DATA SHEET D-325 KBRG-255 REGENERATIVE DRIVE FULL WAVE • 4 QUADRANT For Speed and Torque Control of PM and Shunt DC Motors RATED – 5 Hp @ 230 VAC – 50/60 Hz TYPICAL APPLICATIONS • Conveyors • Indexers • Packaging Machinery • Textile Equipment • Positioners • Feeders ®s P/N 8821 • Converting Machinery • Web Control * STANDARD FEATURES DESCRIPTION • Enable Circuit The KBRG-255 is a full-wave regenerative drive capable • Two (2) or Three (3) Wire Start/Stop of operating DC PM or Shunt motors in a bidirectional • Overload Shutdown with Timed CL mode. Its 4-quadrant operation provides forward and • External Relay Contacts reverse torque in both speed directions. This allows the • Function Indicator Lamps: Power On, Current Limit, control to maintain constant speed with overhauling loads Forward Enable, Reverse Enable and provides rapid instant reversing and controlled braking. • Protection: Control Circuit Fusing, MOV Transient Protection, Because of its excellent controllability and response time, ® Auto Inhibit , Rapid Response Current Limit Circuit, Regen the KBRG-255 can replace servos in many applications. Overspeed Protection The control is factory set for armature feedback, which provides up to 1% load regulation over a motor base JUMPER SELECTABLE FEATURES speed of 50:1. However, tachometer feedback is also • Control Mode: Speed (SPD), Torque (TRQ) available if superior regulation is required. By resetting • AC Line Voltage (VAC 50/60 Hz): 115, 230 mode jumper J7 to the “TRQ” position, the KBRG-255 can • DC Armature Voltage (VDC): 90, 180 be changed from a speed control to a torque control. • Feedback Type: Armature, Tachometer The drive contains a variety of “selectable” jumpers • Tachometer Voltage Input (VDC): 7, 20/30, 50 and adjustment trimpots to allow custom tailoring for exact • Timed Current Limit: TCL, NTCL requirements. For example: jumper J6, when placed in the “TCL” position, provides adjustable timed current limit from • S/LT Speed Linear Torque 1 to 15 seconds. This feature will protect the motor and • NLT Non Linear Torque control by shutting the drive down after the preset time has Bold indicates factory setting. elapsed. TRIMPOT ADJUSTMENTS The KBRG-255 can be operated with either a two (2) • Forward Acceleration (FWD ACCEL) or three (3) wire start/stop circuit, or can be started from • Reverse Acceleration (REV ACCEL) the AC line. A set of dedicated relay contacts are provided • Deadband (DB) • Offset (OFFSET) which are activated via the start/stop circuit. They can be used to turn on or off corresponding equipment or to • Maximum Speed (MAX SPD) sound an alarm if the drive stops. • Response (RESP) Another important feature is the array of the LED’s, • IR Compensation (IR COMP) which indicate the mode of operation the drive is in, and • Reverse Current Limit (REV CL) also serve as a diagnostic tool. In addition, KB’s exclusive • Forward Current Limit (FWD CL) ® Auto Inhibit circuit provides safe, smooth starting during • Timed Current Limit (TCL) rapid cycling of the AC line. The Overspeed Protect OPTIONAL FEATURES Circuit prevents failure of the power bridge in extreme overhauling conditions. • Bipolar Signal Isolator, SI-4X (P/N 8801) Reliability of the KBRG-255 is further enhanced with • 4-Quad Accel/Decel (P/N 8803) the use of a high speed current limit circuit. MOV transient • Multi-Speed Board (P/N 8814) protection is also included. A 5K remote potentiometer • PID Board (P/N 8804) and full operating instructions are supplied * CE Compliance Requires KBRF-200A RFI Filter sShown with optional SI-4X Signal Isolator TM Rev.______(A_______) 28 A Complete Line of Motor Drives SPECIFICATIONS AC Line Input Voltage (VAC ±15%, 50/60 Hz).................................. 230 FWD and REV Accel Range (Sec.) .......................................... 0.1 – 15 Arm Voltage Range at 230VAC Line (VDC) ............................ 0 – ±180 Dead Band Range (% Base Speed) ............................................ 0 – ±3 Field Voltage at 230VAC Line (VAC).......................................... 200/100 Offset Range (% Base Speed).................................................... 0 – ± 5 Max Load Capacity (% for 1 minute)................................................ 150 Max Speed Trimpot Range (% Base Speed) .......................... 70 – 110 Ambient Temperature Range (°C)............................................ 0 – 50(1) IR Comp Range at 230VAC Line (VDC) ...................................... 0 – 30 Speed Range (Ratio) ...................................................................... 50:1 FWD and REV CL Range (% Range Setting)............................ 0 – 150 Arm Feedback Load Regulation (% Base Speed) ............................ ±1 Timed CL Range (Sec.) .............................................................. 1 – 15 Tach Feedback Load Regulation (% Set Speed) .............................. ±1 Voltage Following Input Range (VDC) ...................................... 0 – ±10 Line Regulation (% Base Speed) .................................................... ±0.5 Voltage Following Linearity (% Base Speed) .................................. ±0.5 NOTES: (1) Control mounted in vertical position only. ELECTRICAL RATINGS AC Line Voltage Max. AC Max. DC Model Number KB Part Number Motor Voltage (VDC) Maximum Horsepower (VAC) ± 10% Load Current Load Current Hp, (KW) 50/60 Hz (RMS Amps) (DC Amps) KBRG-255 8821 230 0 – 180 38 26 5, (3.75) INCHES MECHANICAL SPECIFICATIONS CONNECTION DIAGRAM [mm] 7.700 [195.6] 0.300 7.100 [180.3] [7.6] 2.000 [50.8] R0.089 (4 PL) [R2.3] GND CHASSIS 0.324 (4 PL) [8.2] F+ FWD FWD REV MAX IR REV FWD EN ACCELACCEL DB SPD RESP COMP CL CL FIELD R0.172 (4 PL) F- [R4.4] OUTPUT S/LT NLT TCL OFFSET T+ 1 TACH REV EN T- INPUT 2 C1 ALARM 3 RY1 C2 CONTACTS PWR 4 8.000 ON 12.000 SP [304.8] [203.2] 5 STOP SC T1 6 ST START 7 E1 8 E2 R33 ENABLE 9 F1 FWD F 10 R TB1 MAIN 11 REV W 12 3 4 5 6 7 8 9 1011 1213 SPEED 12 C POT 13 L1 (EARTH) AC LINE TB1 TB2 J1 F+ F- L2 GND L1 L2 M1 M2 INPUT DWG#: C3900-1-01277 M1 M2 M 3.440 [87.4] © 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_______) 29 CONN3 COM -15 +15 SIG SPD TRQ J7 7V 20/30V 50V J4 TFB AFB J5 NTCL TCL J6 KB ELECTRONICS, INC. KBRG A57225