Line regen
ac flux vector control
vector drive (140 pages)
Summary of Contents for Baldor BC140
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BC140 / BC140-FBR DC CONTROL Installation & Operating Manual 6/15 MN703...
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Any trademarks used in this manual are the property of their respective owners. Important: Be sure to check www.baldor.com to download the latest version of this manual in Adobe Acrobat PDF format.
Plug-in Horsepower Resistor®. The standard model, BC140, controls all motors through 3/4 HP at 115 Volt AC line input and 1-1/2 HP at 230 Volt AC line input. By installing the Auxiliary Heat Sink (see Table 1-2), the horsepower range is increased to 1 HP at 115 Volt AC line input and 2 HP at 230 Volt AC line input.
Do not connect AC power to the Motor terminals A1 and A2. Connecting AC power to these terminals may damage the control. Caution: Baldor recommends not to use Grounded Leg Delta transformer power leads that may create ground loops. Instead, we recommend using a four wire Wye. Caution: Suitable for use on a circuit capable of delivering not more than 5,000 RMS symmetrical short circuit amperes listed here at rated voltage.
Chapter 2 Installation WARNING: Do not use this drive in an explosive environment. An explosion can cause serious or fatal injury. This drive is not explosion proof. Introduction The control is designed with a NEMA-1 / IP-40 enclosure for indoor use. It is recommended that the control be mounted vertically on a flat surface with adequate ventilation.
Electrical Connections Connection terminals are shown in Figure 2-2. Figure 2-2 AC Line, Armature, Field*, and Ground Connections Barrier Terminal Block Field Armature 115 or 208/230 Volts Ground (Earth) AC Line Input DC Motor Ground (Earth) AC Power Verify AC Line voltage matches to control voltage rating, (115/208/230VAC - 50/60 Hz. 1phase). Connect AC Line to L1 and L2 terminals and tighten to correct torque (Table 2-1).
Important Considerations Motor Type The BC140 / BC140-FBR is designed for permanent magnet (PM) and Shunt Wound DC motors. Controls operated on 115 Volt AC line input are designed for 90 Volt SCR rated motors. Controls operated on 230 Volt AC line input are designed for 180 and 90 Volt (step-down) SCR rated motors.
Startup & Adjustments The Voltage Select Switch is located under the cover and must be set before applying power to the control. Figure 2-4. For 208/230 Volt AC Line Input Set the Voltage Select Switch to the 230 position (factory setting). The switch toggle should be in the lower position with 230 displayed at the top.
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For moderate changes in the maximum speed, there will be a slight effect on the minimum speed setting when the minimum is set to zero. There may be significant variation in the minimum speed setting if the minimum speed is at a higher than zero setting. Acceleration Trimpot (ACCEL) The ACCEL Trimpot is provided to allow for a smooth start over an adjustable time period each time the AC power is applied or the Main Speed Potentiometer is adjusted to a higher speed.
Troubleshooting The BC140 / BC140-FBR has LEDs to display the control’s operational status. Power On (PWR ON) LED and Pilot Light When the AC power is applied to the control and the On/Off AC Line Switch is set ON, the PWR ON LED, on the PC board, will illuminate green and the Pilot Light, on the front cover, will illuminate orange.
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Table 2-4 Troubleshooting Guide (without Optional Forward-Brake-Reverse Switch) Symptom Possible Cause Suggested Corrective Action Faulty connections or loose Check and correct connections. connections. No braking action in brake mode. Defective Brake Resistor. Replace Forward-Brake-Reverse Switch assembly. Overload condition. Remove overload. Incorrect Plug-In Horsepower Install the correct Plug-In Horsepower Resistor®.
Figure A-2 shows the connections of the Forward-Brake-Reverse Switch to the speed control and the Barrier Terminal Block. * BC144 is factory installed on BC140-FBR model. Figure A-2 Optional Forward-Brake- Reverse Switch Connections MN703...
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Optional RFI Filter (BC24-LF) Panel mount. Rated 24 Amps at 115 and 208/230 Volts AC, single phase. Complies with CE Directive 89/336/EEC (EN55022 and/or EN55011) relating to the EMC Class A Industrial Standard. MN703...
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Baldor District Offices UNITED STATES ILLINOIS NEW YORK TENNESSEE AUBURN MEMPHIS CHICAGO ARIZONA ONE ELLIS DRIVE 4000 WINCHESTER ROAD 340 REMINGTON BLVD. PHOENIX AUBURN, NY 13021 MEMPHIS, TN 38118 BOLINGBROOK, IL 60440 PHONE: 315-255-3403 4211 S 43RD PLACE PHONE: 630-296-1400...