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FANUC Alarm PNT1-070 — Conveyor direction incorrect

FANUC PNT1-070 (“Conveyor direction incorrect”): For continuous line systems, the robot has determined the conveyor is running in the wrong direction. First check: Swap the leads on the encoder repeater board so that the encoder counts positive pulses instead of negative.

Updated 2026-08-29 · LogrobotLM reference

Description

For continuous line systems, the robot has determined the conveyor is running in the wrong direction. Part detects will be ignored by the robot.

Remedy · Remède

Swap the leads on the encoder repeater board so that the encoder counts positive pulses instead of negative.

Frequently asked · Questions fréquentes

What does FANUC alarm PNT1-070 mean?
FANUC PNT1-070 (“Conveyor direction incorrect”): For continuous line systems, the robot has determined the conveyor is running in the wrong direction. Part detects will be ignored by the robot.
How do you troubleshoot FANUC alarm PNT1-070?
Swap the leads on the encoder repeater board so that the encoder counts positive pulses instead of negative.

Related codes / Codes liés

PNT1-068Encoder count rolloverPNT1-069Part Detect less than min distPNT1-071%s skipped-over max travelPNT1-072Tracking encoder disconnected

Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →