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UNIT FUNCTIONS
RUN/STOP:
A closed contact between the RUN and V+ will start the control
as long as the INHIBIT is not activated. At the time of the START
command, the unit will follow the adjustable ACCEL ramp to the
Speed Input setting. Opening the contact between RUN and V+
will initiate a STOP command to the unit. The control will follow
the setting the adjustable DECEL ramp to zero speed.
INHIBIT (INH):
The INHIBIT input is the priority logic command, overriding all
others. When activated, the INHIBIT will turn the control’s
armature output off, regardless of a RUN or Speed Command
input. As the INHIBIT circuit is activated, any DECEL ramp the
control is set for will be cancelled. This allows the control’s
output and internal logic to reach their OFF-state as fast as
possible. The time it takes for the motor to reach a zero speed
condition, however, will be dependent on the inertia present on
the motor’s shaft.
To provide the optimum flexibility for various logic schemes, the
INHIBIT may be set for use with Normally Open (NO) or Normally
Closed (NC) types of contacts. This allows the S1000 INHIBIT
circuit to be activated during either an Open or a Closed contact
condition
.
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