Instructions for Installation and Operation Type ABL-3906C Low-Voltage Brushless DC Motor Controls (IP-00) Model 3908 12 VDC (60° commutation) Model 3909 24 VDC (60° commutation) Model 3919 24 VDC (120° commutation) SPECIFICATIONS Power Supply Voltage: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Model 3908: 12 to 14 VDC Model 3909, 3919: 24 to 35 VDC Output Current (Continuous): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Model 3908: 20.0 Amps Model 3909, 3919: 18.0 Amps Peak Current: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Model 3908: 30.0 Amps Model 3909, 3919: 27.0 Amps

This manual contains the basic information needed to install and operate the Bodine type ABL-3906C Low-Voltage Brushless DC Motor Control. This manual does not profess to cover all details or variations in equipment, nor to provide for every possible contingency associated with installation, operation, or maintenance. No warranty of fitness for purpose is expressed or implied. Should further information be desired or should particular problems arise which are not covered sufficiently for the user’s purpose, the matter should be referred to the Bodine Electric Company. IMPORTANT Read this manual...

QUICK REFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 PRODUCT SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 IMPORTANT SAFETY PRECAUTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 ELECTRICAL CONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Motor Fuses...

PRODUCT SPECIFICATIONS The Type ABL-3906C Low-Voltage Brushless DC Motor Control is a chassis type, designed to be mounted in a separate enclosure supplied by the user. It operates from a DC power supply or from a battery (12 VDC or 24 VDC, depending on the control model). The controls provide the necessary electronic commutation and phase current switching to operate Bodine lowvoltage brushless DC motors. Speed can be controlled by an external or onboard MAX speed trim potentiometer, or a 0 to 5 VDC analog input signal. Other features include adjustable maximum speed settings, torque, and acceleration...

IMPORTANT SAFETY PRECAUTIONS “The use of electric motors and generators, like that of all other utilization of concentrated power, is potentially hazardous. The degree of hazard can be greatly reduced by proper design, selection, installation, and use, but hazards cannot be completely eliminated. The reduction of hazard is the joint responsibility of the user, the manufacturer of the driven or driving equipment, and the manufacturer of the motor or generator.”* The Bodine type ABL-3906C control was evaluated by Underwriters Laboratories (UL) for compliance to UL standard 508 and CSA standard...

Before installation, review the application to confirm that the proper motor and control have been selected. This should be done after reading this manual and all applicable safety standards. If in doubt, contact your Bodine regional sales manager, or the home office if there is no representative in your area. Although Bodine Electric Company assists its customers in selecting motors and controls for specific applications, determination of fitness for purpose or use is solely the customer’s responsibility. ! This control should only be installed by a qualified technician, electrician, or electrical...

ELECTRICAL CONNECTIONS Read the following instructions as well as all of the applicable safety recommendations, before making any electrical connections between the control, motor, or other motion control electronics. ! The power supply should be the last connection made in order to prevent accidental start-up. Disconnect the power supply before making any other electrical connections. Figure 3 shows a detailed diagram of the control circuit board and the various connection points. Stock Bodine 24-Volt Brushless DC motors are supplied with commutation leads terminated at connector J1. The motor...

Control Fuse: The ABL-3906C control should be protected with a fuse in the positive power supply lead. The fuse should be sized to allow the motor to run at full speed and load with a safety margin. Motor Fuse: The Fuse type should be UL Category JDYX2 with a maximum rating of 25A. The user should install a fuse in two of the three motor phase connections, as shown in Figure 1. The value of the fuse is dependent on the current rating of the motor. Determine the fuse value using the following formula: Motor Fuse Rating = 1.2 x Motor Current Rating Motor Phase Connections: The motor phase outputs...

Control Speed Signal Connections: Motor speed can be controlled in one of three ways: 1. ontrolling Speed With an External Potentiometer (included): C An external 10 KΩ potentiometer can be used to externally control motor speed (for applications where more frequent speed changes are required). Clockwise rotation of the potentiometer increases motor speed, when connected as follows: a. older three leads of appropriate length to the potentiometer. S b. erminate the other ends of the potentiometer leads with T the pins supplied with the 8-pin interface connector. c. ount the potentiometer in the...

Front view of external speed potentiometer (included) CW increase 5 Volts VIN Add jumper when internal trimpot is used for on-board speed control VIN External analog signal Figure 5 – Internal and External Speed Potentiometer Connections Control Logic Connections: Manual switches, relays, or logic signals can be used to control motor braking, enable, and direction of rotation. Figure 6 shows the pin-out of the interface connector J4, as well as interface information for the logic inputs. Chart 3 lists the condition of the control input based on the open or closed condition of the relay contact...