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Thank you for purchasing the G201 drive. The G201 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 G201 is returned within 15 days of the purchase date.
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 0.3 Amp 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.
G201 TERMINAL WIRING
The G201 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 G201. The connectors must initially be removed to mount the G201 to a
heatsink or chassis.
Power Ground
TERMINAL 1
Connect the negative (black) lead of your power supply to this terminal.
Power (+)
TERMINAL 2
Connect the positive (red) lead of your power supply to this terminal. It must be between +18VDC to
+80VDC.
Motor Phase A
TERMINAL 3
Connect one end of your "Phase A" motor winding here.
Motor Phase /A
TERMINAL 4
Connect the other end of your "Phase A" motor winding here.
Motor Phase B
TERMINAL 5
Connect one end of your "Phase B" motor winding here.
Motor Phase /B
TERMINAL 6
Connect the other end of your "Phase B" motor winding here.
Disable
TERMINAL 7
This terminal will force the winding currents to zero when shorted to ground (TERMINAL 12).
Direction
TERMINAL 8
Connect the DIRECTION signal to this terminal.
Step
TERMINAL 9
Connect the STEP signal to this terminal.
Common
TERMINAL 10
Connect the controller's +5VDC supply to this terminal.
Current Set
TERMINAL 11
Connect one end of your current set resistor to this terminal.
Current Set
TERMINAL 12
Connect the other end of your current set resistor to this terminal.
POWER SUPPLY WIRING
Power Ground
TERMINAL 1
Connect the power supply ground to term.1
Power (+)
TERMINAL 2
Connect the power supply "+" to this terminal
G201 STEP MOTOR DRIVE
REV 16: August 6, 2009
PLEASE READ FIRST BEFORE USING THE G201
1
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Table of Contents
Summary of Contents for Geckodrive G201
- Page 1 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 G201. The connectors must initially be removed to mount the G201 to a heatsink or chassis.
- Page 2 CAUTION! Power supply voltage in excess of 80 VDC will damage the G201. If the power supply is more than 1 foot (300 mm) away from the G201, a 470uF capacitor must be connected across the G201’s power supply terminals. Keep the capacitor lead length to 1 inch (25 mm) or less.
- Page 3 The four options are described below. (1) AUTO CURRENT REDUCTION: The G201 reduces motor phase current to 33% of the set value when the motor is stopped. If enabled, this reduction occurs 1 second after the last step pulse is sent to the drive. Auto current reduction can be enabled or...
- Page 4 CONVERTING THE G201 TO A G210 The G201 can be converted to a G210 by installing the G901 step pulse multiplier board. Remove the cover of the drive, and then use a small pair of needle-nose pliers to remove the opto-isolator from its socket. Plug the G901 board into this socket and replace the cover.
- Page 5 It is recommended to use small needle-nose pliers or tweezers to move the jumpers on the internal headers. RESTORING FACTORY DEFAULTS To restore the G201 to the factory settings set the trimpot to the 11 o’clock position and put the jumpers on “STANDBY ENABLE” and “NORMAL” on the option jumper block.
- Page 6 G201 STEP MOTOR DRIVE REV 16: August 6, 2009 2.5000" G201A 10 uStep Drive (63.5 mm) 1.7500" (44.5 mm) Cover: Aluminum, Anodized Plate: Aluminum, Hard Anodized Color: Black, Yellow Text Weight: 3.6 oz (100 gm) Size: 2.5" X 2.5" X 0.825"...
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