YASKAWA E-V Series User Manual page 129

5 Operation
5.3.6 Encoder Pulse Output
(3) Encoder Output Signals from SERVOPACK with a Linear Scale by Reinshaw
The output position of the zero point signal (Ref) may vary in some models of the linear scale made by Ren-
ishaw.
If using a Renishaw model, the phase-C pulses of the SERVOPACK are output at two positions.
For details on the specifications of the zero-point signals for a linear scale, refer to the manual for the Ren-
ishaw linear scale.
• When Passing the 1st Zero Point Signal (Ref) in Forward Direction after Power ON
Machine position (Forward direction)
Power ON
Zero point signal
Ref
Phase-C
• When Passing the 1st Zero Point Signal (Ref) in Reverse Direction after Power ON
Machine position (Forward direction)
Power ON
Zero point signal
Ref
Phase C
5-26
No zero point signal (Ref) is sent from the linear scale.
However, a phase-C pulse will be sent from the SERVOPACK
when moving in the reverse direction, because it is the same
position from which a phase-C pulse was sent from the
SERVOPACK when moving in a forward direction.
No zero point signal (Ref) is sent from the linear scale.
However, a phase-C pulse will be sent from the SERVOPACK
when moving in the reverse direction, because it is the same
position from which a phase-C pulse was sent from the
SERVOPACK when moving in a forward direction.
Time
Second pulse is half as wide
as the phase-A pulse.
Time
Second pulse is half as wide
as the phase-A pulse.