VII. OPERATION.
(You must read the Safety Warning on page 5 before proceeding).
After the KBWS has been properly setup, the startup procedure can begin. If AC power
has been properly brought to the control, the PWR ON LED will illuminate green. Before
starting, be sure that the Main Speed Potentiometer is set to the zero speed position.
The motor should begin to run as the Main Speed Potentiometer is rotated clockwise.
Note:
If the motor runs in the incorrect direction, it will be necessary to disconnect
the AC line, reverse the motor leads and repeat the startup procedure.
VIII.AC LINE FUSING
The KBWS does not contain AC line fuses.
Most electrical codes require that each
ungrounded conductor contain circuit protec-
tion. It is recommended to install a fuse
(Littelfuse 326, BUSS ABC or equivalent) or a
circuit breaker in series with each unground-
ed conductor. An AC Line Fuse Kit (P/N
9851) is available. Check all electrical codes
that apply to the application. See Table 4.
IX. TRIMPOT ADJUSTMENTS
The KBWS contains trimpots which are factory set for most applications. Figure 1,
on page 8 illustrates the location of the trimpots and their approximate calibrated
positions. Some applications may require readjustment of the trimpots in order to
tailor the control for a specific requirement. Readjust trimpots as described below.
18
5
Model
Recommended AC Line
Fuse (Amps RMS)
KBWS-12
KBWS-15
KBWS-22D
KBWS-25D
10
5
10
TABLE 4 – RECOMMENDED
AC LINE FUSE
Application Note: This control is not recommended for applications where
the AC line is to be rapidly cycled on and off.
