FANUC Alarm PNT2-898 — HIGH Positive Canister TORQUE
Manufacturer wording — %sHIGH Positive Canister TORQUE
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC PNT2-898 (“HIGH Positive Canister TORQUE”): The maximum tensile force on the ball screw has been exceeded. First check: Ensure that the retraction speed is not too fast during the fast fill cycle.
Updated 2026-09-17 · LogrobotLM reference
Description
The maximum tensile force on the ball screw has been exceeded. When this occurs, its usually when the ball screw is retracting. There may be a vacuum in the canister which is causing excessive torque when the motor is retracting the canister's piston.
Remedy
Ensure that the retraction speed is not too fast during the fast fill cycle. Ensure that the pCI and pCC valves are open during the fill cycles.
Related codes
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. How this reference is built →