Gecko 540 and VFD 10VDC Question Gecko's manual suggests that maximum voltage of the VFD 10VDC line (pin 9) is 12V. The NowForever D100 series VFD that came with the machine is rated at 12V; however the multimeter suggests it more like 13.4VDC ?

Question: How to I get the VFD to display rotation speed in RPM? Current Solution. To calculate RPM use this formula, in which you will have to find RPM's when you have Hz. (Variable Frequency Drive also called an Inverter) to the computer or CNC motion electronics. There is a manual Here I take a close look at the operation of the common "nowforever" VFD that is included with many of the Chinese CNC and 6090 routers. gr8life, If your motor is turning 4000, then your vfd is capable of creating frequencies above 60. Your test case with a 4 pole at 60 hz is correct by the numbers. 1800 is synchronous speed for a 4 pole machine. feed this to the G540's VFD input voltage. To be able to switch between automatic and manual operation of the spindle speed we'll add in a small SPDT switch as shown. This switch only changes which source, the G540 or speed pot, is connected to P2. NOTE: If you have one of our STDR-4C controls the VFD signals for the G540 are Figure2-2 B1000 series inverter size Note: Net weight, 1.04KG Gross weight (include user manual after package), 1.22KG 2.2.4 LED Keypad Display Unit Size Through it, operation and configuration of the inverter can be done. Please refer to its size and configuration in Figure 2-3. Figure2-3 Keypad display unit Wiring Nowforever D100/E100, Gecko G540 , and Power Supply. the relay in the video is some type of filter, remember to double check your wiring before plugging it in. Gecko G540 Fuse Replacement Blew the fuse in my Gecko G540 and got the replacement 125c 10A littlefuse, found out Kansas City Electronics Supply had them on hand. PS: you can use the keyboard to control the direction of the axis, and also you can use the manual control keyboard of Mach 3 by using