Digital stepper motor driver DM422D with low consumption

Peak

RMS

SW1

SW2

SW3

Default

ON

ON

ON

0.5A

0.35A

OFF

ON

ON

0.70A

0.50A

ON

OFF

ON

1.0A

0.70A

OFF

OFF

ON

1.30A

0.90A

ON

ON

OFF

1.60A

1.20A

OFF

ON

OFF

1.90A

1.40A

ON

OFF

OFF

2.20A

1.60A

OFF

OFF

OFF

Pulse/Rev

SW6

SW8

Default

ON

ON

1600

OFF

ON

3200

ON

OFF

6400

OFF

OFF

Phenomenon

Reason

Solution

The red indicator is on.

1.A short circuit of motor wires.

Inspect or change wires

2.The external voltage is over or lower than the driver’s working voltage.

Adjust the voltage to a reasonable rang

3.Unknown reason

Return the goods

Driver function

Operating instructions

Output

current

setting

Users can set the driver output current by SW1-SW3 three switches.

The setting of the specific output current, please refer to the instructions of the driver panel figure.

Microstep setting

Users can set the driver Microstep by the SW5-SW6 switches. The setting of the specific Microstep subdivision, please refer to the instructions of the driver panel figure.

Automatic half

current function

Users can set the driver half flow function by SW4. "OFF" indicates the quiescent current is set to half of the dynamic current, that is to say, 0.5 seconds after the cessation of the pulse, current reduce to about half automatically. "ON" indicates the quiescent current and the dynamic current are the same. User can set SW4 to "OFF", in order to reduce motor and driver heating and improve reliability.

Signal interfaces

PUL is the setting pulse input; DIR is the stepper motor direction input; OPTO is the power supply for signal port + 5V; ENA is the  motor free input.

Motor interfaces

A+ and A- are connected to a phase winding of motor; B+ and B- are connected to another phase winding of motor. If you need to backward, one of the phase windings can be reversed.

Power interfaces

It uses DC power supply. Recommended operating voltage is 20VDC-40VDC, and power consumption should be greater than 100W.

Indicator lights

There are two indicator lights. Power indicator is green. When the driver power on, the green light will always be lit. Fault indicator is red, when there is over-voltage or over-current fault, the red light will always be lit; after the driver fault is cleared, if re-power the red light will be off.

Installation

instructions

Driver dimensions:86×55×20mm, please refer to dimensions diagram. Please leave 10CM space for heat dissipation. During installation, it should be close to the metal cabinet for heat dissipation.