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SIGNAL ISOLATOR

BC145 Signal Isolator Board

Installation and Operating Manual

7/2000

MN1373

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Summary of Contents for BC145

Page 1: ...SIGNAL ISOLATOR BC145 Signal Isolator Board Installation and Operating Manual 7 2000 MN1373...

Page 2: ...15V Connection 5 2B 230V Connection 5 3 Current Input Signal Connection 6 4 Voltage Input Signal Connections 7 5A Leader Follower Voltage Following System with Multiple Motors 9 5B Leader Follower Vol...

Page 3: ...d grounding can reduce the chance of electric shocks fires or explosion in this product or prod ucts used with this product such as electric motors switches coils solenoids and relays Eye protection m...

Page 4: ...0 10V input For Regenerative Drives with bipolar 10V input other Signal Isolators are available A built in power supply enables the BC145 to be controlled with a 5K remote potentiometer connect potent...

Page 5: ...IFICATIONS INCHES mm Illustrates Factory Setting of Jumpers and Approximate Trimpot Settings 3 1 MAX P1 VOLT CUR J1 MIN 2 3 4 5 6 7 8 9 10 4 mounting holes for 6 screws 2 244 57 0 0 276 7 00 0 276 7 0...

Page 6: ...fications are based on an output of 10 volts AC Power Requirements 115 or 208 230V AC 50 60 Hz 1 Signal Input Voltage 2 0 25 0 120 0 550V DC Signal Input Current 2 1 5 4 20 10 50mA 3 Maximum Output Vo...

Page 7: ...e AC line B Input Terminals A voltage or current signal from a microprocessor tachometer transducer etc is to be connected to terminals 5 through 8 The selection of the proper terminal is based on the...

Page 8: ...by removing resistor R3 from the printed circuit board Recalibrate the Signal Isolator to follow a 4 20mA current signal input as follows 1 Connect a 10V DC meter digital DC meter is suggested to term...

Page 9: ...re 4 1 Connect a 10V DC meter digital meter is suggested to terminals 9 and 10 2 Apply the maximum input voltage that would be supplied from tach transducer etc 3 Adjust the MAX trimpot to the desired...

Page 10: ...n the maximum voltage 3 Trimpots allow approximately 20 turns for the full range of adjustment If during the adjust ment procedure the output stops changing try reversing the direction of rotation of...

Page 11: ...nnect as above WARNING If Signal Isolator is connected to multiple speed controls 1 Multiple controls must be powered from the same phase of AC line 2 The positive input terminal to each speed control...

Page 12: ...Auto Manual mode which will allow manual override of an automatic process See figure 6B FIGURE 6B PROCESS CONTROL WITH AUTO MANUAL SWITCH 9 10 BC145 5 7 90V DC Leader Motor A A BC141 BC141 Speed Pot...

Page 13: ...t 10 9 P2 CONTROL BC145 The following circuit provides for dual pur pose usage of the speed pot In the AUTO mode it is used for ratio control and in the MAN mode it is used for manual speed adjust men...

Page 14: ...any person caused by items of our manufacture or sale Some states do not allow the exclusion or limitation of incidental or consequential damages so the above exclusion may not apply In any event BAL...

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