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DISABLE PIN 
 
TERMINAL 7  

Disable 

 

 

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

 

 

 

 

Shorting this input to ground (term. 7 to 12) forces winding currents to zero and stops all output switching activity. The G201X 
will continue totalizing step and direction inputs if any are sent. The power supply current drops to less than 15mA. The motor 
will return to its original position when the disable input is released if no step pulses have been sent and the motor has not been 
moved more than 2 full steps. 
 
STEP AND DIRECTION INPUTS 
 
TERMINAL 8  

Direction 
 Connect the DIRECTION line to this terminal. 

 
TERMINAL 9  

Step  
Connect the STEP line to this terminal. 

 
TERMINAL 10  

Common 

 

 

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

 
These inputs are optically isolated from the rest of the drive. Terminal 10 is the common connection for the opto-isolators and 
must be connected to the +3.3VDC, +5VDC or GND of your indexer or pulse generator. These inputs are meant to be driven by 
3.3V to 5.5V logic capable of sourcing or sinking 2.5mA of current. The minimum logic “0” time is .5uS while the minimum logic 
“1” time is 3uS with 3.3V – 5V connected on the COMMON terminal. The minimum logic “0” time is 3uS while the minimum logic 
“1” time is 0.5uS when connected to GND on the COMMON terminal. Microstepping occurs on the falling edge of the step input 
when COMMON is a positive voltage and on the rising edge when COMMON is connected to GND and on the rising edge when 
connected to 3.3V – 5V. 
 
CURRENT SET RESISTOR (OPTIONAL) 
 
TERMINAL 11  

Current Set (OPTIONAL) 
Connect the current set resistor to this terminal. 

TERMINAL 12  

Current Set (OPTIONAL) 
Connect the other end of the current set resistor to this terminal. 

 
DIP Switches 1, 2, 3, 4, and 5 must be set to ON if an external current set resistor is used.  
 
This input programs the G201X’s current output to the motor windings. The G201X will accommodate motor winding currents 
from 0A to 7A when using an external current set resistor. Use the following equation to calculate the resistor value in kilo-ohms: 
 
R (in kilo-ohms) = 47 * I  /  (7 – I)  
 
Shown are the current set resistor values for motor current in .5A increments.  
 

1.0A 

    –         7.5K 5% 1/4W 

1.5A 

    –          13K 5% 1/4W 

2.0A 

    –          18K 5% 1/4W 

2.5A 

    –          27K 5% 1/4W 

3.0A 

    –          36K 5% 1/4W 

3.5A 

    –          47K 5% 1/4W 

4.0A 

    –          62K 5% 1/4W 

4.5A 

    –          82K 5% 1/4W 

5.0A 

    –        120K 5% 1/4W 

5.5A 

    –        180K 5% 1/4W 

6.0A 

    –        270K 5% 1/4W 

6.5A 

    –        620K 5% 1/4W 

7.0A 

    –      OPEN 5% 1/4W 

Summary of Contents for G201X

Page 1: ...G201X G210X MANUAL STEP MOTOR DRIVE ...

Page 2: ...A Power Dissipation 1 13 W Temperature 0 70 C Humidity 0 95 Motor Inductance 1 50 mH Input Frequency 0 200 kHz Step Pulse 0 Time COMMON 3 3V 5V 0 5 uS Step Pulse 1 Time COMMON 3 3V 5V 3 uS Step Pulse 0 Time COMMON GND 3 uS Step Pulse 1 Time COMMON GND 0 5 uS Direction Setup 0 uS Signal Voltage 3 3 5 VDC Weight 3 6 oz ...

Page 3: ...ally 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 other end of y...

Page 4: ...500uH or greater but generally no more than 7mH A more accurate calculation of power supply voltage is to find your motor s inductance and put it into the following equation 32 mH inductance Power Supply Voltage If your motor has 2mH of inductance the equation would look as follows 32 2 45 12V MOTOR CONNECTION TERMINAL 3 Phase A Connect one motor winding to this terminal TERMINAL 4 Phase A Connect...

Page 5: ...ic 0 time is 5uS while the minimum logic 1 time is 3uS with 3 3V 5V connected on the COMMON terminal The minimum logic 0 time is 3uS while the minimum logic 1 time is 0 5uS when connected to GND on the COMMON terminal Microstepping occurs on the falling edge of the step input when COMMON is a positive voltage and on the rising edge when COMMON is connected to GND and on the rising edge when connec...

Page 6: ... SW2 SW3 SW4 and SW5 to the ON position 2 Automatic Current Standby The G201X reduces motor phase current to 70 of the set value when the motor is stopped This can reduce motor heating up to half while the motor is not moving If enabled this reduction occurs 1 second after the last step pulse is sent to the drive Full current is restored immediately upon resumption of step pulses SW9 enables this ...

Page 7: ...OPTION SET SWITCHES ...

Page 8: ... It is recommended that needle nose pliers or tweezers be used to adjust the jumper settings The power to the G210X must be turned off before any adjustment is to be made on the step pulse multiplier METHOD OF OPERATION FOR STEP PULSE MULTIPLIER The G901X step pulse multiplier still allows all of the benefits of microstepping at low speeds and full stepping at high speeds that the G201X has The st...

Page 9: ...IVE INC PRODUCTS ARE NOT DESIGNED AUTHORIZED OR WARRANTED TO BE SUITABLE FOR USE IN LIFE SUPPORT DEVICES OR OTHER CRITICAL APPLICATIONS INCLUSION OF GECKODRIVE INC PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE PURCHASER S OWN RISK In order to minimize risks associated with the purchaser s application adequate design and operating safeguards must be provided by the purchaser to min...

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