PAR PCU1 occurs when motor nominal frequency or speed parameters are inconsistent with power control settings. The manual's first action is: “Improper motor nominal frequency or speed. Check for both of the following: 1 ≤ (60 * 9907 MOTOR NOM FREQ / 9905 MOTOR NOM VOLT) ≤ 16 0.8 ≤ 9908 MOTOR NOM SPEED / (120 * 9907 MOTOR NOM FREQ / Motor Poles) ≤ 0.992”
- Model
- ABB ACH550
- Display shows
- PAR PCU1 (1009)
- Type
- Fault code
- Source
- Manual p. 28
What 1009 means
PAR PCU1 p. 28
Common causes
- Parameter values for power control are inconsistent. p. 28
What to do
- Improper motor nominal frequency or speed. Check for both of the following: 1 ≤ (60 * 9907 MOTOR NOM FREQ / 9905 MOTOR NOM VOLT) ≤ 16 0.8 ≤ 9908 MOTOR NOM SPEED / (120 * 9907 MOTOR NOM FREQ / Motor Poles) ≤ 0.992 p. 28
Before you service the product, read the safety instructions in the manual p. 2.
If 1009 is still not resolved
- contact the factory or your local Authorized Service Center for repair or replacement. p. 2 “Never attempt to repair a malfunctioning ACH550; contact the factory or your local Authorized Service Center for repair or replacement.”
This page summarises what the manufacturer’s manual says about 1009; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with ABB. Found a mistake? Report an error.
