DATA SHEET D-325 KBSI-240D SIGNAL ISOLATOR Provides an Isolated Interface Between Non-Isolated Signal Sources and Variable Speed Motor Controls ® P/N 9431 STANDARD FEATURES • Accepts Voltage or Current Inputs DESCRIPTION • Operates on 115/230 VAC 50/60 Hz The KBSI-240D Signal Isolator is used to • Multi-turn Trimpots for MIN & MAX isolate and condition DC voltage and current SPECIFICATIONS signals which are derived from transducers, (1) AC Power Requirements ..............115 or 230 VAC, 50/60Hz microprocessors, motors and process con- (2) Signal Input Voltage ................0 – 25, 0 – 120, 0 – 550 VDC trollers. The output of the Signal Isolator is (2) (3) Signal Input Current ....................1 – 5, 4 – 20, 10 – 50 mA connected to the input of any variable speed Maximum Output Voltage ............................................10 Volts motor control with a voltage following input. Maximum Output Current ..............................................10 mA Range of “MIN” Trimpot ..............................................± 3 Volts The maximum output voltage of the Isolator Range of “MAX” Trimpot .......... 0 – 2 Times the Input Voltage is 10 volts, which is a linear function of the ....................................................With a Maximum of 10 Volts input signal. (4) Linearity ........................................................................± .1% (4) The KBSI-240D is versatile since it can Temperature Drift ..............................................4 mV Per °C accommodate a wide range of input voltages Temperature Operating Range ................................0 – 50 °C Notes: (0 – 25, 0 – 120 and 0 – 550 VDC) and, in 1. To achieve full specifications, input voltage must be within ± 10% of nominal. addition, a wide range of input current signals 2. Floating (non-grounded) or grounded input singal may be used. 3. To change from 4–20 mA to 1–15 mA remove (use cutters) R3A. To convert (4 – 20 mA, 10 – 50 mA and 1 – 5 mA). The to 10–50 mA, add a 150 ohm 1W resistor across terminals “5” and “6”. 4. Specifications are based on an output of 10 volts. built-in Voltage Current (“VLT/ CUR”) jumper is used to change the Signal Isolator from a INCHES voltage to a current input. In the current MECHANICAL SPECIFICATIONS [mm] mode, the unit is factory calibrated so that a 4.843 4 – 20 mA input yields a 0 – 9 VDC output. 0.276 [123.0] [7.00] 0.276 4.291 The KBSI can also be controlled with a 5K [109.0] [7.00] ohm potentiometer in lieu of a signal input. KBSI-240D The control is supplied with two multi-turn trimpots (MIN and MAX) which are used to C V U L scale the input and output signals to the 2.795 2.244 R T SW1 [71.0] [57.0] MAX desired level. The KBSI-240D can be powered MIN P with either a 115 or 230 VAC 50/60Hz power source. A complete instruction manual is supplied with each control. (4) MOUNTING HOLES FOR #6 SCREW DWG#: A3200-1-00341 TM 44 A Complete Line of Motor Drives APPLICATION BLOCK DIAGRAMS Master/Slave Voltage Process Control with Following System Auto (Ratio Pot)/Manual Switch AUTO AC LINE AC LINE AC LINE W/RATIO MANUAL 90V DC MAIN MOTOR 10(+) L1 L2 P3 SLAVE MOTOR MOTOR 10(+) P2 7 A+ A+ A(+) KBSI- P2 KBSI- KBIC KBIC KBIC 240D 240D A- 5 9(-) F- 9(-) F(-) A- A(-) 5K POT SPEED POT DWG#: B2600-2-00527 DWG#: B2600-2-00527 Auto/Manual Operation Process Control with Potentiometer on with Auto/Manual Switch KBSI Input MANUAL 5K POT 5K SPEED POT AUTO/MAN 10(+) AUTO/MAN P3 5K POT MOTOR MOTOR P PROCESS A(+) 10(+) P2 P2 A(+) SIGNAL KBSI- KBSI- KBIC KBIC 6 240D 240D F- 0-10VDC 5 9(-) A(-) A(-) 9(-) P1 F(-) DWG#: B2600-2-00527 DWG#: B2600-2-00527 Master/Multiple Slave Voltage Following System MAIN RATIO SLAVE MOTOR 5 KOHM 10(+) MOTOR #1 7 P2 A+ A+ KBSI- KBIC KBIC 9(-) 240D 5 A- A- F- ISOLATION DIODE SLAVE MOTOR #2 P2 A+ KBIC A- F- SLAVE #3 MOTOR P2 A+ KBIC A- F- ADDITIONAL SLAVES** DWG#: B2600-2-00527 © 1998 KB Electronics, Inc. KB ELECTRONICS, INC. 12095 NW 39th Street, Coral Springs, FL 33065-2516 (954) 346-4900 • FAX (954) 346-3377 Outside Florida Call TOLL FREE (800) 221-6570 www.kbelectronics.com Rev.______(A_______) 45