#GECKO G540 SETUP FULL#

This position will change with each motor so be sure to readjust if you change motors.

The trimpot has 270 degrees of motion and will have an audible вЂњsweet spotвЂќ when it is in proper position. In your CNC program set the axis being adjusted to move at 2 revolutions per second and use a screwdriver to turn the trimpot in the ADJUST hole on the top of the drive. The G540 is composed of four individual G250 motor controls, each of which has a designated pin outputting the smoothness adjust trimpot to the G540 motherboard. You should be able to move all axes at this time. Your step pulse width must be at least 2uS wide and the pulse polarity for the step and direction signals are ACTIVE HIGH.ДЄfter you configure your CNC program it is time to test the G540 for functionality. Use the pinout on page 7 to set up your programвЂ™s output pins or load the G540 XML configuration file from the G540 product page on the Geckodrive website. If you have holding torque and a green LED you can plug in your DB25 straight through cable to the G540 and your computer. If you do not then the motor is wired incorrectly or is damaged. If your motor is rated at 3.5A or above you can safely not use a current set resistor however, your G540 will not go into current standby mode which will result in increased motor heating.ДЄt this point you should have holding torque on the motors and a green LED lit. If your motor is rated at 2.8A per phase you will have to use a 2.8K 5% 1/4W resistor. The resistor is calculated by taking the current in amps and multiplying by 1000. If your motors are rated below 3.5A you must use a current set resistor across PIN 1 and PIN 5. Wire your motors to the included DB9 solder cup and secure the backshell connectors. Flip the switch to DISABLE and apply power to the G540 you should have a green LED lit indicating that setup is successful thus far. The switch is located near the 12-PIN TERMINAL STRIP on the top of the drive. The G540 has a switch allowing you to disable the charge pump feature, which makes it possible to verify the G540 works without having to have your DB25 cable plugged in. The red LED will be illuminated if there is no jumper connecting these two terminals. Without TERMINAL 10 shorted to ground the G540 will remain disengaged to the motors and will not respond to commands. The G540 is designed to fault unless there is a normally closed switch (functionally identical to a jumper wire) between TERMINAL 10 and TERMINAL 12 on the 12-PIN TERMINAL BLOCK. Once you have verified that the drive lights up turn your power supply off before continuing. Turn the power supply on and make sure that a red LED comes on. Failure to do so may result in physical damage to the connectors.Д¬AUTION! Never put a switch on the DC side of the power supply! This will damage, if not destroy, your drive due to a current inrush when the switch is first thrown.Д¬AUTION!В Power supply voltage in excess of 50 VDC will damage the G540.

The power supply voltage is determined by multiplying the square root of the motorвЂ™s inductance by 32, as in the example below for a 2mH rated motor:Д«e sure that your power supply is turned OFF when connecting or disconnecting it from the G540. Finally have a STEP and DIRECTION pulse source available.Д¬onnect your power supply positive to TERMINAL 11 and negative to TERMINAL 12.

The current set resistor may be a 1/4 Watt, 5% part. The power supply voltage must be determined by the inductance equation listed later or be between 4 times and 20 times the motorвЂ™s rated voltage.

Using a motor with a higher current rating will cause a proportional loss in torque, meaning a 5A motor will get 3.5/5 (70%) of its maximum torque. The motorвЂ™s rated phase current must be between 0 Amps and 3.5 Amps. fully warranties the G540 against workmanship defects for 1 year after its purchase date.Д«efore beginning, be sure to have a suitable step motor, a DC power supply suitable for the motor and a current set resistor.

#GECKO G540 SETUP FULL#

If you are dissatisfied with it for any reason at all within two weeks of its purchase date, you may return it for a full refund provided it is cosmetically unmarred and undamaged electrically in any way. Thank you for choosing to purchase the G540 4-Axis Drive System.

Gecko g540 setup