IAI America ERC3 User Manual

Page 211

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Chapter 4 Operation

4.2 Operation in Positioner Mode

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

201

EMG

Servo

T

26ms

Lock
Release

PEND

Brake Excitation

T (before detecting excitation) = SON signal identification (6ms) + Excitation detection time (T1

+ T2) × Number of retry (10 times Max.) + Servo ON delay

time (T3)

T (after detecting excitation) = SON signal identification (6ms) + Servo ON delay time (T3)

T1 : Parameter No.30 It differs depending on the setting of excitation detection type.

Set Value = 0 ĺ 160ms

Set Value = 1, 2 ĺ 220ms

T2 : Parameter No.29 Setting of excitation phase signal detection time

It is set to 10ms in the initial setting.

T3 : Fixed to 20ms

(Note) • Excitation check operation is performed at the first servo-on process after the power is

turned ON, or when the home return is completed for the simple absolute type to

identify the magnetic poles of the motor.

• PEND would not turn ON in the pause condition.

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