Graham Vari Speed S1000 User Manual

25
MINIMUM SPEED ADJUSTMENT (MIN)
(Clockwise Increases Minimum Speed)
1. Turn external Speed Pot fully counterclockwise (CCW).
2. Turn MAX Speed Trimpot fully CCW.
3. Produce a RUN command so that the RUN LED (green) is on
and adjust the MIN SPEED trimpot until desired minimum
speed is set. If desired minimum speed is zero, adjust trimpot
clockwise until motor starts turning, then turn the trimpot
counterclockwise until the motor barely stops turning. (This
will give the best motor speed linearity).
MIN SPEED may be adjusted from O to 50% of motor’s rated
base speed.
MAXIMUM SPEED ADJUSTMENT (MAX)
(Clockwise Increases Maximum Speed)
1. Produce a RUN command so that the motor is operating at
full load, and the external Speed Pot is turned all the way to
maximum, adjust the MAX SPEED trimpot until desired speed
is set. (Note: Extended motor speed can be achieved with
the trimpot).
MAX SPEED may be adjusted from 50% to 110% of base speed.
Caution should be taken not to exceed maximum motor name-
plate speed rating.
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Graham Vari Speed S1000 Specifications

General

Brand	Graham
Model	Vari Speed S1000
Category	Controller
Language	English