176
Diagnostics and Troubleshooting
*Additional information at end of section
Error/Message Description Cause/Solution/Troubleshoot
EEnC1
Error Encoder1
Loss of
incremental
encoder channel
or differential pair
are the same for
TTL encoders.
For an incremental encoder interface , the recognition
of encoder channel breakage or defective track triggers
a fault if the voltage between two signal pairs (A+/A-,
B+/B-, N+/N-) is smaller than 2V. That is, a signal pair
cannot be at the same level. Channel pair voltages can
be measured to con rm.
If an incremental encoder does not have N+/N-
(or Z+/Z-) tracks, then the corresponding inputs
on the encoder interface card must be jumpered
high/low. That is, jumper X3A.5 (N+) to X3B.7 (+5V)
and X3A.6 (N-) to X3A.8 (0V Common). In any case,
the N+/N- are not needed and these inputs could
always be jumpered high/low.
If performing a Motor Learn in open-loop, the
incremental encoder interface card could be removed
if an encoder is not connected.
Verify the encoder power ratings & connections
(e.g. Powering a 8-30VDC rated encoder with 5V)
.
If the encoder A/B phasing is incorrect during the P
Lrn (Pole Position Learn) for a PM motor, this can be
changed in LF.28 Swap Encoder Channels.
During the P Lrn (Pole Position learn), the motor must
be able to move with little friction which may require
either a balanced car or unroped sheave. Additionally,
verify the brake is picking and fully released.
EHyb
Error Encoder
Card
Invalid encoder
interface identi er
Check for correct encoder connections/pinout. Incorrect
pinout may drag the encoder board power supply down.
Check encoder card connection to control board for bent
or missing pins and proper connection.
Otherwise, the board may be defective and should be
replaced.
E.Hybc
Error Encoder
Card Changed
Indicates the
encoder interface
card has been
changed.
This error should automatically clear itself. If not, re-
Enter the read-only setting in parameter 0.LF.26.
To Next Page
Loading...
Need help?
General
