IAI America ERC3 User Manual

Page 212

Chapter 4 Operation

4.2 Operation in Positioner Mode

4.2.3 Operation in Positioner Mode 2 (Operation Using PIO Converter)

202

(3) Home Return (HOME, HEND, PEND, MOVE)

Input

Output

PIO signal

HOME

HEND

PEND

MOVE

Patterns 0 to 1

{

Patterns 2 to 4

{

Pattern 5

(Note 1)

{

: Available, u: Unavailable

Note 1 Pattern 5 cannot make a home return with HOME signal. Refer to 4.2.3 [8] (1) for how

to perform a home-return operation.

The HOME signal is intended for automatic home return. The HOME signal is caught at the

rising edge (ON edge) to start the home return. At completion of the home return, home return

completion signal HEND is turned ON. The home-return complete signal HEND is kept ON

unless the memory of origin point is lost for a reason such as alarm. During the home return

operation, positioning completion signal PEND and moving signal MOVE are set to OFF and

ON, respectively.

Homing Completion Signal

HEND

(Controller→PLC)

Positioning Completion Signal

PEND

(Controller→PLC)

Moving Signal

MOVE

(Controller→PLC)

Home Return Signal

HOME

(PLC→Controller)

[Operation of Actuator]

1) With the HOME signal being ON, the actuator moves toward the mechanical end at the

home return speed. The movement speed is 20mm/s.

2) The actuator is turned at the mechanical end and stopped at the home position. The

moving distance is the value set by Parameter No.22 “Home return offset level”.

Caution: In the home reverse specification, the actuator moves in the reverse direction.

Make sure to refer to Chapter 7 Parameter when a change to Parameter

No.22 “Home return offset level”.

Mechanical end

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