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MN1373

Installation & Operating Manual

4/17

BC145 SIGNAL ISOLATOR BOARD

Summary of Contents for Baldor BC145

Page 1: ...MN1373 Installation Operating Manual 4 17 BC145 SIGNAL ISOLATOR BOARD ...

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: ...1 1 General Performance Specifications 1 4 Chapter 2 Installation Mounting Instructions 2 1 Chapter 3 Wiring AC Power 3 1 Input Terminals 3 2 Current Signal Input 3 2 Voltage Signal Input 3 4 Chapter 4 Adjustments Output Signal 4 1 Table of Contents ...

Page 4: ...erminals P1 5 and 6 The potentiometer can also be wired for Auto Manual Operation The input range of 0 25V is the maximum voltage that can be applied to terminals 5 and 6 The minimum input voltage is 0 5 volts which can achieve an output voltage of 0 10 volts The unit is factory calibrated so that a 0 10VDC input yields a 0 10VDC output SAFETY NOTICE A Warning statement indicates a potentially haz...

Page 5: ...lied WARNING If possible do not adjust trim pots with the main power applied Electrical shock can cause serious or fatal injury If adjustments are made with the main power applied an insulated adjustment tool must be used to prevent shock hazard and safety glasses must be worn WARNING Do not use this drive in an explosive environment An explosion can cause serious or fatal injury This drive is not...

Page 6: ...verheating and demagnetization of the PM motor Caution Do not leave the motor in a locked rotor condition for more than a few seconds since motor damage may occur Caution Shunt wound motors may be damaged if field windings remain energized for an extended period of time without armature rotation Receiving Each control is thoroughly tested at the factory and carefully packaged for shipment When you...

Page 7: ...ximum of 10 volts Linearity 4 0 1 Temperature Drift 4 4mV per C Temperature Operating Range 0 40 C 32 104 F Operating Humidity Range Relative Non Condensing 0 95 Storage Temperature 25 to 85 C 13 to 185 F Note 1 To achieve full specifications input voltage must be within 10 of nominal 2 Floating non grounded or grounded input signal may be used 3 To convert from 4 20mA to 1 5mA add a 1kΩ 1 4W resi...

Page 8: ...d Use the Control Layout and Mechanical Specifications drawing to locate the mounting holes The unit is designed to be mounted in any position providing its components do not come in contact with grounded or live wiring 2 1 Control Layout Mechanical Specifications Inches mm Illustrates Factory Setting of Jumper J1 ...

Page 9: ...se shielded cables on all signal wiring over 12 30cm The shield should be earth grounded on the control side only AC Power The BC145 is powered with either 115 or 230VAC 50 60 Hz by arranging the jumpers between terminals 1 to 4 properly See Figures 3 1 and 3 2 Be sure unit is wired in accordance with the National Electrical Code and other codes that may apply It is recommended that a 1 amp fuse b...

Page 10: ...D SAFETY WARNINGS BEFORE ATTEMPTING TO USE THIS CONTROL The Signal Isolator accepts 4 20mA DC input to provide 0 9VDC output Connect the current signal input common to Terminal 5 and the positive to Terminal 6 as shown in Figure 3 3 Other current signal input ranges can also be used by installing appropriate resistors across terminals 5 and 6 Calibrate the Signal Isolator in accordance with the pr...

Page 11: ...Brown Black Red Install the 1kΩ 1 4W resistor across Terminals 5 and 6 Set Jumper J1 in VOLT position Procedure to Calibrate the Signal Isolator When Using Current Signal Input 1 Connect a DC voltmeter a digital voltmeter is suggested to Terminals 9 and 10 2 Apply the minimum signal input current to Terminals 5 and 6 3 Adjust the MIN Trimpot on the Signal Isolator to obtain an output voltage of 0V...

Page 12: ...als Minimum Input Voltage Range Maximum Input Voltage Range 5 6 0 5 0 25 5 7 0 25 0 120 5 8 0 120 0 550 Connect input voltage signal to proper input terminals as indicated in Figure 3 4 1 Connect a 10VDC 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 output voltage Exam...

Page 13: ...o 90V Adjust the MAX trimpot to the desired output voltage Note 1 When setting the output voltage using the MIN and MAX trimpots the voltage or speed of the driven motor can be read directly instead of using the output of the BC145 2 When readjusting the MIN and MAX trimpots always set the minimum voltage first and then the maximum voltage 3 Trimpots allow approximately 20 turns for the full range...

Page 14: ...inal of the speed control For multiple follower motors several controls can be driven from a single BC145 Be sure the AC line connections to the follower control are to the same phase e g L1 to L1 and L2 to L2 of all controls The output from the BC145 can be scaled to control the speed control over any desired speed range Adjust the MIN trimpot to provide the desired minimum speed and the MAX trim...

Page 15: ...ed up to five 5 follower motors can be controlled 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 must be installed with a 1 amp 600V isolation diode as shown in Figure 4 1 3 Multiple speed controls cannot be used with PWM Regenerative or Adjustable Frequency Dr...

Page 16: ...ls BC141 BC142 BC142 5 BC142 6 and BC155 Note The BC145 can be wired in an Auto Manual mode which will allow manual override of an automatic process See Figure 4 3 Figure 4 4 Process Control with Auto Manual Switch Connection for Models BC154 BC154 SI BC154 R BCWD140 BC160 and BC354 ...

Page 17: ...pose usage of the speed pot In the AUTO mode it is used for the ratio control and in the MAN mode it is used for manual speed adjustment Figure 4 6 Auto Manual Operation with Potentiometer on BC145 Input Connection for Models BC141 BC142 BC142 5 BC142 6 and BC155 Note 1 For models BC154 BC154 SI BC154 R BCWD140 BC160 and BC354 connect BC145 terminal 9 to terminal P1 instead of F ...

Page 18: ...oval inconvenience or consequential damage including injury to 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 BALDOR s total liability under all circumstances shall not exceed the full purchase price of the control Claims for purchase price refunds repair...

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Page 20: ...ctric 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 MN1373 All Rights Reserved A42086 Rev F 04 17 ...

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