Related Manuals for Baldor BC141
Summary of Contents for Baldor BC141
- Page 1 BC141, BC142, BC142-5 & BC142-6 DC Control Installation & Operating Manual 5/17 MN704...
- Page 2 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.
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Page 3: Table Of Contents
Table of Contents Chapter 1 Introduction Introduction ..............1-1 Safety Notice . -
Page 4: Introduction
Introduction Introduction Thank you for purchasing the BC141, BC142, BC142-5 or BC142-6 full-wave variable speed DC motor control. The control, with Surface Mount (SMT) construction, offers the user the ultimate in reliability and performance at an affordable price. The controls contain a unique patented super-fast Direct- Fed™... -
Page 5: Receiving
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. - Page 6 Power Amps 50/60Hz) Current Current Current Current HP (kW) HP (kW) Max) Amps Amps Amps Amps BC141 0-90 .75 (.6) 1.5 (1.1) 50, 100 0-180 1.5 (1.1) 3 (2.3) 100, 200 BC142 0-90* .75 (.6) 1.5 (1.1) 0-90 .75 (.6) 1.5 (1.1)
- Page 7 MN704...
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Page 8: Installation
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. MOUNTING INSTRUCTIONS It is recommended that the control be mounted on a flat surface with adequate ventilation. Leave enough room to allow for AC line, motor connection, and other wiring that is required. -
Page 9: Ac Line Connection
Connect the AC line to Terminals L1 (Line Fuse)* and L2, Figure 2-2. For 115VAC connect neutral to L2. Catalog No. BC141 operates on 115 Volt AC line input only. Catalog No. BC142 operates on 208/230 Volt AC line input only. -
Page 10: Permanent Magnet (Pm) Motor Connection
Table 2-3 Field Connection (Shunt Wound Motors Only) Catalog Input Voltage Armature Voltage Field Voltage Terminal (VAC) (VDC) (VDC) Connections F+, F- BC141 0 -90 F+, L1 208 / 230 0 -180 F+, F- BC142 0 -90* F+, L1 F+, F- 0 -90... -
Page 11: Remote Main Speed Potentiometer Connection
Table 2-4 Plug-In Horsepower Resistor® & Armature Fuse Kit Selection 90 -130 VDC 180 VDC Approximate Plug-In HP Resistor and Plug-In HP Armature Fuse Motors (HP) Motors (HP) Motor Current Armature Fuse Kit Cat. Resistor Value Rating (Amps) (ADC) (Ω) 1/100 1/50 BR1000... -
Page 12: Enable Circuit Connection
Figure 2-4 Voltage Following Connection Terminal "P2" Terminal "P1" 0 - 9 Volts DC (Isolated) Notes: 1. If an isolated signal input is not available, or if using a 4 - 20 mA DC signal input, install the optional plug-on Catalog No. BC152 Signal Isolator. This will also allow direct connections to process controllers and microprocessors. -
Page 13: Inhibit Circuit Connection
1. The deceleration time can only be made longer than the normal coasting time of the load. 2. If the BC152, Signal Isolator option board is installed onto the BC141, or BC142 control, the ENABLE circuit will not funciton as described. If an ENABLE feature is required for the application, connect a N.O. - Page 14 Seven (7) Volt per 1000 RPM Tachometer Connect the tachometer positive lead (+) to Terminal T and the negative lead (-) to Terminal I2. Figure 2-8 DC Tachometer Connection (7 Volts Per 1000 RPM) Terminal "T" Terminal "I2" 1000 DC Tachometer Fifty (50) Volt per 1000 RPM Tachometer Connect the tachometer positive lead (+) to Terminal B and the negative lead (-) to Terminal I2.
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Page 15: Armature Switching And Dynamic Braking
J2, Motor Voltage and DC Tachometer Selection Jumper J2 is factory set to the “90” position on Catalog No. BC141, for 90 Volt DC motors, and set to the “180” position, on Catalog Nos. BC142, BC142-5 and BC142-6, for 180 Volt DC motors. To set Catalog No. -
Page 16: Trimpot Adjustments
Figure 2-11 Motor Voltage & DC Tachometer Selection (Jumper J2) Catalog No . BC141 Catalog Nos. BC142, BC142-5 and BC142-6 J2 Set for J2 Set for J2 Set for J2 Set for J2 Set for 90 Volt Motor 180 Volt Motor... - Page 17 Note: Readjusting the MIN Trimpot will affect the maximum speed setting. Therefore, it is necessary to readjust the MAX Trimpot if readjusting the MIN Trimpot. It may be necessary to repeat these adjustments until both the minimum and maximum speeds are set to the desired levels. Maximum Speed Trimpot (MAX) The MAX Trimpot sets the maximum speed of the motor when the Main Speed Potentiometer is set fully clockwise.
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Page 18: Operation
3. Run the motor with the maximum load and adjust the IR Trimpot so that the motor speed under load equals the unloaded speed recorded in step 2. 4. Remove the load and recheck the RPMs. 5. If the unloaded RPM has changed, repeat steps 2 - 4 for more exact regulation. The control is now compensated to provide minimal speed change due to changing loads. -
Page 19: Optional Accessories
Table 2-4 Troubleshooting Guide (without Optional Forward-Brake-Reverse Switch) Symptom Possible Cause Suggested Corrective Action Faulty wiring or loose connections Check and correct connections. to the reversing switch. Motor will not run in Forward or Reverse direction. Forward-Brake-Reverse Switch is Replace Forward-Brake-Reverse Switch defective. - Page 20 MN704-0517 Baldor Electric Company P.O. Box 2400, Fort Smith, AR 72902-2400 U.S.A., Ph: (1) 479.646.4711, Fax (1) 479.648.5792, International Fax (1) 479.648.5895 www.baldor.com © Baldor Electric Company All Rights Reserved. Printed in USA. MN704 (A40249) - Rev E 5/17...