Yaskawa SGDB User Manual

Page 109

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3.2 Setting Parameters According to Host Controller

97

3.2.10 Using the Reference Pulse Inhibit Function (INHIBIT)

This function causes the SERVOPACK to stop counting input reference pulses in posi-
tion control mode.

While this function is being used, the motor remains in servo locked (clamped) status.
The /P-CON signal is used to enable or prohibit this function.

When this function is used, therefore, the /P-CON signal cannot be used to switch be-
tween proportion (P) control and proportional/integral (PI) control for speed loop. (PI con-
trol is always used.)

SGDB SERVOPACK

Reference pulse

Cn-2B

Error

counter

Feedback pulse

Schematic Block Diagram for INHIBIT Function

/P-CON

1

11

/P-CON

J

How to Use Reference Pulse Inhibit Function: INHIBIT

To use the INHIBIT function, set the Cn-2B constant as follows.

Cn-2B

Control Mode Selection

Factory

Setting: 0

For Position Control Only

Enables the INHIBIT function.

Setting

Meaning

0

Does not use the INHIBIT function.

Reference pulses are always counted.
Uses the INHIBIT function.

/P-CON signal is used to enable or prohibit the INHIBIT function.

/P-CON

Meaning

OFF

Counts reference pulses.

1

ON

Prohibits the SERVOPACK from counting

reference pulses.

The motor remains in servo locked (clamped)

status.

3

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