ABB BALDOR BC254 Installation & Operating Manual
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ABB BALDOR BC254 Installation & Operating Manual

ABB BALDOR BC254 Installation & Operating Manual

Regen dc motor speed control
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BC254/BC254-FSR
Regen DC Motor
Speed Control
NEMA 4X, IP65
Installation & Operating Manual
6/15
MN730

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Summary of Contents for ABB BALDOR BC254

  • Page 1 BC254/BC254-FSR Regen DC Motor Speed Control NEMA 4X, IP65 Installation & Operating Manual 6/15 MN730...
  • 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.

  • Page 3: Table Of Contents

    Table of Contents Chapter 1 Introduction Introduction ..............1-1 Safety Notice .
  • Page 4 MN730...

  • Page 5: Introduction

    Chapter 1 Introduction Introduction Thank you for purchasing the BC254/BC254-FSR. Baldor is committed to providing total customer satisfaction by producing quality products that are easy to install and operate. The control is manufactured with surface mount components incorporating advanced circuitry and technology. The BC254/BC254-FSR is a Full-Wave Regenerative Drive in a NEMA-4X/IP65 washdown and watertight enclosure.

  • Page 6: Receiving

    SAFETY NOTICE Continued Caution: Disconnect motor leads (A1 and A2) from control before you perform a Dielectric Withstand test on the motor. Failure to disconnect motor from the control will result in extensive damage to the control. The control is tested at the factory for high voltage / leakage resistance as part of Underwriter Laboratory requirements.

  • Page 7: 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 Mount the BC254/BC254-FSR in a vertical position (connection terminals in down or up position) on a flat surface free of moisture, metal chips, or corrosive atmosphere.
  • Page 8 Figure 2-2 Control Board Component Location Enlarged View of Trimpots RACC FACC FWDCL RESP START/STOP SWITCH (BACK VIEW) RACC FACC FWDCL RESP BLACK WHITE LED BOARD NTCL CON1 MAIN SPEED PWR ON POTENTIOMETER (BACK VIEW) LOW (WHITE) WIPER (ORANGE) HIGH (VIOLET) NOTES: -15V TERMINAL IS USED FOR REVERSE DIRECTION.

  • Page 9: Electrical Connections

    Electrical Connections To avoid erratic operation, do not bundle the AC line and motor wires with signal or control wiring. Do not bundle motor wires from multiple controls in the same conduit. Use shielded cables on all signal wiring over 12 (30 cm). The shield should be earth grounded on the control side only. Wire the control in accordance with the National Electrical Code requirements and other local codes that may apply.
  • Page 10 Full Voltage Field Connection (Shunt Wound Motors Only) Wire the motor field leads to F+ and F- terminals of Terminal Block TB2, as shown in Figure 2-3 and as described in Table 2-2. Note: Do not connect motor armature leads to F1 and F2 quickconnect terminals. Do not use F+ and F- terminals of Terminal Block TB2 for any purpose other than to power the field of a shunt wound motor.
  • Page 11 COM, & SIG as shown in Figure 2-6. 4. Bidirectional Operation. Provides forward and reverse operation using the Main Speed Potentiometer. Connect the Main Speed Potentiometer to +15V, -15V, SIG as shown in Figure 2-7. Zero motor speed will now be located at 50% rotation. Rotating the Main Speed Potentiometer clockwise will increase motor speed in the forward direction.

  • Page 12: Remote Start/Stop Switch Connection

    Remote Start/Stop Switch Connection A Start/Stop Switch is mounted on the front cover. This switch can be disconnected and a remote Start/Stop Switch (type (ON)-OFF-ON, SPDT)may be used. 1. Remove the white, black, and red wires from START, RET and STOP terminals. The leads may be taped and left in the control.

  • Page 13: Voltage Following Connection

    Table 2-3 Run Relay Output Contacts Mode J10 Position Run Relay Contacts Closed Open Stop Open Closed Open Closed Voltage Following Connection An isolated 0 - 10 Volt DC or 0 - 15 Volt DC analog signal voltage can also be used to control motor speed.

  • Page 14: Dc Tachometer Connection

    DC Tachometer Connection Wire the tachometer to T+ and T- terminals of Terminal Block TB3, as shown in Figure 4-12. Jumper J3 must be set to the 7V position for 7 Volt per 1000 RPM tachometer or to the 50V position for 50 Volt per 1000 RPM tachometer.

