Shihlin electric SDP Series, Manual

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(a) When setting absolute system.
(b) When changing servo drive.
(c) When changing servo motor.
(d) When absolute position loss [AL.2C Absolute encoder error 3] alarm occurs.
When setting an absolute position system, you can establish an absolute coordinate position
by the origin setting. If you run the motor without establishing the origin, unexpected actions
may occur.
13.2.3
Use DI/DO to initialize absolute coordinates
Absolute coordinate initialization can be performed with PA29 or DI/DO. If in Pr mode, please
do the coordinate initialization by homing.
When DI ABSE is ON and DI ABSC is switched from OFF to ON, the coordinate initialization
function will be executed. The pulse number of the absolute encoder will be cleared to zero
when initiation is completed. Please refer to the figure below for the operation sequence.
Ts(ms) Tq(ms)
Min PD15 + 2
Max PD15 + 10
Description of operation sequence.
1.
When the host controller switches the ABSE signal from OFF to ON, it will need to
wait for Ts time before the system can proceed to the next step.
2.
After taking the Ts time, the controller can perform the coordinate reset function, when
the ABSC is switched from OFF to ON and after the Tq time , the pulse number of the
absolute coordinate will be cleared to zero.