Yaskawa Sigma-5 Large Capacity Users Manual: Design and Ma Manuale Utente Scaricare il pdf (Pagina 297)

100

101

8.1 System Configuration and Connection Example for SERVOPACK with Fully-closed Loop Control

8-9

Fully-closed Loop Control

 When Passing 1st

Zero Point in Reverse Direction and Returning after Power ON

After the power is turned on, the phase-C pulse (CN1-19, CN1-20) is not output when the external encoder

moves reverse and its head first passes the phase-C detection position. The phase-C pulse is output for the first

time when the external encoder moves forward and its head passes the detection position. After the detection

head of the encoder first passes the detection position in the forward direction, the phase-C pulse is output

when the head passes the position regardless of the direction of the encoder’s movement.

The phase-C pulse is not output

when passing the detection position

in reverse direction first.

The phase-C pulse is also output when passing this point in reverse,

because the SERVOPACK has recorded the position where the phase-C pulse was

originally output when first passing the position in the forward direction.

Scale count-up direction

Phase-C detection position

Power ON

Time

Phase-C pulse output

Rotation

1 2 ... 292 293 294 295 296 297 298 299 300 301 302 ... 389 390

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Yaskawa Sigma-5 Large Capacity Users Manual: Design and Ma Manuale Utente Pagina 297

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