TGK Parts Blog

Maintenance guides, failure analysis and replacement-part advice for industrial automation equipment.

5 Symptoms of a Failed VFD Drive Board — and How to Replace It

Error codes, no display, blown fuses? Learn the common failure symptoms of frequency inverter drive boards, how to diagnose them, and what to check before ordering a replacement board.

How to Choose the Right PLC I/O Module for Your Replacement

Digital vs analog, sinking vs sourcing, channel count and voltage ratings — a practical guide to identifying the correct PLC input/output module replacement from the nameplate.