Pacific Scientific MA6410, Руководство по установке и аппаратным средствам

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3.1.3 Idle Cur rent Re duc tion
Definition
The Idle Current Reduction (ICR) function reduces the phase
current at times when no motion is commanded. Motor current is
reduced when no step commands are received for a given time.
This time can be set to 0.05 seconds, 0.1 seconds or 1.0 second.
Current to both motor windings is reduced by one-half.
The ICR function can be enabled/disabled and the time delay
between the last step command and current reduction can be set to
50 ms, 0.1 seconds, or 1.0 second using DIP switch S1 position 5
and Jumper J6 position 7-8. With the jumper installed (factory
default), ICR is disabled when DIP Switch S1 position 5 is in the
closed position and enabled with a delay of 0.1 second (current is
reduced by 50% when no step command is received for 0.1 second
when the switch is open. With the jumper removed, ICR is
enabled and the delay can be set to 0.05 second or 1.0 second by
placing DIP Switch S1 position 5 in the closed or open position
respectively.
Note: When ICR is active, both the holding torque generated by
the motor and the motor stiffness around the holding position are
reduced by approximately 50%.
Benefits
The ICR function:
•
Reduces motor and drive heating during stand-by operation
6410 Installation and Hardware Reference Manual - Rev E 3 - 5
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