  • Page 15: J1, J2 - Input Ac Line Voltage

    J1, J2 - Input AC Line Voltage Jumpers J1 and J2 are both factory set to the 230V position for 208/230 Volt AC line input. For 115 Volt AC line input, set both Jumpers J1 and J2 to the 115V position. Figure 2-14. Figure 2-14 AC Line Voltage Select Control Set for 208/230 Volt AC Line Input Control Set for 115 Volt AC Line Input...

  • Page 16: J5 - Analog Input Signal Voltage Selection

    Figure 2-17 Motor Current Selection J4 Set for J4 Set for J4 Set for J4 Set for J4 Set for 10 Amp Motor 7.5 Amp Motor 5 Amp Motor 2.5 Amp Motor 1.7 Amp Motor (Factory Setting) Table 2-4 Setting Motor Current J4 Setting SCR Rated Motor Horsepower –...

  • Page 17: J9 - Stop Mode Selection

    J9 - Stop Mode Selection Jumper J9 is factory set to the RTS position, for Regenerate-to-Stop Mode. For Coast-to-Stop Mode, set Jumper J9 to the CTS position. See Figure 2-2. J10 - Run Relay Output Mode Selection Jumper J10 is factory set to the NO position for normally open relay output contacts at TB3. For normally closed relay output contacts, set Jumper J10 to the NC position.

  • Page 18: Forward Acceleration (Facc) And Reverse Acceleration (Racc)

    Figure 2-18 Offset Trimpot Adjustment PERCENT OF BASE SPEED PERCENT OF MAIN SPEED POTENTIOMETER ROTATION -100 A - FORWARD OFFSET B - ZERO OFFSET C - REVERSE OFFSET -100 Forward Acceleration (FACC) and Reverse Acceleration (RACC) Sets the amount of time it takes the control voltage to reach full output. The FACC and RACC trimpots are factory set to 1 second.

  • Page 19: Maximum Speed (Max)

    Maximum Speed (MAX) Sets maximum speed of the motor. The MAX trimpot is factory set for 100% of base motor speed. For a higher maximum speed setting, rotate the MAX trimpot clockwise. For a lower maximum speed setting, rotate the MAX trimpot counterclockwise. See Figure 2-2. To Calibrate the MAX Trimpot: 1.

  • Page 20: Deadband (Db)

    Deadband (DB) Sets the amount of Main Speed Potentiometer rotation required to initiate control voltage output. The Deadband trimpot is factory set to 0.5% of base speed. For more deadband, rotate he DB trimpot clockwise. For less deadband, rotate the DB trimpot counterclockwise. See Figure 2-2. The DB trimpot also determines the amount of delay that will occur before regeneration begins.

  • Page 21: Operation

    Operation After the BC254/BC254-FSR has been properly setup (jumpers set to desired positions and wiring completed), the startup procedure can begin. If AC power has been properly brought to the control, the ON and STOP LEDs will be illuminated. Before starting, be sure that the Main Speed Potentiometer is set to the zero speed position.

  • Page 22: Troubleshooting

    Troubleshooting The control has LEDs to display the control’s operational status. A. Power On This lamp indicates AC power is applied to the control. B. STOP (STOP) The STOP LED will illuminate yellow when the Start/Stop switch is set to the STOP position. When the AC line is applied, this LED will also be illuminated until the Start/Stop switch is momentarily set to the START/STOP position.

  • Page 23: Optional Forward-Stop-Reverse Switch

    Appendix A Optional Forward-Stop-Reverse Switch (Catalog No. BC253) The optional Forward-Stop-Reverse Switch (Catalog No. BC253)* is used to stop and reverse the motor direction. The switch assembly is to be installed in the mounting hole provided on the control. See the installation instruction MN1368 provided with the Forward-Stop-Reverse Switch Kit for detailed information on mounting and connections.
  • Page 24 MN730...
  • Page 27 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 PHONE: 901-365-2020 PHOENIX, AZ 85040 FAX: 315-253-9923...
  • Page 28 MN730-0615 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. MN730 (A40221) - Rev. D 6/15...

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Baldor bc254-fsr

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