User Guide

To Calibrate the MIN Trimpot:

1. Adjust the MIN trimpot to the desired position

and set the Main Speed Potentiometer fully

counterclockwise.

2. Monitor the armature voltage and readjust the

MIN trimpot to the desired voltage.

C. Acceleration (ACC) – Sets the amount of time it

takes for the control voltage to reach full output.

The ACC trimpot is factory set to 1 second. To

increase the acceleration time, rotate the ACC trim-

pot clockwise. To decrease the acceleration time,

rotate the ACC trimpot counterclockwise. See

Figure 13.

D. Deceleration (DEC) – Sets the amount of time it

takes for the control voltage to reach zero. The

DEC trimpot is factory set to 1 second. To increase

he deceleration time, rotate the DEC trimpot clock-

wise. To decrease the deceleration time, rotate the

DEC trimpot counterclockwise. See Figure 14.

E. Current Limit (CL) – Sets the current limit (over-

load), which limits the maximum current to the

motor. The CL trimpot is factory set to 150% of the

nominal motor current established by the Plug-In

Horsepower Resistor®. See Table 3, on page 12.

To increase the current limit, rotate the CL trimpot

clockwise. To decrease the current limit, rotate the

CL trimpot counterclockwise. See Figure 15.

2.5 7.5

0.2

SECONDS

(SHOWN FACTORY SET TO 1 SECOND)

FIGURE 14 – DEC

TRIMPOT RANGE

100

200

150

(SHOWN FACTORY SET TO 150%)

PERCENT OF RANGE SETTING

FIGURE 15 – CL

TRIMPOT RANGE

7.5

2.5

0.2

(SHOWN FACTORY SET TO 1 SECOND)

SECONDS

FIGURE 13 – ACC

TRIMPOT RANGE