SAF OPAL SS6 - Manual (Page 32)

OPAL SS6 Reduced Voltage Starters
Page 25
5.5 LINEAR ACCEL/DECEL OPTION
CA385 - LINEAR ACCEL/DECEL CARD
This option card combined with a 60 tooth magnetic pulse pick-up or a tachometer provides
linear acceleration and deceleration independent of load. The ramp reference can be via
internal ramp generator or an auxiliary reference. A form C dry contact indicating when the
unit is running is available for external use and illuminated via LD1.
5.5.1 POTENTIOMETERS
POT NAME DESCRIPTION
RV1 STAB Adjustment for stability of the ramping transition
RV2
TACH
SCALE
Sets up speed feedback for the regulator by adjusting voltage at TP1
(below JP2), CW decreases voltage at TP1
For internal ramp set TP1 for -9.2V or less at full speed
For aux ref set TP1 = maximum reference -0.667 or slightly less at
full speed
RV3 DECEL Adjusts decel time of ramp, 5 - 50 seconds, CW increases time
RV4 ACCEL Adjusts accel time of ramp, 5 - 50 seconds, CW increases time