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Troubleshooting
136
Name
Description
Possible Causes & Corrective Action
Encdr Crc Err
(Fault)
[F60]
Encdr Crc
Warn
(Alarm)
[F87]
Alarm and Fault:
Absolute encoder checksum error is
detected. The alarm is posted if the
CRC error does not affect drive
operation. If the error persists, the
alarm is converted into the fault.
Noise Immunity Issue
Make sure that the encoder cable is
properly grounded.
Encoder Problem
Encoder wiring problem
– check for
broken encoder leads.
Encoder Power Supply folding back,
check between pins 73 and 74 for +5V
on TB2 of EnDat Option board. If supply
is low, verify encoder voltage sense and
ground sense wires are not connected
together.
Encoder failure
– replace encoder and
REALIGN rotor.
Inadequate encoder type
– the absolute
encoder option board will only support
sin/cos absolute encoders
Option Board Problem
Also verify JM2 is connected to position
1-2, or 2-3
Check power to encoder on pins 73 and
74 of the EnDat Option card
Replace the option board
Encod Out of
Tol
(Incremental
PM)
[F85]
Z pulse channel not pulsing within a
preset window the drive expects to
see.
Sheave position changed
Drive must be on looking at encoder
feedback anytime the machine moves
Redo the alignment procedure
Encoder Problem
Encoder wiring problem
– check for
broken encoder leads.
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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