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5 push & hold mode – IAI America ERC User Manual

Page 108

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7.5 Push & Hold Mode

First, cause the position complete signal to turn ON by referring to 7.1, “How to Start.”
Example of use in operation)

The actuator is caused to move back and forth in the push & hold mode and
positioning mode. The position 280 mm from the home is set as position 1, and
the position 40 mm from the home is set as position 2.

Movement to position 1 is performed in the push & hold mode (the actuator is
caused to contact the load and push it in the counter-motor direction). The
maximum push amount at position 1 is set as 15 mm, and the current-limiting
value during the push & hold operation by the motor is set as 50%. Movement
to position 2 is performed in the positioning mode. The travel speed to position
1 is set as 200 mm/sec, and that to position 2 is set as 100 mm/sec.

ERC controller





































P




L




C

[9] [7] [4] [2]

[1]

[6]




[10] [8] [5] [3]

Signal name

Start

Command position 1

Command position 2

Command position 4

*Pause

Position complete

Home return completion

Zone

*Alarm

PIO

Category

Input








Output

Reference flow

Select/enter command position 1.

Start input ON

Movement to position 1 starts.

Position complete output OFF

Start input OFF

Position complete output ON

Select/enter command position 2.

Start input ON

Movement to position 2 starts.

Position complete output OFF

Start input OFF

Movement to position 2 completes.

Move at slow speed after passing position 1.

Load is pushed. Stepper motor current
rises to the current-limiting value.

Position complete output turns ON 0.1 mm
before position 2.

[1]

[2]

[3]

[4]




[5]

[6]

[7]


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[9]

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