User Guide

The KBWS contains built-in isolation for all signal inputs. This includes input signal

voltage, Main Speed Potentiometer terminals, Inhibit Circuit and +5VDC power sup-

ply. The dual voltage models contain a jumper to select motor voltage and special

circuitry which automatically accepts AC Line input voltages of 115 or 208/230 Volts

AC without having to make a jumper selection. See Application Note, Section VII,

on page 18.

Optional accessories for the KBWS include a DIN Rail Mounting Kit, a Product

Safety Module (PSM) and an AC Line Fuse Kit. See Section XI, on page 23.

STANDARD FEATURES

A. Plug-In Horsepower Resistor® –

Automatically calibrates IR Compensation and

Current Limit.

B. Diagnostic LEDs – Power On (PWR ON) and Current Limit (CL).

C. Short Circuit Protection – Protects the control from a short circuit at the motor.

D. Isolated Signal Input Circuit – Eliminates the need for an external signal isolator.

E. Protection Features – Undervoltage protection. MOV input transient protection.

AC Inrush current limit protection.

F. Inhibit Circuit – Provides electronic coast-to-stop.

G. Auto AC Line Select – Control automatically adjusts for 115 or 208/230 Volt AC line

input (dual voltage models).

H. Motor Voltage Selection – Allows motor voltage to be set to 90/130 or 180 Volts DC

(dual voltage models).