
11
II. PLUG-IN HORSEPOWER RESISTOR®
A Plug-In Horsepower Resistor® (PHR) must be
installed for the KBWS to operate. Select a Plug-
In Horsepower Resistor® to match the motor
characteristics to the control. See Figure 3 and
Table 3 on page 12. The PHR plugs into the two
female terminals that are provided on the KBWS.
Plug-In Horsepower Resistors® are supplied
separately by your distributor.
TABLE 2 – GENERAL PERFORMANCE SPECIFICATIONS
FIGURE 3 – PLUG-IN
HORSEPOWER RESISTOR®
CAUTION: Be
sure Plug-In
Horsepower
Resistor® is
inserted com-
pletely into
mating sockets.
Parameter Specification Factory Setting
AC Line Voltage Regulation (% Base Speed) 0.5 —
Load Regulation (% Base Speed) ± 1 —
Armature Voltage Range at 115 Volt AC Line Input (Volts DC) 0 – 130 90
Armature Voltage Range at 208/230 Volt AC Line Input (Volts DC) 0 – 130, 0 – 220 180
Maximum Load Capacity (% for 2 Minutes) 150 —
Switching Frequency at Motor (kHz) >16 —
Signal Following Input Voltage Range (Volts DC) 0 – 5 —
Maximum Speed Trimpot (MAX) Range (% Base Speed) 70 – 100 100
Minimum Speed Trimpot (MIN) Range (% Base Speed) 0 – 30 0
Acceleration Trimpot (ACC) Range (Seconds) 0.2 – 10 1
Deceleration Trimpot (DEC) Range (Seconds) 0.2 – 10 1
Current Limit Trimpot (CL) Range (% Full Load) 0 – 200 150
IR Compensation Trimpot (IR) Range at 90/130 Volts DC Output (Volts DC) 0 – 10 5
IR Compensation Trimpot (IR) Range at 180/220 Volts DC Output (Volts DC) 0 – 20 10
Speed Regulation (50:1 Speed Range) (% Base Speed) 1 —
Speed Range (Ratio) 50:1 —
Operating Temperature Range (ºC) 0 – 45 —
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