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Boston gear Ratiotrol P-3026-BG Installation And Operation Manual

Dc motor speed control
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Boston Gear
®
Ratiotrol
®
DC Motor Speed Control
Installation and Operation
P-3026-BG
Doc. No. 60881
VEL Series 1/6 – 1 HP
VEH Series 1 – 3 HP
An Altra Industrial Motion Company

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Summary of Contents for Boston gear Ratiotrol P-3026-BG

  • Page 1 Boston Gear ® Ratiotrol ® DC Motor Speed Control Installation and Operation P-3026-BG Doc. No. 60881 VEL Series 1/6 – 1 HP VEH Series 1 – 3 HP An Altra Industrial Motion Company...

  • Page 2: Table Of Contents

    Section V Parts List ......15 P-3026 • Doc. No. 60881 • Boston Gear Ratiotrol DC Motor Speed Control ®...

  • Page 3: Section I

    VEL100 – 1 HP 2. VEH100 – VEH500: 230VAC VEH100 – 1 HP VEH150 – 1-1/2 HP VEH200 – 2 HP VEH300 – 3 HP P-3026 • Doc. No. 60881 • Boston Gear Ratiotrol DC Motor Speed Control ® ®...

  • Page 4: Ratings

    6. Speed Regulation (see Table 2) – Regulation Performance Characteristics percentages are of motor base speed under steady-state conditions. 1. Speed Range (controlled) – 0 to motor base speed P-3026 • Doc. No. 60881 • Boston Gear Ratiotrol DC Motor Speed Control ® ®...

  • Page 5: Standard Features

    Form C, 2 ampere (120 VAC – 28 UDC) contacts which can be used to signal audible or visual alarms, or auxiliary control devices, e.g., lubrication pumps, fans, valves. P-3026 • Doc. No. 60881 • Boston Gear Ratiotrol DC Motor Speed Control ®...

  • Page 6: Installation

    However, to prevent problems from high-energy transients and large surges, observe the following: 1. Place the controller on a feeder line separate P-3026 • Doc. No. 60881 • Boston Gear Ratiotrol DC Motor Speed Control ® ®...

  • Page 7: Initial Startup

    See the option selection table on the controller speed. data label. 10. Turn the MOTOR SPEED potentiometer fully counterclockwise to zero and depress the STOP button. P-3026 • Doc. No. 60881 • Boston Gear Ratiotrol DC Motor Speed Control ® ®...

  • Page 8: Operation

    115V — — — Torque % 230V — — — — — Stops Per 115V — — — Minute 230V — — — — — P-3026 • Doc. No. 60881 • Boston Gear Ratiotrol DC Motor Speed Control ® ®...

  • Page 9: Speed Control

    This center position causes a Stop function, and an antiplug circuit prevents the motor from being restarted while the motor is braking until a safe speed for reversing is attained. P-3026 • Doc. No. 60881 • Boston Gear Ratiotrol DC Motor Speed Control ®...

  • Page 10: Maintenance

    Overvoltage and resulting overspeed can to the Troubleshooting Table (Table 5). damage the motor. Refer to Figure 4 for the location of the internal adjustment potentiometers. P-3026 • Doc. No. 60881 • Boston Gear Ratiotrol DC Motor Speed Control ® ®...
  • Page 11 To obtain a particular percentage of rated output torque, set the armature current at a percentage of rated armature current; e.g., 50% torque is obtained with 50% rated armature current. P-3026 • Doc. No. 60881 • Boston Gear Ratiotrol DC Motor Speed Control ® ®...

  • Page 12: Troubleshooting

    SCR and/or diode breaking down Replace BR1. (intermittently shorting) in Power Bridge BR1 Control board failure causing SCR Replace control board. false firing or misfiring P-3026 • Doc. No. 60881 • Boston Gear Ratiotrol DC Motor Speed Control ® ®...
  • Page 13 Correct condition accordingly. the motor Turning IR COMP potentiometer (R9) counterclockwise may minimize condition. Motor failure Check motor brushes, replace if needed. Repair or replace motor. P-3026 • Doc. No. 60881 • Boston Gear Ratiotrol DC Motor Speed Control ® ®...
  • Page 14 Correct accordingly. Motor fields should be connected for low voltage. Motor overheating from friction Check for misalignment. Realign motor. Shorted motor windings or Repair motor. faulty bearings P-3026 • Doc. No. 60881 • Boston Gear Ratiotrol DC Motor Speed Control ® ®...

  • Page 15: Parts List

    Section V Parts List P-3026 • Doc. No. 60881 • Boston Gear Ratiotrol DC Motor Speed Control ® ®...

  • Page 16: Options

    Remote Operator’s Station 10-Turn Speed Pot NEMA 3, 4, 12, & 13 Kit * Includes Option D, Dyn. Braking ** Includes Option D and Option9, Jog P-3026 • Doc. No. 60881 • Boston Gear Ratiotrol DC Motor Speed Control ® ®...

  • Page 17: Illustrations

    1.35 Circuit Breaker 1.33 Operator Panel 12.00 1.75 9.34 6.00 Mounting Slot Width 8.59 Conduit 1.20 Entrance 3/4-14 N.P.T. (4) Places 10.55 6.30 9.06 16.81 P-3026 • Doc. No. 60881 • Boston Gear Ratiotrol DC Motor Speed Control ® ®...

  • Page 18: Veh/H-Mr

    (8) Mounting Slots .25 Wide Conduit Entrance 3/4-14 N.P.T. (6) Places 10.55 Approximate Weights 9.06 VEL Controls 30 Pounds 16.81 VEH Controls 32 Pounds Figure 2 P-3026 • Doc. No. 60881 • Boston Gear Ratiotrol DC Motor Speed Control ® ®...

  • Page 19: Run/Stop Logic

    Section VII Illustrations Ratiotrol D.C. Systems Figure 3 VEL/VEH Series P-3026 • Doc. No. 60881 • Boston Gear Ratiotrol DC Motor Speed Control ® ®...

  • Page 20: Figure No.4 Schematic Db, Reversing, Jog Options

    Section VII Illustrations Ratiotrol D.C. Systems Figure 4 P-3026 • Doc. No. 60881 • Boston Gear Ratiotrol DC Motor Speed Control ® ®...

  • Page 21: Figure No.5 Internal View, Controller

    No employee, agent, distributor, or other person is authorized to give additional warranties on behalf of Boston Gear, nor to assume for Boston Gear any other liability in connection with any of its products, except an officer of Boston Gear by a signed writing.

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