7CH4Q100 MICROPROCESSOR FOUR QUADRANT CONTROLLER FOR PM DC MOTORS

Product catalog summary

Introduction
The 7CH4Q100 is a microprocessor-controlled four-quadrant chopper designed for PMDC motors in traction applications, powered by a 24/36V battery. It features digital control for speed, current regulation, and fault diagnostics, with programmable parameters. The MOSFET power stage operates in an H-bridge configuration with PWM, ensuring high efficiency and low current ripple. The design complies with key EC standards.

Features

Power Supply: 24-36V battery
Rated Current: 30A
Max Current: 120A at 25°C
Frequency: 16 KHz
Max Heatsink Temperature: 90°C
Operating Temperature: -10°C to 40°C
Speed Reference Potentiometer: 1-10 KΩ
On-board Main Contactor: 24V-80A continuous
Regenerative Braking
Programmable Parameters

Safety Features

Output Short Circuit Protection
MOSFET Short Circuit Protection
Thermal Protection
Low Voltage and Overvoltage Protection
Reverse Battery Protection
Overcurrent Protection based on Temperature
Potentiometer and Wiring Fault Detection

Models

7CH4Q100: 120 Ampere, On-board Programmer
7CH4Q105: 120 Ampere, External Programmer

I/O Connector
The controller uses a 16-pin Molex connector for various inputs and outputs, including potentiometer inputs, electro-brake, horn coil, alarm, mode switches, and power connections. A 4-pin Molex connector is used for a handheld programmer.

Parameters
The controller has a range of programmable parameters, including acceleration and deceleration ramps, current limits, speed references, brake delay, and safety settings. These parameters allow customization for specific applications and conditions.

Conclusion
The 7CH4Q100 controller is a versatile and efficient solution for controlling PMDC motors in traction applications, offering robust safety features and extensive programmability to meet various operational requirements.

Catalog excerpts

7CH4Q100 MICROPROCESSOR FOUR QUADRANT CONTROLLER FOR PM DC MOTORS-1

7CH4Q100_E_4_S DATE : 08/01/2007 REV. 4.0 7CH4Q100 MICROPROCESSOR FOUR QUADRANT CONTROLLER FOR PM DC MOTORS - USER’S GUIDE -

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7CH4Q100 MICROPROCESSOR FOUR QUADRANT CONTROLLER FOR PM DC MOTORS-2

08/01/2007 7CH4Q100_E_4_S 1 - INTRODUCTION - The controller 7CH4Q100 is a 4 quadrant chopper for PMDC 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 an “H bridge” configuration operating with PWM. The ripple of the current is very low so the efficiency of the system is very high . The chopper is designed in accordance...

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7CH4Q100 MICROPROCESSOR FOUR QUADRANT CONTROLLER FOR PM DC MOTORS-5

08/01/2007 7CH4Q100_E_4_S 4 - I/O CONNECTOR - 16v Molex connector (Molex p/n.39012160, contacts p/n.39000038) fig.4 Pin 1: HI –POT. INPUT Positive Potentiometer Supply Pin 2: C-POT.INPUT Central Potentiometer, or Voltage (0,5-4,5Vdc) 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 potentiometer (>100 KÙ). Pin 5: PUSH (IF NOT USED MUST BE CLOSED TO PIN14) Default N.C. input contact ( +V_Batt/Pin14) for Backward safety. This input is active when open. Pin 6: DISABLE When the contact is closed...

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7CH4Q100 MICROPROCESSOR FOUR QUADRANT CONTROLLER FOR PM DC MOTORS-6

08/01/2007 7CH4Q100_E_4_S 5 Pin 10: ALARM Connection for the diagnostic Blinking Led indicator (5Vdc-10mA) output : the number of blinks means the alarm type (example 5 blinks means Alarm 5). Pin 11: MODE 1 Default N.O. input to +V battery. 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: HOURMETER Hour-meter output ( +V battery when running, 100mA max). 4v Molex connector (Molex p/n.3901240, contacts p/n. 39000038) Used for handheld programmer...

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