7CH150N ONE QUADRANT CONTROLLER FOR PM AND 3 CLAMPS DC MOTORS
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7CH150N_E_0 DATE : 16/01/2007 REV. 0.0 7CH150N ONE QUADRANT CONTROLLER FOR PM AND 3 CLAMPS DC MOTORS - USER’S GUIDE -

16/01/2007 7CH150N_E_0 1 - INTRODUCTION - The controller 7CH150N is a 1 quadrant chopper for PM and 3 clamps DC motors powered by battery 12/24/36V (on request) 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. The MOSFET power stage operating with PWM 300 Hz. The chopper is designed in accordance with the most important EC standards. - FEATURESPOWER SUPPLY BATTERY (12V) – 24V – (36 V) RATED CURRENT 50 A (DEPENDS ON POWER DISSIPATION)...

16/01/2007 7CH150N_E_0 3 - I/O CONNECTOR - Pin 1: KEY Key switch input (+V battery). Pin 2: FORWARD SWITCH N.O. switch Pin 3: BACKWARD SWITCH N.O. switch Pin 4: HI-POT.INPUT Positive Potentiometer Supply Pin 5: C-POT.INPUT Central Potentiometer Pin 6: LO-POT.INPUT Negative Potentiometer Supply Pin 7: ELECTROBRAKE COIL ( -) Output active low. Pin 8: LED ALarm Pin 9: HOURMETER Hour-meter output Pin 10: SPEED REDUCTION INPUT N.O. contact ( 50% speed reduction) Pin 11: BACKWARD CONTACTOR COIL (-) Pin 12: FORWARD CONTACTOR COIL (-)

16/01/2007 7CH150N_E_0 4 - ALARMS ( RED LED BLINKING) - N° OF BLINKINGS ALARMS 1 - MOSFET SHORT CIRCUIT. - RELAIS ON AT POWER ON OR IN STOP POSITION 2 FORWARD SWITCH ON AT POWER ON 3 BACKWARD SWITCH ON AT POWER ON 4 POTI > 0.6V AT POWER ON 5 BREAKING POTI > 13V 6 BOTH SWITCHES ON SEMPRE ON THERMAL PROTECTION NOTES. IF AN ALARM IS PRESENT AT POWER ON THE MOVEMENT OF THE MACHINE IS DISABLED. TO RESET THE ALARMS THE POTI AND FW/BW SWITCHES MUST BE IN NEUTRAL POSITION (OPEN)