User manual KB ELECTRONICS KBPI-SERIES

[. . . ] INSTALLATION AND OPERATING INSTRUCTIONS KBPI SERIES SCR INDEXING & CYCLING CONTROLS -- Designed for Indexing Applications -- FOR PM DC MOTORS RATED (1/6 ­ 1 HP @ 90VDC) and (1/3 ­ 2 HP @ 180VDC) TM This control will not operate without installing the correct armature fuse ­ supplied separately. See Page 2 TM This Manual Covers the Following Models Model No. KBPI-240D KBPI-240DR Operation Unidirectional Reversible Part No. 8500 8501 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. A COMPLETE LINE OF MOTOR DRIVES © 1998 KB Electronics, Inc. TABLE OF CONTENTS Section Page i. [. . . ] This fuse should not blow unless the motor is shorted or another catastrophic failure occurs. An armature fuse replacement such as Littelfuse 326 or Buss ABC ceramic fuse or equivalent can be used. Fuse supplied separately from your distributor. TABLE 7 ­ ARMATURE FUSE CHART Motor Horsepower 90VDC 1/6 1/4 1/3 1/2 3/4 1 180VDC 1/3 1/2 3/4 1 1 2 Approx. DC Motor Current Amps 1. 7 2. 5 3. 3 5. 0 7. 5 10. 0 Fuse Rating (AC Amps) 2 4 5 8 12 20 Note: Armature fuse is not supplied and must be installed for control to operate. 11 VII. Do not use any of the logic functions (STP, RTN) as an emergency stop since they are not fail safe. Use only an AC line (L1, L2) disconnect for that purpose. To prevent erratic operation, do not bundle logic wiring with AC line and motor wires. Use shielded cables on logic wiring over 12" (30 cm) in length. The control contains several logic functions which are described in detail below. connections are made to terminal block TB3. "RUN" ­ A momentary contact closure between terminals "RUN" and "RTN" latches the control into a continuous run mode. To stop the control, the stop circuit must be activated by opening the contact between the "STP" and "RTN" terminals. Note: All momentary closures must be present for no less then 50 milliseconds and a normally closed (NC) contact must be maintained between the "STP" and "RTN" terminals in order for the drive to run. "JOG" (Stop) ­ A maintained contact closure between terminals "JOG" and "RTN" will cause the control to run continuously. The drive will run only as long as the contact is closed and stop when it is opened. 9 ­ JOG COMMAND USED AS STOP Application Note: The "JOG" can also be used as a normally open (NO) STOP command. When the control is started with the momentary "RUN" command, it can be stopped by connecting a momentary contact between the "JOG" and the "RTN" terminals. (Note: The control can also be stopped by opening the "STP" contact. ) 12 C. 10 ­ STOP COMMAND a nor-mally closed (NC) contact between terminals "STP" and "RTN. " Opening the contact activates the control's Dynamic Brake producing a rapid stop. (Note: A normally open (NO) limit switch or contact can also be used to activate the stop command. To use a (NO) contact move jumper JS to the "NO" position). [. . . ] See Start-up Procedures and Application Section. Unit is in current limit ­ See if "OL" indicator is lighted. With power removed from unit and motor leads disconnected, check motor for worn or improperly seated brushes. Improper wiring ­ check AC line and motor wiring. [. . . ]