KB Electronics KBWS-25D - Manual (Page 15)

Potentiometer setting. When the Enable Switch is opened, the control will coast
to the minimum speed setting.
Warning! Do not use Enable as a safety disconnect. Use only the AC line
for this purpose.
IV. SETTING SELECTABLE JUMPER (ON DUAL
VOLTAGE MODELS)
All dual voltage KBWS models contain a
selectable jumper which must be set before
the control can be used. See Figure 1, on
page 8, for the location of Jumper J1.
Motor Voltage Selection (J1): Jumper J1 is
factory set to the “180V” position for 180 Volt
motors. For 90 or 130 Volt motors, set Jumper
J1 to the “90V” position. See Figure 9.
V. MOUNTING INSTRUCTIONS
It is recommended that the control be mounted on a flat surface with adequate ven-
tilation. If the control is mounted in a closed, unventilated location, a minimum of a
12” x 12” x 12” enclosure should be used to allow for proper heat dissipation. The
maximum allowable ambient temperature at full rating is 45 ºC (113 ºF).
Care should be taken to avoid extreme hazardous locations where physical damage
can occur or where the control will be exposed to contaminants such as water, metal
chips, solvents or excessive vibration. Leave enough room around the control to
allow for AC line, motor connections and any other wiring. See Figures 2A and 2B,
on pages 9 and 10.
15
!
FIGURE 9 – MOTOR
VOLTAGE SELECTION
J1 Set for
180 Volt Motor
(Factory Setting)
J1 Set for
90 Volt Motor
J1
90V 180V
J1
90V 180V