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FANUC Alarm PNT1-662 — Failed to reach setpoint

Manufacturer wording — %sFailed to reach setpoint
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC PNT1-662 (“Failed to reach setpoint”): This is caused by a failure of the AccuAir system to reach the setpoint within the tolerance band during the allotted time. First check: If the Fan Air control I/P transducer is noisy or broken, change it.

Updated 2026-09-17 · LogrobotLM reference

Description

This is caused by a failure of the AccuAir system to reach the setpoint within the tolerance band during the allotted time. The time that the system is allowed to take to reach setpoint is controlled by the Min. Setpoint reached (ms) parameter. This failure might be caused by a sticking transducer, a system that is too slow for the current setting of Min. Setpoint reached, or a system yield that is too large for the tolerance band setting.

Remedy

If the Fan Air control I/P transducer is noisy or broken, change it. If the calibration yield values are more than half of the min. Tolerance band, then increase this tolerance value. If the Flow delay parameter is large, or this alarm is occurring on many robots, then increase the Minimum setpoint reached parameter.

Related codes

PNT1-660Slow air flow leak detectedPNT1-661Fast air flow leak detectedPNT1-6630 air flow rate timeoutPNT1-664Warning, learn item failed

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