64 Rockwell Automation Publication 7000-TG002J-EN-P - March 2015
Chapter 2 Warning Messages
X Duplicate Master 121 This warning is for parallel drives only with DCSL enabled and
indicates that this drive was configured to be the Master, but
already another Master drive exists in the link.
• The Powerup Config parameter is set to Master in more than one
drive. The first drive to power up will become the master.
X EncoderDirection 148 The drive cannot determine the direction of rotation from the
tachometer feedback. It is likely that one of the quadrature
pulses is not being sensed.
• Check all signal connections on the tachometer feedback board.
Replace the board if necessary.
X Encoder Loss 147 The error between tachometer feedback and estimated speed
from motor flux is more than the Tach Lost Trip (P235) for the
duration set in the Tach Loss Delay (P236). The drive will
continue to run in sensorless mode.
• Verify the tachometer feedback, wiring and +15Vdc supply. Also
ensure the stability of the drive.
X Encoder PhA Loss 149 The drive has detected a loss of a phase from the encoder. The
drive will continue to run on the encoder provided pulses from
the other phase are valid. This warning is valid only if HPTC
mode is enabled.
• Verify the tachometer, tachometer wiring, power supply and the
board.
• Be sure that all channels are connected properly and not swapped
at motor and drive end. For example, swapping A+ and A- will
cause this fault.
• Z+ and Z- are not to be used in PowerFlex 7000 Forge drives.
Remove any wires and/or jumpers on the Z+, Z- terminals.
• Tech notes related to encoders are:
PF7000 4th Gen_FMW-11, PF7000 Firmware 9.001 and 9.002 with
Encoder Release Notes
X Encoder PhB Loss 151
Ext Flt Config 19 XIO card assigned to external fault is unusable for this purpose.
Select the proper slot compatible for usage.
• Select the proper slot containing the XIO card which is compatible
for external faults usage.
Ext Flt Conflict 20 External fault XIO card has been re-assigned for another
purpose. Check configuration of all cards and reassign if
necessary.
• Check the configuration of all XIO slots and reassign if necessary.
External 1…External 16 1…16 These are the optional additional external faults available
when there is an additional XIO board installed. This is
configured with XIO Ext Faults (P593), and this message will
appear if the specific input (1…16) is configured in Fault
Config as a warning.
• See the associated fault description.
• Check the input circuit for that warning.
• Refer the optional XIO board wiring circuit on electrical drawing.
FlexIO Config 29 The XIO card which is being assigned is not a card which can be
used for this purpose.
• Select the proper slot containing a compatible XIO card.
FlexIO Conflict 30 The XIO card previously used has been reassigned to another
function.
• Check the configuration of all XIO slots.
GatePwrSup V Low 160 This alarm is for SGCT based drives and indicates a problem
with the gate power supply, which is being monitored using
the temperature feedback board.
• Check the 20V input to the gate driver board. Replace the IGDPS if
necessary.
X HeatExchnger Fan
(C-FRAME ONLY)
34 This warning is for liquid cool drives. The drive has detected a
problem in the liquid to air heat exchanger fans.
• Verify the fan Overload settings and conditions.
• Verify the fan control relay status and auxiliary contact signals.
All Drive Types
PF7000A
PF7000B
PF7000C
Marine Drive
Heat pipe Drive
Warning Message Warning
Code
Description Recommended Action(s)
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