HMD6 Series DC Pulse Width Digital GovernorDetailed product description：

The HMD6 series DC pulse width digital speed controller can be used in conjunction with various small and medium power DC motors to achieve stable and reliable speed regulation. Due to the use of pulse width modulation technology in the controller, fully digital stepless speed regulation is achieved through a microcomputer, which has good starting characteristics and a wide speed regulation range. This machine has complete protection functions, long service life, strong input and output control functions, and can be widely used in the mechanical and instrument industries such as CNC machine tools, metallurgy (steel rolling, rolling, drawing), plastics, casting, chemical industry, rubber, pharmaceuticals, soap making, packaging, water conservancy, boilers, cigarettes, food, sanding cloth, cement, glass, textile, printing, optics, nail making, shoemaking, robots, conveyor belts, etc.

Features:
(1) Use the most advanced MOSFET or IGBT power components as the main circuit switch, with PWM pulse width control.
(2) It can be equipped with permanent magnet direct acting motors, as well as various traditional DC motors such as separately excited ones.
(3) Feedback can be obtained through a speedometer, photoelectric encoder, or back electromotive force.
(4) Wide speed range, with constant torque characteristics, constant current starting, and dual closed-loop regulation.
(5) Fully digital control, with input and output interfaces for general servo systems.
(6) Easy to debug and simple to use.  

HMD6 series DC pulse width digital speed regulator model specifications

project			specification
model			HMD6-0.8	HMD6-1.5	HMD6-3	HMD6-5
Suitable for electric motors			Below 0.8KW	Below 1.5KW	Below 3KW	Below 5KW
output parameters	rated voltage		180V	180V	180V	180V
	rated current		6A	12A	18A	28A
	Starting power supply		≥9A	≥18A	≥27A	≥42A
input power			220V+10%； -15%； 50Hz/60Hz
Speed ratio			Better than 1:1000
Steady speed accuracy		Speed measuring machine feedback	Better than 0.5%
		Potential feedback	Better than 2%
Output excitation current			1A
remark			The output rated voltage can be selected from 24, 36, 110, 160, and 180V, and the output current changes accordingly.

HMA6 series AC motor frequency conversion (voltage regulation) speed controller
Purpose:
The HMA6 series AC motor speed controller can control various types of AC servo motors and ordinary Y system AC motors. The control method adopts SPWM technology, which can use a photoelectric encoder as a feedback element or without feedback. In order to improve the low-speed characteristics, the controller has a low-speed compensation characteristic (which can be set). Therefore, it can form a wide range stepless speed control system, which is widely used in all occasions that require speed control, such as CNC machines, light industry machinery, printing machinery, packaging machinery, etc.
Features:
(1) Use the most advanced IGBT or MOSFET power components as the main circuit switch, with SPWM pulse width control.
(2) It can be controlled by frequency modulation or voltage regulation, and can be equipped with ordinary AC motors or other AC motors, such as neodymium iron boron permanent magnet AC motors.  
(3) Feedback from photoelectric encoders can be used for high-precision control.
(4) Wide speed range, with constant torque characteristics, constant current starting, and low-speed torque compensation.
(5) Fully digital control, with input and output interfaces for general servo systems.
(6) Panel operation or external potentiometer operation, easy to use.  

Main models and specifications of HMD6 series DC pulse width digital speed regulator

model	HMA6-0.2	HMA6-0.5	HMA6-1.5	HMA6-3	HMA6-1.5C	HMA6-3C
rated power	Below 0.2KW	Below 0.5 KW	Below 1.5 KW	Below 3 KW	Below 1.5 KW	Below 3 KW
input voltage	Single phase 220V,+10%, -15%				Three phase 380V,+10%, -15%
main circuit	IGBT or MOSFET voltage type three-phase inverter
Control method	SPWM modulation, frequency and voltage control
switching frequency	2KHz-20KHz
Given signal	0-5V; 4-20A, 10K potentiometer
Optoelectronic pulse input	Maximum input pulse frequency 100KHz, single ended input
input signal	Connect, disconnect
output signal	Transistor output, open collector, 36V, 100mA
Speed ratio	Better than 1:5000
response time	Less than 75ms
cooling method	Self cooling		air cooling		Self cooling	air cooling
Configure encoder	Power supply voltage; 5-24V， Resolution=100P/R
protection function	Multiple protection measures such as overload, overspeed, undervoltage, overvoltage, overcurrent, etc