User manual KB ELECTRONICS KBWD-15
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Manual abstract: user guide KB ELECTRONICS KBWD-15
Detailed instructions for use are in the User's Guide.
[. . . ] MODEL KBWD-15
Pulse Width Modulated
(PWM)
DC MOTOR SPEED CONTROL
WHISPER DRIVETM
INSTALLATION AND OPERATING INSTRUCTIONS
See Safety Warning on Page 1 and Application Note 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.
Model KBWD-15 Rated 5. 0 ADC @ 115 VAC 50/60 Hz KB Part No. 8600
A COMPLETE LINE OF MOTOR DRIVES
© 1999 KB ELECTRONICS, INC.
TABLE OF CONTENTS Section Page i. 2.
SIMPLIFIED SETUP AND OPERATING INSTRUCTIONS
IMPORTANT You must read these simplified operating instructions before you proceed.
Be sure AC line voltage is 115 VAC 50/60 Hz. [. . . ] 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. AC Line Connect AC line (115 VAC 50/60 Hz) to terminals L1 and L2. It is recommended that a line fuse or circuit breaker be installed with a 10 amp 125 VAC rating. Be sure motor voltage corresponds to control output voltage range (90 130 VDC). It is recommended that a fuse be installed in series with the armature; choose a fuse rating equal to the motor rating.
7
C. Do not use terminals F+ and F- for any purpose other than to power the field on a shunt wound motor. Connect motor shunt field to terminals F+ and F- for 90VDC motors with 100VDC fields. For motors with half voltage fields, 90VDC motors with 50VDC fields, connect field to terminals F+ and L1. CAUTION Shunt-Wound motors may be damaged if field remains powered without motor rotating for an extended period of time.
FIG. 4B HALF VOLTAGE FIELD
TABLE 4 FIELD CONNECTIONS (Shunt Wound Motors Only)
AC Line Voltage (VAC) 115 115 Motor Voltage (VDC) 90 90 Field Voltage (VDC) 100 50 Field Connection F+, FF+, L1
D. Main Potentiometer The control can be operated from a remote potentiometer, or from an isolated analog voltage for voltage following. 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 0-10 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 KBSI240D, P/N 9431). Connect the isolated input voltage to terminal P2 (positive) and P1 (negative). Microprocessor Input An isolated PWM signal from a microprocessor can be used to operate the control. The output frequency should be 200 Hz or greater and should be derived from an optocoupler with a transistor or operational amplifier signal output. If tachometer feedback is required, an analog tach signal must be connected to terminal block TB3. Note: For tachometer feedback, Jumper J1 must be set for the proper tach voltage, and the IR COMP must be set to minimum (CCW) position. Connect the tachometer so that when the motor rotates, the positive tach voltage lead is connected to T+ and the negative tach lead is connected to T-. 8. ) Note: If the tach voltage is connected backwards, the control will drive the motor at full speed only. [. . . ] Adjusting the CL above 150% of motor rating can cause overheating and demagnetization of some PM motors. Do not leave the motor in a locked condition for more than a few seconds since armature damage may occur. IR Compensation (IR) -- The IR comp circuit is used to stabilize motor speed under varying loads. Note: If control is in Tach Feedback mode, the IR trimpot should be set to minimum - CCW. [. . . ]
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