Rockwell Automation 7000 PowerFlex Medium Voltage AC Drive (B Frame) - Classic Control User Manual

Page 453

Troubleshooting

7-31

7000 “B” Frame

7000-UM150I-EN-P – June 2013

WARNING

MESSAGE

WARNING

CODE

DESCRIPTION

RECOMMENDED ACTIONS

Air Filter

The Pressure drop at the input to the

converter section sensed by the pressure
transducer (as a voltage) has dropped
below the value set in Pressure Value Alarm
(P320). This is dependent on the operation
of the Main Cooling Fan.

– Verify fan rotation
– Check for blocked airflow in the filters/

heatsinks/ ducting (if installed) – Clean as
required

– Improper Alarm settings – Verify Pressure

Value voltage level when running with
clear air flow, and compare to expected
values for that specific drive type

– Verify Alarm and Trip set-up procedure

was completed adequately and adjust as
necessary

– Verify for drives with external ducting that

there is sufficient air to the drive input

– Verify supply voltage to differential

pressure transducer, and confirm output
is stable

Autotune TimeLmt

Indicates that the autotune test could not
measure the parameter in the allotted time.

– REFER TO THE POWERFLEX 7000

SERIES B MANUAL (CHAPTER 4 –
COMMISSIONING) ON AUTOTUNE

PROCEDURES, RESULTS, AND
ACTIONS

Auxiliary Prot’n

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

Bus Transient

123

The drive has detected a transient of rapid
loss of line, and has placed both bridges in
freewheel mode until event clears.

– Check system for capacitive switching

events

– Contact factory for detailed actions

Buss Fault Line

200

DEVELOPMENT ERROR – NOT ACTIVE

–

Buss Fault Motor

194

DEVELOPMENT ERROR – NOT ACTIVE

–

Buss Flt Ext Mem

162

DEVELOPMENT ERROR – NOT ACTIVE

–

Buss Flt FPGA

161

DEVELOPMENT ERROR – NOT ACTIVE

–

Bypass OV

184

The measured Line-Side Bypass Voltage
has exceeded Line Overvoltage Trip (P165)
for the duration set in Line Overvoltage

Delay (P166).

– Verify the parameters are set properly
– Check for possible line voltage

transients

– Verify VSB connections and tap settings,

resistor values, and grounds

– If voltage is too high, change tap

settings on the input source to lower
voltage to an acceptable level

Bypass Rvs Rotn

187

The phase sequence on the voltage
measured on the primary side of the Bypass
Contactor is not the same as the phase

sequence on the output of the drive.

– The drive will not allow a synchronous

transfer unless the phasing is the same

– Confirm the phase sequences and swap

cables if necessary