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STEP 2: SETTING MOTOR PHASE CURRENT 

Motor phase current may be set one of three ways: The onboard DIP switches, an external current set resistor or an external 
voltage input. All current settings will be in reference to the single phase peak current of the stepper motor. 

ONBOARD DIP SWITCH SETTING 

Please consult the diagram below for the proper switch setting for your motor phase current. Leave CN1 PIN2 floating if this 
option is being used. RED = OFF, GREEN = ON in the current set diagram. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for GR214V

Page 1: ...GR214V MANUAL BULLETPROOF STEP MOTOR DRIVE...

Page 2: ...resolution choices Ranging from half step to 256 microstep resolution a stepper motor can be run with resolution of up to 51 200 pulses per revolution Backwards compatibility with decimal resolution...

Page 3: ...on the PCB The pinouts from left to right while facing the connector are below All 8 pins on CN2 are optically isolated and there is no galvanic connection from any pin to the drive PIN NUMBER CN1 CN2...

Page 4: ...increment is dependent upon the settings of the resolution 3 DIR This input is used to change the direction of the motor 4 5V This 5VDC input is used to supply power to the isolated logic inputs 5 ENA...

Page 5: ...CONNECTION DIAGRAM...

Page 6: ...ly 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 4...

Page 7: ...or an external voltage input All current settings will be in reference to the single phase peak current of the stepper motor ONBOARD DIP SWITCH SETTING Please consult the diagram below for the proper...

Page 8: ...2 3K resistor the nearest 5 value is a 2 2K resistor which would result in roughly 96 of the motor s rated current 4 4A The resistor leads should be kept as short as possible to prevent noise problem...

Page 9: ...dby Amps Run Amps Standby Amps If a motor is rated for 6A and a standby current of 2A is required the formula would be worked out as below R2 500 6A 2A 6A 2A R2 500 12 4 R2 1500 In this example you wo...

Page 10: ...maximum current draw will be 15mA on all inputs An explanation for each input is below RESET This pin is optional This pin connects to the controller s RESET output otherwise it can be left unconnecte...

Page 11: ...idband increasing torque and motor stability in unstable step motor regions Full Step Morphing Like all other Geckodrive stepper drives the GR214V has full step morphing Between 3 6 RPS the drive will...

Page 12: ...applications i e a vertical axis it is recommended to adjust it to 70 or less ENVIRONMENTAL RATINGS The GR214V is rated for commercial use with an operating temperature range of 0C 75C 32F 167F and a...

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