User manual KB ELECTRONICS KBPC-225

[. . . ] INSTALLATION AND OPERATING INSTRUCTIONS KBPC-225 SCR SPEED AND TORQUE CONTROL NEMA 4X, IP-65 DESIGNED FOR SHUNT WOUND & PM DC MOTORS RATED 3 HP @ 180 VDC TM TM See Safety Warning on Page 3 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. (Shown with optional Run-Stop-Jog Switch) A COMPLETE LINE OF MOTOR DRIVES © 1998 KB Electronics, Inc. TABLE OF CONTENTS Section i. 3 Setting Speed or Torque Mode of Drive (Jumper J1) . [. . . ] 7. ) Note: If the tach voltage is connected backwards, the control will drive the motor at full speed only. If the Forward-Brake-Reverse switch is used, provision must be made to reverse the polarity of the tachometer leads when the control is switched to "Reverse. " F. Main Potentiometer ­ The control is supplied with the main potentiometer prewired. However, the control can also be operated from a remote potentiometer, or from an Isolated analog voltage for voltage following. To operate from an external source remove white, orange and violet potentiometer leads from terminals P1, P2 and P3. The leads may be taped and left in the control. The potentiometer itself may be removed, provided a watertight seal is used to cover the hole in the front cover. 7 ­ TACHOMETER CONNECTION DIAGRAM TB3 T­ T+ TACHOMETER WIRES MUST BE CONNECTED SO THAT CORRECT POLARITY IS ACHIEVED WHEN TACH ROTATES 1. Remote Potentiometer ­ Connect remote potentiometer wires to terminals P1, P2 and P3, so that the "high" side of the potentiometer connects to P3, the "wiper" to P2 and the "low" side to P1. Analog Input ­ An isolated 0 - 5 or 0 - 10 VDC analog voltage can also be used to drive the control. Note: If an isolated signal voltage is not available, an optional signal isolator can be installed (Model KBSI-240D, P/N 9431, see Fig. 18, for signal isolator wiring diagrams). Connect the isolated input voltage to terminal P2 (positive) and P1 (negative). 10) Note: Be sure jumper J7 corresponds to proper range of input voltage 0 - 10 or 0 - 5 VDC. When the potentiometer is disconnected from P1, P2, P3 to connect an analog input signal, the MIN trimpot will have to be adjusted clockwise to achieve a 0+ output voltage. 8A ­ REMOTE POTENTIOMETER CONNECTION FIG. 8B ­ ANALOG VOLTAGE CONNECTION P3 P2 P1 G. Remote Start/Stop Switch ­ A remote Start/Stop Switch can be installed by removing the wires from the "Start, " "Com" and "Stop" terminals, and reconnecting them to a remote switch. 9) Note: To eliminate Start/Stop function, join the "Start" and "Com" Quick Connect terminals with a jumper. Inhibit ­ The control can be electronically stopped and started with the Inhibit circuit. To "Stop" the control, Terminals I1 & I2 must be joined via a contact. The control can be restarted by opening the contact. [. . . ] NOTE: In some applications, especially those requiring the motor to cycle on and off or changing from one speed to another, the OL indicator may blink indicating a transient overload. This may be a normal condition for the application. RUN-STOP-JOG Switch (P/N 9340) ­ This switch provides a momentary jog speed that can be used to "inch" a machine into position. It assembles easily to the control via quick connect terminals. [. . . ]