Infranor XtrapulsCD1-a Series, Руководство пользователя

Страница: 47 / 60

47
XtrapulsCD1-a
Chapter 7 - Troubleshooting
Remark: In the TTL incremental encoder configuration without HES , the motor Phasing procedure must be
executed again after a Counting fault release.
For the Sin/Cos encoder configuration:

Check for the correct encoder supply voltage value

Check for the correct encoder-drive-motor ground and shield connections with regard to the recommendations
of
chapter 4 .

Check for the correct encoder channels A and B, and the R reference signal waveforms.

Check that the Motor encoder resolution and the Zero mark pitch parameter values are correct.

Check that the number of encoder pulses between two successive R reference signals is equal to the Motor
encoder resolution value multiplied by the Zero mark pitch parameter value. If this condition is not fulfilled,
the encoder counting protection must be disabled in order to cancel the Counting fault. The encoder counting
protection can be disabled by setting at 0 the Zero mark pitch parameter.

For a linear motor with only one R reference signal over the entire motor travelling range, the Zero mark
pitch parameter must be set at 15. In this case the encoder counting protection is checking that the encoder
measured position has always got the same value when the R reference signal is activated (no position
measurement drift).
Remark
: In the Sin/Cos encoder configuration without HES , the motor Phasing procedure must be executed
again after a Counting fault release.
1.11 - "HES" FAULT
For the Incremental encoder & HES configuration:

Check that the HES are correctly wired on the drive X3 connector (with 60° type HES, check the various
wiring combinations to find the right wiring order).

Check for the correct HES supply voltage value.

Check for the correct Motor encoder resolution parameter value.

Check that the HES-drive-motor ground connections and shields answer the requirements of chapter 4 .
When the encoder counting protection has been disabled, the drive is only checking that the encoder
pulses frequency is lower than 1.5 times the maximum encoder frequency. The maximum encoder
frequency is calculated into the drive according to the
Motor encoder resolution parameter value
and the Maximum speed parameter value. In this case, encoder pulse noise at a frequency lower
than 1.5 times the maximum encoder frequency may involve uncontrolled motor movements that may
be dangerous for operator and machine.
!