User Guide

B. J3 – Motor Armature Voltage – Select the desired armature voltage by placing J3 in the

proper position, “90" or “180.” Note: For 115 volt AC Line input, the armature voltage

must be set to “90.” For 230 input, the armature voltage normally is set for “180.”

However, it is also possible to set the armature voltage to “90" for step-down operation.

(See fig. 2 and table 4.)

FIG. 1 – AC LINE VOLTAGE

JUMPER SETTING

FIG. 2 – MOTOR ARMATURE

VOLTAGE JUMPER SETTING

115VAC 230VAC 90VDC 180VDC

TABLE 4 – RELATIONSHIP of AC LINE INPUT AND MOTOR

VOLTAGE with J1, J2 and J3 JUMPER POSITION

AC INPUT VOLTAGE J1, J2 POSITION J3 POSITION MOTOR VOLTAGE

115 115 90 90

230 230 180 180

230 230 90* 90*

*A 90VDC motor can be used with a 230VAC line. However, speed range may be reduced and

motor overheating may result.

C. J4 – Armature Current – Select the J4 position (1.7, 2.5, 3.3, 5, 7.5) closest to the rated

motor current. (Note the maximum output current is set to 150% of the J4 position, which

may be readjusted using the FWD CL and REV CL trimpots.)

TABLE 5 – JUMPER J4 POSITION vs MOTOR HORSEPOWER

Jumper J4 Position

Motor Current

(DC Amps)

Motor Horsepower

90VDC 180VDC

5.0A

2.5A

1.7A

3.3A

7.5A

7.5A 3/4 1

5.0A 1/2 1

3.3A 1/3 3/4

2.5A 1/4 1/2

1.7A 1/6 1/3

D. J5 – Analog Input Voltage –

Jumper J5 is set to the “15V” po-

sition for potentiometer operation.

If the control is to be operated

from an isolated 0 – ±10VDC

signal, set J5 to the “10V” posi-

tion. (See sec. V, F, p. 7.) (See

fig. 3.)

FIG. 3 – JUMPER J5 SETTING

Potentiometer Operation Signal Following