User manual KB ELECTRONICS KBIC-SERIES

[. . . ] KBIC® Solid State SCR DC Motor Speed Controls ® Patented Ultra Fast CL Circuit Prevents Demagnetization in PM Motors See table 2 page 4 for KBIC models covered by this manual Installation and Operating Instructions See SAFETY WARNING on page 4 Basic KBIC ® PATENTED *See Page 3 TM A COMPLETE LINE OF MOTOR DRIVES ©1996 KB ELECTRONICS, INC. TABLE OF CONTENTS Section i. 5 Plug-in Horsepower Resistor® Chart . SAFETY WARNING! This product should be installed and serviced by a qualified technician, electrician or electrical maintenance person familiar with its operation and the hazards involved. Proper installation, which includes wiring, mounting in proper enclosure, fusing or other overcurrent protection and grounding, can reduce the chance of electric shocks, fires or explosion in this product or products used with this product, such as electric motors, switches, coils, solenoids and/or relays. [. . . ] Do not switch the armature in and out of circuit or catastrophic failure will result. If armature switching is required for dynamic brake or reversing, use model KBRG, KBPB or KBCC-R suffix controls. NOTE: (Shunt motors only) For 90V DC motors with 50VDC fields and 180VDC motors with 100VDC fields, use half voltage field connections F+ and L1. Voltage Following ­ All models can be controlled with an isolated analog reference voltage (0-7 VDC) in lieu of the main speed potentiometer. The voltage is connected to P2 (+) and F-. The control output voltage will linearly follow the input voltage. The source impedance of the input should be 10K ohms or less. The Min and Max trimpots are rendered inoperative in the voltage following mode. Use auxiliary trimpots for scaling and to limit the control range. If the input signal is not isolated, or is a current signal (4 - 20 mA), the KBSI-240D or SI-5 Barrier Terminal Board Signal Isolator must be used. It will allow direct connection to process controllers and microprocessors. The voltage feeding P2 and F- must be isolated from the AC line. Do not earth ground P2 or F- to setup a zero or ground reference. Do not bundle signal wires to P2 and F- with AC line or motor connections. If signal wires are over 18 inches, use shielded cables. Fusing ­ The KBIC® has provision for adding a built-in AC line fuse and armature fuse*. The AC line fuse protects the control against catastrophic failure. If the fuse blows, the control is miswired, the motor is shorted or grounded, or the KBIC® control is defective. The armature fuse provides overload protection for the motor and control. Choose the proper size armature fuse and AC line fuse (see fuse chart table 4, p. 5) by multiplying the maximum DC motor amps by 1. 7. Armature and AC line fuse kits are available from your distributor. [. . . ] The KBIC can be used with the KBSI to drive multiple motors: (a) (b) From a single main potentiometer From a single main motor. 5A ­ MASTER SLAVE CIRCUIT ® ** connect high side of potentiometer * A 10K ratio potentiometer is used to control up to terminal "P" (" QD) to (10) "slave" motors. If a 5K ratio potentiometer is used, up to (5) "slave" motors can be controlled. 1) Multiple KBIC® controls should be powered from the same phase AC line. [. . . ]