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G201X STEP MOTOR DRIVE

REV 5: SEPTEMBER 13, 2010

Thank you for purchasing the G201X drive. The G201X microstep drive is warranted to be free of manufacturing defects for 1

year from the date of purchase. Also anyone who is dissatisfied with it or is unable to make it work will be cheerfully refunded the

purchase price if the G201X is returned within 15 days of the purchase date.

PLEASE READ FIRST BEFORE USING THE G201X

Before beginning, be sure to have a suitable step motor, a DC power supply suitable for the motor and a current set resistor. The

motor’s rated phase current must be between 0 Amps and 7 Amps. The power supply voltage must be between 4 times and 20

times the motor’s rated voltage. The current set resistor may be a 1/4 Watt, 5% part. Finally have a STEP and DIRECTION pulse

source available.

DIFFERENCES BETWEEN THE G201X AND G201

The G201X is 100% backwards compatible with the G201 and G210. It has several new features and performance

enhancements:

1.)

STEP and DIRECTION is +3.3VDC and +5VDC compatible at 2.5mA

2.)

Recirculate mode during STANDBY greatly reduces motor heating while stopped

3.)

No external 470uF capacitor needed

4.)

Power-on RESET

5.)

Direction is clocked in on the active step pulse edge

6.)

No internal jumpers, no current set resistor, DIP switch settings

7.)

Low motor heating while stopped

8.)

Universal step and direction COMMON

G201X TERMINAL WIRING

The G201X uses a 2-piece modular main connector. The connector is split in two pieces; terminals 1 through 6 (power supply and

motor leads) and terminals 7 through 12 (control interface). Each can be removed separately by pulling the connector body

upwards and off of the mating header pins on the G201X. The connectors must initially be removed to mount the G201X to a

heatsink or chassis.

TERMINAL 1

Power Ground

Connect the negative (black) lead of your power supply to this terminal.

TERMINAL 2

Power (+)

Connect the positive (red) lead of your power supply to this terminal. It must be between +18VDC to

+80VDC.

TERMINAL 3

Motor Phase A

Connect one end of your “Phase A” motor winding here.

TERMINAL 4

Motor Phase /A

Connect the othe

r end of your “Phase A” motor winding here.

TERMINAL 5

Motor Phase B

Connect one end of your “Phase B” motor winding here.

TERMINAL 6

Motor Phase /B

Connect the other end of your “Phase B” motor winding here.

TERMINAL 7

Disable

This terminal will force the winding currents to zero when shorted to ground (TERMINAL 12).

TERMINAL 8

Direction

Connect the DIRECTION signal to this terminal.

TERMINAL 9

Step

Connect the STEP signal to this terminal.

TERMINAL 10

Common

Connect

the controller’s +3.3VDC, +5VDC or GND to this terminal.