Rockwell Automation 7000A PowerFlex Medium Voltage Drive (A-Frame) - Classic Control - Manual (Page 485)

Troubleshooting 7-47
7000 “A” Frame 7000A-UM150F-EN-P – June 2013
WARNING
MESSAGE
WARNING
CODE
DESCRIPTION RECOMMENDED ACTIONS
Slv RfsdMstr 343 Slave refused Master-master only – Slave has lost communication with hub
PLC, or slave is masked off in parameter
Master Mask
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