Rockwell Automation 7000 PowerFlex Medium Voltage AC Drive (B Frame) - Classic Control User Manual
Page 467
Troubleshooting
7-45
7000 “B” Frame
7000-UM150I-EN-P – June 2013
WARNING
MESSAGE
WARNING
CODE
DESCRIPTION
RECOMMENDED ACTIONS
Speed Cmd Loss
183
The drive has lost communication with the
device responsible for providing the speed
command to the drive. This has been set to
annunciate as a warning.
– Ensure that the SCANport device is
powered
– Verify the SCANport light status and
ensure the device is operating properly
– Verify the customer SCANport network
is properly communicated with the device
– Check CIB LED status
– Cycle control power to the drive
SpdProfile Limit
92
The sum of the individual ramp times has
exceeded the maximum value for Total
Acceleration Time
– Review Ramp settings and adjust
accordingly to ensure they do not
exceed the Total Acceleration Time
Sync Xfer Failed
40
A Synchronous Transfer was not completed
in the time specified in Synchronous
Transfer Time (P230). This warning will
occur if the Sync Transfer fault is masked,
and the drive will continue to run at the last
Reference Command before a
synchronization command was initiated.
– Verify that the setup for Synchronous
Transfer has been completed
– Verify that the drive can reach
synchronous speed
– Once stability has been verified, the
parameters can be altered to reduce
restrictions on synchronous transfer
T DC Link High
58
Indicates that the Autotune Tdc (P218)
measured was greater than 0.100 pu, and
the T DC Link (P115) will have to be tuned
manually.
– REFER TO THE POWERFLEX 7000
SERIES B MANUAL (CHAPTER 4 –
COMMISSIONING) ON AUTOTUNE
PROCEDURES, RESULTS, AND
ACTIONS
T DC Link Low
57
Indicates that the Autotune Tdc (P218)
measured was less than 0.020 pu, and the T
DC Link (P115) will have to be tuned
manually.
T Rotor Low
63
Indicates that the Autotune T rotor (P222)
measured was less than 0.2 sec, and T rotor
(P132) will have to be tuned manually.
T Rotor High
64
Indicates that the Autotune T rotor (P222)
measured was greater than 5.0 sec, and T
rotor (P132) will have to be tuned manually.
Tach Loss W
33
The tachometer feedback has varied from
the reference command by the value set in
Tach Loss Trip(P235) for the duration set in
Tach Loss Delay (P236).
– The drive should annunciate the warning
and continue to run on Stator feedback
– Verify that the parameter Tachometer
Feedback (Line or Motor) is/ is not giving
the correct feedback while running
– Investigate the tachometer for damage
– Scope the tachometer pulses on SCB
and verify they are not corrupted by for
example dust in the Optic disc of the tach.
– Verify the wiring from the drive to the
tachometer is per the Electrical Drawing
– Verify the +15VDC supplying the
tachometer is not low/missing
Tach Power
35
+15VDC from the DC/DC power supply,
sensed on the CIB, is less than the 95%
alarm level.
– Check the output of the DC/DC power
supply
– Check the wiring from the power supply
to the CIB
– Verify the tachometer/encoder wiring