Maxsine EP3 AC Series, User Manual

Page: 115 / 246

4.11 Over-travel protections
105
Data form
8 bits. The contents are showing as following picture.
(note):
1.the range of null circle is one of “P+00000”(CR) or “P-00000”(CR)
2.the range of rotating volume is “+32767
～
― 32768” . If it exceeds
this range, the data “+32767” will turn to “-32768” and the data of
“-32768” will turn to “+32767”.
4.11 Over-travel protections
The security function of over travel protection is refers that when the movement part of the
machinery just exceed the design safe range of motion, the limit switch acts and forces the
servomotor to stop. A schematic diagram showing the over travel protection as follows:
The limit switch suggested using normal closed type. It is close in the safety range and it is
open in over travel range. The limit switch on the right connects to CCW forbid terminal (CCWL)
and the limit switch on the left connects to CW forbid terminal (CWL).
This security function of over travel protection can be set for use or neglect by setting the
parameter P097. The limit signal must be connected for the use, or do not need this signal in case
of neglect.
The default value of P097 (for CCWL and CWL) is all neglects. Must modify parameter
P097 if needs to use. Under the over travel condition, use the reverse command to withdraw back
from the over travel condition.