Scrap Belt or Scrap Incline VFD Disconnected: Troubleshooting

Before You Begin

Safety: Stop the machine, follow the site lockout/tagout procedure, verify that hazardous energy is controlled, and release or secure stored mechanical and pneumatic energy before opening a panel, removing a guard, or adjusting components. Electrical work must be performed by a qualified technician.

A customer called and stated that after hitting the E-Stop that both of the VFDs for the Scrap Incline & Scrap Belt were disconnected (Yellow).

Steps Taken

• Restart VC1 – No Change
• Restart Saw – No Change
• Unplug the RJ11 jack from VFD 30 – No Change
• Unplug the RJ11 jack from VFD 31 – No Change
• Asked the customer to open the scrap enclosure and confirm that the (Brown) (White/Blue) (Blue) wires going into terminals 93, 94, & 95 are fully inserted and not loose or easy to pull out.

• This was the problem the White/Blue wire wasn’t making a solid connection. Upon wiggling the wire the scrap belt and the Scrap incline VFDs connected & disconnected.
• The customer had to fully insert the wire and then tighten the screw in the terminal to lock the wire in place.

Confirm the Result

After checking all connections and reinstalling covers, restore power through the approved startup procedure. Confirm that the correct device comes online without a disconnected-drive or communication warning, then test its command, direction, and stopping response in a controlled mode.

Escalate When

If the issue remains, record the exact on-screen message, affected component, indicator-light state, and the last change made. Provide those details to Enventek Technical Support; do not repeatedly recalibrate or replace parts without identifying the cause.