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1pc 4-LEAD nema 17stepper motor 70OZ-IN MOTOR  17HS5425                           

1pc stepper motor driver DM542

 

 

 

 

 

 

 

 

 

Manual of 2-phase hybrid stepper motor driver DM542

Introduction:

  DM542 is a type of two-phase hybrid stepping motor driver, The drive voltage of which is from 18VDC to 50VDC. It is designed for use with 2-phase hybrid stepper motor of all kinds with 42mm to 86mm outside diameter and less than 4.0A phase current. This circuit that it adopts is similar to the circuit of servo control which enables the motor run smoothly almost without noise and vibration. Hording torque when DM542  run under high speed is also significantly higher than the other two-phase driver, what is more, the positioning accuracy is also higher. It is widely used in middle and big size numerical control devices such as curving machine, CNC machine, Computer embroider machine, packing machines and so on.

Features:

l  High performance, low price

l  Average current control, 2-phase sinusoidal output current drive

l  Supply voltage from 24VDC to 50VDC

l  Opto-isolated signal I/O

l  Overvoltage, under voltage, overcorrect, phase short circuit protection

l  15 channels subdivision and automatic idle-current reduction

l  8 channels output phase current setting

l  Offline command input terminal

l  Motor torque is related with speed, but not related with step/revolution

l  High start speed

l  High hording torque under high speed

Electrical specification:

Input voltage	18-50VDC
Input current	< 4A
Output current	1.0A~4.2A
Consumption	Consumption:80W;  Internal Insurance:6A
Temperature	Working Temperature -10~45oc; Stocking temperature -40oc~70oc
Humidity	Not condensation, no water droplets
gas	Prohibition of combustible gases and conductive dust
weight	200G

 

 

The first three bits (SW 1, 2, 3)of the DIP switch are used to set the dynamic current. Select a setting

Closest to your motor is required current 

Output current (A)
SW1	SW2	SW3	PEAK	RMS
ON	ON	ON	1.00	0.71
OFF	ON	ON	1.46	1.04
ON	OFF	ON	1.91	1.36
OFF	OFF	ON	2.37	1.69
ON	ON	OFF	2.84	2.03
OFF	ON	OFF	3.31	2.36
ON	OFF	OFF	3.76	2.69
OFF	OFF	OFF	4.20	3.00

 

4) Semi-flow function:

Semi-flow function is that there is not step pulse after 500 ms, the driver output current automatically reduced to 70% of rated output current, which is used to prevent motor heat.

4. Power connections

(1)+ v ,GND:Power Supply.

   +V: Power supply, 16~50 VDC, Including voltage fluctuation and EMF voltage. The max current is 5A.

(2) A+  A-  B+  B-:Connecting 2 phase stepper motors.

The driver & 2-phase hybrid stepping motor use four-wire connection, the motor can be connected in parallel & series bipolar. As for bipolar connection, it is higher performance with high-speed, but the current of driver is larger (it is 1.73 times more than the motor  winding current).
Connecting in series, the driver 's  current is equal to the motor winding one.

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