User manual KB ELECTRONICS KBRG-212D

[. . . ] INSTALLATION AND OPERATING INSTRUCTIONS REGENERATIVE DRIVE MODEL KBRG-212D KB Part No. 8819 VARIABLE SPEED SCR CONTROL DESIGNED FOR SHUNT WOUND and PM DC MOTORS FULL WAVE · 4 QUADRANT ! See Safety Warning on Page 2 The information contained in this manual is intended to be accurate. However, the manufacturer retains the right to make changes in design which may not be included herein. See Page 2 TM A COMPLETE LINE OF MOTOR DRIVES © 1997 KB Electronics, Inc. TABLE OF CONTENTS Section i. Page KBRG-212D Simplified Operating Instructions . [. . . ] Be sure to install insulating disk between potentiometer and inside of front panel. Enclosure ­ When mounting the KBRG-212D in an enclosure, it must be large enough to allow the proper heat dissipation. A 12"12"24" enclosure is suitable at full rating (7. 5 Amps). Smaller enclosures may be used if full rating is not required. V. WIRING. Warning!Read Safety Warning before attempting to use this control. Warning!To avoid erratic operation do not bundle AC Line and motor wires with potentiometer, voltage following, enable, inhibit or other signal wiring. Use shielded cables on all signal wiring over 12" (30 cm) ­ Do not ground shield. Wire control in accordance with National Electrical Code requirements and other local codes that apply. A "normal blo" 15 amp fuse or circuit breaker should be used on each AC line conductor which is not at ground potential (do not fuse neutral or grounded conductors). 11 for fuse information. ) Wire control in accordance with connection diagrams (see figures 6, 7A, 7B on page 7 and figures 10 - 12 on page 10). A separate AC Line switch or contactor must be wired as a disconnect switch so that contacts open each ungrounded conductor of the control. See table 6 for terminal block wiring information. TABLE 6 ­ TERMINAL BLOCK WIRING INFORMATION Terminal Block Designation TB1 TB2 TB3 Connection Designation Logic Connections F+, FL1, L2, M2, M1 Supply Wire Gauge* Minimum 22 22 22 Maximum 14 14 12 Maximum Tightening Torque (lbs inch) 3. 5 3. 5 12 6 A. AC Line ­ Connect AC Line to terminals L1 and L2. (Be sure jumpers J1 and J2 are set to match the AC Line voltage used. ) (See table 5, p. Motor Armature ­ Connect motor armature to terminal M1 and M2. (Be sure jumper J4 is set to match motor voltage. ) (See table 5, p. Ground ­ Be sure to ground (earth) control via green screw located on chassis. Field ­ For Shunt Wound motors only. Do not use F+ and F- terminals for any other motor type. Connect motor shunt field to terminals F+ and Ffor 90VDC motors with 100VDC fields and 180VDC motors with 200VDC fields. For motors with half voltage fields, 90VDC motors with 50VDC fields and 180VDC motors with 100VDC fields, connect field to terminals F+ and L1. [. . . ] Adjusting the CL above 150% of motor rating can cause overheating and demagnetization of some PM motors. IR Compensation (IR Comp) ­ The IR Comp is used to stabilize motor speed under varying loads. Readjust the IR Comp trimpot as follows: Initially set trimpot to factory position (approximately 10 o'clock). Run motor at approximately 30 ­ 50% of rated speed under no load and measure actual speed. [. . . ]