FANUC Alarm PNT1-636 — Max. flow is below midpt. output
Manufacturer wording — %sMax. flow is below midpt. output
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC PNT1-636 (“Max. flow is below midpt. output”): During calibration, it was found that the maximum amount of flow occurred with the command output at only the middle (midpoint) of the range. First check: Check that the I/P transducer is the right range.
Updated 2026-09-17 · LogrobotLM reference
Description
During calibration, it was found that the maximum amount of flow occurred with the command output at only the middle (midpoint) of the range. This indicates that there is the incorrect equipment is installed or the equipment is faulty. This might also indicate a large air leak.
Remedy
Check that the I/P transducer is the right range. If not, replace it. Check that the booster has the correct ratio, typcially 1 to 1. If the alarm log also has a leak alarm follow the remedies for that alarm. If this equipment must be used, reduce the Max. control value for this parameter by about 20%.
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 →