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Troubleshooting
137
Name
Description
Possible Causes & Corrective Action
Encoder Flt
[F09]
The drive is in a run condition and the
encoder is:
not functioning
or
not connected.
or
phasing is not proper with the
motor
.
Encoder Should Match Motor Phasing
Usually drive’s “HIT TORQUE LIMIT”
alarm message is displayed (depending
on setting of TRQ LIM MSG DLY (A1)
parameter)
Switch either two motor phases or swap
two encoder wires (A and /A)
Encoder Power Supply Loss
Check 12 or 5 volt supply on terminal
strip TB1 pins 17 and 18
Accurate Motor Parameters
Verify motor nameplate values are
entered correctly
Complete Adaptive Tune and Inertia
procedure
As a last step, calculate motor
parameters from motor’s equivalent
circuit.
Response of Speed Regulator
Enter accurate INERTIA (A1) parameter
Increase RESPONSE (A1) parameter
Encoder Coupling Sloppy or Broken
Check encoder to motor coupling
Excessive Noise on Encoder Lines
Check encoder connections. Separate
encoder leads from power wiring (cross
power lead at 90
)
Other Conditions Causing Fault
Check encoder count parameter
ENCODER PULSES (A1)
Possible motor phase loss
Hardware Problem
Replace drive Control board.
Replace drive TerMag board.
Replace drive EnDat board.
EncoderFault
OFF
(alarm)
[F78]
When the Encoder Fault is disabled
(ENCODER FAULT (C1) = disabled),
the drive will display the warning
message
“EncoderFault OFF”, every
time the RUN command is removed.
Check Parameter Settings
Check the setting of parameter
ENCODER FAULT (C1)
Extrn Fault 1
[F11]
User defined external logic fault input
Check Parameter Settings and External
Fault Signal Wiring
Check the correct logic input is
configured for the correct TB1 terminal
and set to EXTRN FAULT 1 (C2)
Check external fault is on the correct
terminal on TB1.
Extrn Fault 2
[F12]
User defined external logic fault input
Check Parameter Settings and External
Fault Signal Wiring
Check the correct logic input is
configured for the correct TB1 terminal
and set to EXTRN FAULT 2 (C2)
Check external fault is on the correct
terminal on TB1.
Содержание HPV 900 Series 2
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Страница 227: ...205 Z Z MARKER LOST 150 Zero Speed Level parameter 47 Zero Speed logic output 105 Zero Speed Time parameter 47...
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