7CH4E200_E_0_S DATE : 10/01/2007 REV. 0.0 7CH4E200 MICROPROCESSOR CONTROLLER FOR SEPARATELY EXCITED MOTORS - USER’S GUIDE -

10/01/2007 7CH4E200_E_0_S 1 - INTRODUCTION - The 7CH4E200 is a controller for separately excited motors powered by battery 24/36V for traction applications. The chopper is equipped with a powerful microprocessor for digital control of the speed, current regulation and failures of the motor ; an efficient diagnostics of the failures and wrong wiring connections, programmability of the main parameters . The MOSFET power stage is operating with PWM modulation. The ripple of the current is very low so the efficiency of the system is very high . The chopper is designed in accordance with the most...

10/01/2007 7CH4E200_E_0_S 3 - COMPLETE WIRING DIAGRAM –

10/01/2007 7CH4E200_E_0_S 4 - I/O CONNECTOR - 16v Molex connector (Molex p/n.39012160, contacts p/n.39000038) fig.3 Pin 1: HI –POT. INPUT Positive Potentiometer Supply Pin 2: C-POT.INPUT Central Potentiometer, or Voltage (0-5Vdc) Speed Reference Input Pin 3: LO-POT.INPUT Negative Potentiometer Supply, or Gnd Voltage Speed Reference Input Pin 4: Pin 2:V_MAX (OPTIONAL) Max Speed input voltage (0 – 5 V) or Max speed input potentiometer (>100 K). Pin 5: PUSH Default N.C. input contact ( +V_Batt/Pin14) for Backward safety. This input is active when open. Pin 6: MODE 2 INPUT Default N.O. input to +V...

10/01/2007 7CH4E200_E_0_S 5 Pin 12: FORWARD SWITCH N.O. input to +V battery. Pin 13: BACKWARD SWITCH N.O. input to +V battery. Pin 14: COMMON HIGH +V battery output for switches. Pin 15: KEY IN Key switch input (+V battery). Pin 16: +B OUTPUT Positive supply output for “HORN” and “ELECTROBRAKE” coils. 4v Molex connector (Molex p/n.3901240, contacts p/n. 39000038) Used for handheld programmer Power screws (M5) M6 screws: + B: Positive DC power supply input, - B: Negative DC power supply input, -M: Negative Motor Armature output. M5 screws: E1: Positive Field output ( in forward direction ), E2:...

10/01/2007 7CH4E200_E_0_S 6 - PARAMETERS - PARAMETER DESCRIPTION MIN MAX DEFAULT RESET TO DEFAULT Reset to default 0 2 2 ACCELERATION RAMP Acceleration ramp 0.5 5.0 3.0 REVERSE RAMP Reverse dec. ramp 0.5 5.0 1.5 NEUTRAL RAMP Neutral dec. ramp 0.5 5.0 1 FORWARD SPEED Forward max.peed 20 100 100 BACKWARD SPEED Backward max speed 10 100 60 MINIMUM SPEED Minimum speed 0 20 0 BATTERY VOLTAGE Battery Voltage 24 36 24 SPEED REFERENCE Speed Reference s-ended BW/FW s-ended REF. DEADBAND Reference Dead-band 0.05 0.50 0.20 E-BRAKE DELAY Brake delay 0.0 9.9 2.0 MODE 1 SPEED Speed in Mode 1 10 100 50 MODE...