10
Chapter 2 Adjustments
2.1 Potentiometer adjustments
SPEED
Speed potentiometer.Turn the potentiometer clockwise (cw) to increase the
maximum speed and counter-clockwise (ccw) to reduce the maximum
speed.
The range of the adjustment is +/-20%.
OFFSET
Offset adjustment.Adjust this potentiometer to cancel any offset in the
external speed ref. signal.
(Max ref. compensation +/- 200mV).
GAIN
With this adjustment we can improve the dynamic behaviour of the servomotor.With a clockwise turn (cw)we
increase the gain of the PI “speed stage”, therefore, improving the response.
DER (DAMP)
Turn the potentiometer clockwise (cw)to increase the derivative (damping) effect,reducing the amount of
overshoot in the system response.
ACC
The solder bridges S1-S3 allow insertion of the acc/dec function (ramp). With this potentiometer we can
adjust the slope of the ramp in acceleration and deceleration. Turning the potentiometer clockwise
(cw) increases the ramp time from 0,1 to 1 Sec (with 10 V reference).
It is also possible to increase or decrease the pre-set max time of acc/decby opening solder bridge S2 and
inserting resistance RAMP.
(See chapter RAMP TIME ADJUSTMENT)
SPEED
OFFSET
GAIN
DER
ACC
(DAMP)
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