Manual

17
  & " !% - The Minimum
Speed Potentiometer on the regulator has been factory
preset for drive minimum speed, 5%. By means of adĆ
justment, this speed may be raised or lowered. The reĆ
sult is the lowest moving speed the operator can set on
the SPEED dial. The control range is 5% to 30% of rated
speed.
Again, the motor speed can be determined with a
tachometer.
With the SPEED dial at zero position and using a small,
insulated slot screwdriver, carefully turn the Minimum
Speed Potentiometer until the desired minimum is
reached. Note that CW represents an  #$ CCW
represents a #$
 #   "  $
      " 
      
         # 
#  !      $

 #%!   #%! %$ - The AcĆ
celeration and Deceleration Rate Potentiometers on the
Regulator Module have been factory preset for a typical
linear acceleration rate of six seconds to maximum and
minimum speed. This time can be adjusted over a range
of 0.5 to 30 seconds from a fully stopped condition.
 &## % % - Although it will probably not be
necessary to make any adjustment in the factoryĆset
current limit value of 150% of rated load, it is possible to
change this governing value. (Individual application
speed changes or load changes on sustained overĆ
loads may require readjustment. Also, applications reĆ
quiring torque limiting or accelerating of high inertia
loads may require a change from this value.)
To reduce the torque output of the drive, turn the Current
Limit Potentiometer CCW. Note, however, that turning
CCW too far may prevent the drive accelerating to the
desired speed.
  !" $%! - IR (voltage) Compensation
is a feature which makes up for the armature resistance
of a motor that causes a drop in speed as the load is inĆ
creased. The IR Compensation Potentiometer is factoĆ
ryĆset at zero. The IR compensation feature can be adĆ
justed between O and 12% of rated load and is used
only for a voltage regulation mode. When using a
tachometer feedback, the IR Compensation PotentiomĆ
eter must be turned completely CCW.
 If the IR Compensation Potentiometer
is set too high, motor speed rising characteristics
may result. Instability and oscillation in motor
speed will result.