KEBA HT401-222-4/0/21572 Hand Terminal

The KEBA HT401‑222‑4/0/21572 is a handheld teach‑pendant used to program and monitor Keba servo drives and controllers, operating on 24 V DC with a 0.3 A current rating. Common failure points for this class of hand terminals include worn button contacts, degraded keypad membrane, power supply dropout or damaged internal PCB traces due to vibration or moisture ingress. First‑check diagnostics: verify the 24 V input voltage and continuity to the terminal board; inspect the keypad surface for cracks or residue and test each key contact with a multimeter; review any error codes displayed on the pendant’s screen for indications of communication loss or drive faults.[oss-gpt-20b]

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