Specifications

Miniature size stepper driver
Current output 0-2 amps, 1.5-4 amps and 3-8 amps
For 2 phase hybrid bipolar stepper motors

Stepper Driver Terminal Description

 

Stepper Driver Description of Screw Terminals

Terminal No. / Color	Description			Input
				MIN    NOM    MAX	UNIT
1 / Red	V+	Supply voltage	UIM24004-8	12                  40	VDC
			UIM24002	10                  35
2 / Black	GND	Supply voltage ground		0	VDC
3 / White	Vcc	Opto-coupler common anode		5(1)	VDC
4 / Green	DIR	Direction input(2)		GND               Vcc	VDC
5 / Cyan	STEP	Stepping pulse input(3)		GND               Vcc	VDC
6 / Blue	EN	Enable the Driver(4)		GND               Vcc	VDC

Note:

(1)     Please refer to “optically isolated input interface” section for details.

(2)     Input is considered high level if this terminal is not connected.

(3)     Low-level pulse duration should > 8μs.  Maximum pulse frequency is 50 KHz.

(4)     An active low-level input shuts down power supply to the motor. High-level input or left open makes the Driver fully working. When awaken from shutdown mode, wait 1 millisecond before sending pulse.

Note: To avoid damaging, make sure the phase winds are connected correctly. Resistance between leads of different phases is usually > 100KW.  Resistance between leads of the same phase is usually < 100W.

 

 

Motor Wiring Pads (at the bottom of the stepper driver) 

Pad A + / A- : Connect to the stepper motor phase A

Pad B+ / B- : Connect to the stepper motor phase B