User manual KB ELECTRONICS KBWD

[. . . ] Electrical Ratings & Mechanical Specifications . Plug-in Horsepower Resistor® Chart . 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. Install the correct Plug-in Horsepower Resistor® according to motor current and/or horsepower. [. . . ] 0. 5 Analog Input Voltage (Voltage Following) (VDC) . 0 ­ 10 Speed Potentiometer - 5 watt (Ohms) . 5K *Based on motor having linear IR Comp characteristics. A Plug-in Horsepower Resistor must be installed to match the control to the motor horsepower and armature current. Plug-in Horsepower Resistors® are stocked by your distributor. CAUTION: Be sure Plug-in Horsepower Resistor® is inserted completely into mating socket. ® PLUG-IN HORSEPOWER RESISTOR® 3 FIG. 1 ­ CONTROL LAYOUT Illustrates factory setting of jumpers and approximate setting of trimpots 4 The Plug-in Horsepower Resistor® will match the motor characteristics to the control without having to calibrate the current limit (CL) and IR Compensation (IR) for most applications. TABLE 2 ­ PLUG-IN HORSEPOWER RESISTOR® CHART Motor Armature Current (Amps DC) 3. 3 ­ 5. 0 2. 5 1. 3 ­ 2. 0 0. 7 ­ 1. 0 0. 4 ­ 0. 6 0. 1 ­ 0. 3 Plug-in Horsepower Resistor® (Ohms) 0. 1 0. 18 0. 25 0. 51 1. 0 2. 0 90 VDC SCR Rated Motor Horsepower 1/3 ­ 1/2 1/4 1/8 ­ 1/6 1/15 ­ 1/10 1/30 ­ 1/20 1/50 ­ 1/100 ® 130 VDC PWM Rated Motor Horsepower 1/2 ­ 3/4 1/3 1/6 ­ 1/4 1/12 ­ 1/8 1/20 ­ 1/15 1/30 ­ 1/50 1. For motor current not on chart use next lowest value Plug-in Horsepower Resistor . Disregard the horsepower ranges marked on Plug-in Horsepower Resistor® since they are not correct for PWM controls. II. MOUNTING The KBWD controls should be mounted on a flat surface and located in an area where it will not be exposed to contaminants such as water, metal chips, solvents or excessive vibration. Enclosure ­ When mounting in an enclosure, the air space should be large enough to provide adequate ventilation. Do not use terminals F+ and F- for any purpose other than to power the field on a shunt wound motor. To "Stop" the control, terminals I1 & I2 must be shorted via a contact. The control can be restarted by opening the contact. Note: The Inhibit should not be used as a safety disconnect. 10) Note: The Inhibit Circuit is not isolated. Do not earth ground inhibit leads. FIG. Read Safety Warning on page 1 before attempting to operate the control or severe injury or electrocution can result. After the control has been set up properly and the wiring has been completed, the start-up procedure can begin. If AC power has been properly connected to the control, the "ON" LED indicator will illuminate. Before starting, be sure the main potentiometer is in the minimum position. To start the control, the potentiometer knob should be rotated clockwise; the motor should begin to rotate. Note: If the motor rotates in the incorrect direction, it will be necessary to disconnect the main AC power and reverse the armature wires. [. . . ] Note: If control is in Tach Feedback mode, the IR trimpot should be set to minimum - CCW. Readjust the IR trimpot as follows: 11 1. Run the motor at approximately 30-50% of rated speed under no load and measure actual speed. Rotate IR trimpot so that the loaded speed is the same as the unloaded speed measured in E1. [. . . ]