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HEATSINKING
  
 
The G201X needs heatsinking for current settings greater than 3 amps. The case temperature (measured on the bottom plate) 
should not exceed 70 degrees C, and for best life should be kept to 50 degrees or less. Use heatsink compound between the 
G201X and the heatsink.  
 

CAUTION! Current settings above 3 Amps without a heatsink will result in damage to the G201X. 

 

The drive must be heatsinked to a piece of aluminum, preferably with fins and a fan to increase heat dissipation and surface 
area. Do not screw the drives directly to the door of your control cabinet, as this will typically not provide adequate heatsinking 
properties.  
 
OPTION SET SWITCH  
 
The G201X has 3 settable options which are set via the 10 position DIP switch (visible through the aluminum cover). These 
options are: 
 

1.)

 

Current Set Switches 

 

The current can be set in 0.2A increments using the onboard DIP switch positions SW1, SW2, SW3, SW4, and SW5 or with a 
current set resistor. If you are using the DIP switch method, be sure to have nothing connected in TERMINALS 11 and 12; if 
you are using a current set resistor be sure to set SW1, 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 function when “ON” 
and disables this function when “OFF”. 

 

3.)

 

NEMA-34 and NEMA-42  Motor 

 

Use this option if the drive is to be used with NEMA-34 and NEMA-42 size motors. This option adjusts the midband 
compensation circuit for optimum performance when using a NEMA-34 and NEMA-42 motors. SW10 enables this function 
when “OFF” and disables this function when “ON”. SW10 should be “ON” when used with NEMA-17 and NEMA-23 motors.  

 
LOW SPEED SMOOTHNESS ADJUST TRIMPOT 
 
This trimpot adjusts the motor for the smoothest possible low-speed operation. Set the motor speed to about 1/2 revolution per 
second, and then turn the trimpot until a distinct null is noted in the motor’s vibration. This will result in the most even microstep 
placement for a given motor and power supply voltage. 
 
RESTORING FACTORY DEFAULTS 
 
To restore the G201X to the factory settings set the trimpot to the 11 o’clock position and set SW1-SW10 to “ON”. 
 
 
 
 
 
 
 
 

 
 

 

 
 

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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