Program a Replacement CFW Drive

Use this procedure after installing a replacement WEG CFW drive. The drive number must be programmed before the Retro C can initialize and control the correct saw head or axis.

Safety: VFD installation and wiring must be completed by a qualified technician with power locked out and verified off. This article begins after the replacement drive has been installed and its wiring has been checked.

Assign the Drive Number

1. On the drive keypad, press Enter once.
2. Use the down arrow to select NET, then press Enter.
3. Use the arrow buttons to select parameter 308, then press Enter.
4. Enter the ID that corresponds to the blade position:
   • Blade 1: 1
   • Blade 2: 2
   • Blade 3: 17
   • Blade 4: 18
   • Blade 5: 19
5. Press Enter to save the drive number. Reopen parameter 308 and confirm that the value was retained.

Initialize the Drive

1. Open the Repair tab on the Retro C touchscreen.
2. Select the saw head or axis where the replacement drive was installed, then press Calibrate.
3. Open the VFD tab and press Init once.

What Correct Looks Like

Confirm that the drive initializes without a disconnected-drive warning. With the machine clear and all guards in place, command a controlled movement and verify that the selected head or axis—not another device—responds. Stop and contact Enventek Technical Support if the wrong device moves, the drive number will not save, or a fault remains on the drive.