9380 KB Electronics Vari-Drive SCR Variable Speed DC Motor Control, 115VAC

Description

SpecificationsManufacturerKB ElectronicsModel NumberKBWM-120Part Number9380Input Line Voltage115 VAC 50/60HzArmature Voltage0-90 VDCMaximum AC Load Current5.0 RMS AmpsMaximum DC Load Current3.5 DC AmpsMaximum Power1/3 HP0.25 kWUPC024822093804Speed Range (Ratio)50:1Load Regulation – Armature Feedback(0 – Full Load, 50:1 Speed Range)1 % Base SpeedLine Voltage Regulation(at Full Load, ± 10% Line Variation)1/2 % Base SpeedControl Linearity(% Speed vs. Dial Rotation)2CL/Torque Range0-200 % Full LoadAcceleration Time Range(0 – Full Speed)0.2-10 SecondsDeceleration Time Range(Full – 0 Speed)0.2-10 SecondsMin. Speed Trimpot Range0-30 % Full SpeedMax. Speed Trimpot Range50-120 % Full SpeedIR Compensation Trimpot Range0-24 VoltsMax. Allowable Ambient Temperature at Full Rating50°C/122°FStandard Features
Plug-in Horsepower Resistor® automatically calibrates IR Comp. and Current Limit (CL).
AC line and armature fusing.
Rugged all-metal NEMA 1 enclosure.
AC line ON/OFF switch with “power on” indicator lamp.
Patented KBMM™ speed control module prevents demagnetization of PM motors.
Description
The KBWM™ Vari-Drive™ adjustable speed SCR control for DC motors offers proven reliability in a rugged all-metal NEMA-1 enclosure. The Vari-Drives are equipped with the ultimate KBMM™ speed control module. They are specifically designed for fractional horsepower permanent magnet (PM) DC motors. Two models are offered. The KBWM-120 is designed for 115 VAC input and is rated 1/100 - 1/3Hp at 90 VDC. For motors rated 1/50 - 3/4 Hp at 180 VDC use Model KBWM-240.
KB’s exclusive Plug-in Horsepower Resistor®* automatically presets the drive’s IR Comp and CL circuits for safe operation on various motors. Although factory calibrated, internal trimpots for Min, Max, IR, CL, Accel and Decel can be used to fine-tune the KBWM™ for specific applications. Connections to the control are via a barrier terminal block. By changing the orientation of the front cover, the wiring can be brought in either from the bottom or the top of the control.
Motor failure due to demagnetization is eliminated by the patented ultra-fast Direct-Fed™ current limit circuit. The controls contain AC line and armature* fusing, which provide protection against catastrophic failure. Auto-Inhibit®, a KB exclusive, allows the drive to be turned on and off rapidly using the AC line without damage to the control and/or motor. The internal CL LED is a diagnostic indicator that lights when the motor is overloaded.
A conveniently located front panel lighted rocker switch controls AC line input power to the drive