Instruction/ maintenance manual of the product BSC 7107 DC Baldor
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BSC 7107 DC Brushless Control Installation and Operating Manual 9/97 MN1231.
T able of Contents T able of Contents i Section 1 General Information 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Introduction 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Limited W arranty 1-2 . . . .
ii T able of Contents.
Section 1 General Information General Information 1-1 Introduction Baldor Series BSC 7107 control is a general purpose brushless DC motor control. This control commutates power into standard 3-phase brushless (BLDC) motors. The control input line voltage is 120 V AC ± 10%.
1-2 General Information Limited W arranty Fo r a period of one (1) year from the date of original purchase, BALDOR will repair or replace without charge controls and accessories which our examination proves to be defective in material or workmanship.
General Information 1-3 Safety Notice This equipment contains voltages that may be as great as 1000 volts! Electrical shock can cause serious or fatal injury . Only qualified personnel should attempt the start-up procedure or troubleshoot this equipment.
1-4 General Information W ARNING: Be sure the system is properly grounded before applying power . Do not apply AC power before you ensure that all grounding instructions have been followed.
Section 2 Receiving & Installation Receiving & Installation 2-1 Receiving The control is thoroughly tested at the factory and carefully packaged for shipment. When you receive your control, there are several things you should do immediately . 1.
2-2 Receiving & Installation Figure 2-1 Mounting Diagram 6.70 9.00 7.50 6.30 0.20 7 / 32 dia. (4 places) 2.90 T op View End V iew AC Power Connection Refer to Figure 2-2. A fused 120 V AC power source is required. A 12 AMP fuse should be used. 1. Be sure the AC source is disconnected (OFF).
Receiving & Installation 2-3 Figure 2-2 Control Connection Locations P4 Upper Board P1 GND (Connect to plant “Earth” ground). AC Line BLDC Motor Connection s. Scaled motor current test point. 1 10mV = 1A Motor Current. 60 ° / 120 ° Jumper 120 ° 60 ° Lower Board T erminal tightening torque = 4 Lb-in (0.
2-4 Receiving & Installation Sensor and Motor Connections Refer to Figure 2-2. Brushless DC motors have eleven (1 1) wires: three (3) motor phase power wires, three (3) hall sensor wires, two (2) wires for hall sensor power and sensor common, one (1) wire for motor ground and two (2) wires for motor thermal switch.
Receiving & Installation 2-5 Reverse Operation T erminal P4–REV is the forward/reverse control. Y ou can reverse motor direction by connecting P4–REV to P4–COM. Use a jumper wire, switch, relay , or an open collector NPN transistor . Caution: Before reversing directions, make sure the motor is stopped.
2-6 Receiving & Installation 1st Time Power Up Procedure (or after a motor is replaced) Caution: If full AC V oltage is applied and the motor connections are wrong, the control will be damaged. Apply 10% of the input voltage to test motor lead connections at the first time power up or after a motor is replaced.
Section 3 Adjustments Adjustments 3-1 Current Limit Adjustment The current limit adjustment is factory set at 10 AMPS and you should not have to increase this setting for the Series BSC 7107 control. Rotating the I Limit potentiometer on the upper board CCW decreases the current limit.
3-2 Adjustments Minimum Speed Adjustment 1. Set the Speed Pot to zero speed (fully CCW). 2. Set the MIN pot on the upper board (Figure 2-2) fully CCW . 3. Apply power to the control. 4. Slowly rotate the MIN CW until the motor begins to rotate. Then turn the pot CCW until the motor just stops.
Section 4 Specifications and Data Specifications 4-1 Specifications Input V oltage 120 V AC ± 10% . . . . . . . . . . . . . . . . . . . . . Output V oltage (Filtered Output) 0 to 140 VDC . . . . . Load Current (Continuous) 7 Amperes . . . . . . . . .
4-2 Specifications Hall Signal Timing Diagram S1 (White) S2 (Y ellow) S3 (Orange) 0 0 0 15 30 60 30 60 120 45 60 90 60 120 240 75 150 300 90 180 360 105 210 420 120 240 480 135 270 540 150 300 600 165.
BALDOR ELECTRIC COMP ANY P .O. Box 2400 Fort Smith, AR 72902–2400 (479) 646–471 1 Fax (479) 648–5792 © Baldor Electric Company Printed in USA MN1231 9/97 PS50.
An important point after buying a device Baldor BSC 7107 DC (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Baldor BSC 7107 DC yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Baldor BSC 7107 DC - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Baldor BSC 7107 DC you will learn all the available features of the product, as well as information on its operation. The information that you get Baldor BSC 7107 DC will certainly help you make a decision on the purchase.
If you already are a holder of Baldor BSC 7107 DC, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Baldor BSC 7107 DC.
However, one of the most important roles played by the user manual is to help in solving problems with Baldor BSC 7107 DC. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Baldor BSC 7107 DC along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
