 7000-TG002J-EN-P - March 2015 57
Warning Messages Chapter 2
X Anlg PwrLmt Loss 198 The drive has lost analog power limit signal. • Check the 4…20 mA input to the drive.
X Arbitration Warn 502 The number of Arbitration Loss faults has exceeded or is equal
to the maximum allowable arbitration warnings level.
• Check the DCSL communication wiring and shielding.
X Autotune TimeLmt 62 Autotune test failed to complete in two minutes. Perform the
test manually.
• Refer to the Commissioning chapter in the PowerFlex 7000 Medium
Voltage AC Drive User Manual for autotune procedures, results and
actions.
X Auxiliary Prot’n 79 Standard external fault/warning Input included to allow the
end-user to install a protective relay/system status contact that
can activate a drive fault or warning, depending on
configuration of Aux Prot Class (P445)
• See associated fault description.
• The drive has detected an alarm triggered by the input wired in the
auxiliary input of the XIO card. The alarm is user configurable by
parameters in the Alarm Config group. Investigate the cause of the
alarm. Check the 120V wiring and the XIO card.
X BlkBox NVRAM Clr 176 Black box NVRAM has been cleared. Not Used
X Bus Transient 164 This warning indicates a line side switching transient has
occurred. The drive puts both bridges in freewheel mode till the
event is cleared and resumes normal operation. Check system
for capacitative switching events.
• Check system for capacitive switching events.
• Check the drive if it is unstable.
• Check the Alpha Line for instability.
• Contact factory for detailed actions.
X Bypass CtctrOpen 188 The bypass contactor is open even though it has been
commanded to close. Verify the contactor feedback and the
120V wiring to the ACB.
• Be sure the associated starter unit is set to Normal mode.
• Verify the feedback from the contactor status (normally control
relay auxiliary and contactor mechanical auxiliary) is wired properly
and powered.
• Verify that there is control power to the contactor.
• Verify the associated ACB I/O.
• Verify that the holding coil or closing coil is not shorted.
• Verify the contactor control wiring.
• These warnings may also occur during the auto-restart feature, as
the loss of power may also result in the inability to hold in the
contactor during the outage.
X Bypass CtctrClsd 189 The bypass contactor is closed even though it has been
commanded to open. Verify normal mode of starter the
contactor feedback and the 120V wiring to the ACB.
X Bypass IsoSwOpen 192 The bypass contactor is open even though it has been
commanded to close, which is in Normal mode, DC Current test
mode, and Open Loop test mode. Verify the contactor feedback
and the 120V wiring to the ACB.
• In DC Current test mode, the isolation switches are expected to be
closed for the test; even though only the input contactor is
required, the test will run with warnings if the switches are open.
• Be sure the isolation switches are in the proper position for the
specific operating mode (Refer to the description for parameter 141 –
Hardware Option1 in the parameters manual).
• Verify the wiring feedback.
• Verify the isolation switch mechanical auxiliary setup.
X Bypass IsoSwClsd 195 The bypass isolation switch is closed when it is expected to be
open. The switch should be open in all operating modes of the
drive except Normal. Be sure proper positioning, wiring
feedback to ACB, mechanical auxiliary setup.
All Drive Types
PF7000A
PF7000B
PF7000C
Marine Drive
Heat pipe Drive
Warning Message Warning
Code
Description Recommended Action(s)
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