The following diagram describes the control pad functions of an E3 inverter, as described in section 5 of the manual: The following information configures the E3 for 3DTeks standard use case and this information may not be appropriate for other uses. Any wiring changes to the VFD must be done after ensuring the machine has been isolated from the power for 10 minutes. Regardless of the fact you may not be intending to come in to contact or modify the high voltage areas of the device – they are there and accessible! And so ask the electrician to program and complete the entire setup so that you have no reason to interact with this device.The image below shows the separation of Low and High voltage, ie which parts are safe for user access and which are not. The VFD that this is potentially a very dangerous device that is designed to be commissioned by a licensed electrician.The Shielded braid of the VFD cable should be connected to the PE (earth) on the VFD along with wire 4 to achieve best noise suppression.
see the gecko manual linked above for information on its use. Lastly, an opening in the board to access the smoothness adjust trimpot, which can largely be ignored.If your motors are running overly hot then turn this down a little, if you are suffering from lack of power turn this up a little. The desired resistance measurement between the two terminals is 2.5 to 3kOhm. There is also measurement point beside each trim pot marked in blue.Note that this is not smoothness tuning the trim pot mentioned in the manual. This takes place of the resistor to be soldered that is mentioned in the G540 manual. The GRBL Gecko controller has a trim pot for setting the current limiting of each stepper motor which are circled red in the image below.Please ensure the charge pump switch on the gecko is turned off. Our implementation of this device overrides some of the information provided in the manual, for example, the motor current tuning and motor wiring. Gecko Drive G540 and GRBL Gecko Controller Settings.įor reference, the G540 User manual. The cooler will be marked for either 12V or 12-48V connection.The Control Card is pressed onto the top of the G540 and holds its self in place firmly.The Cooler plate sits below the G540 on its shorter standoffs, with the fan’s sticker side facing the bottom of the G540.The Gecko G540 and Cooler are mounted and separated using standoffs.PLEASE READ IMPORTANT NOTES AT BOTTOM BEFORE POWERING UP THE VFD!!!! GRBL GECKO Power & INVERTEK VFD Connections Please contact 3DTek for any assistance wiring up or configuring these devices. These may or may not be useful for other Gecko use cases. Wiring diagrams for 3Dtek specific GRBL + Gecko G540 Combo.