PAR PCU 2 occurs when power control parameters are inconsistent, likely due to incorrect motor nominal kVA or power settings. The manual's first action is: “Improper motor nominal kVA or motor nominal power. Check for the following: 1.1 ≤ (9906 MOTOR NOM CURR * 9905 MOTOR NOM VOLT * 1.73 / P_N) ≤ 3.0 Where: P_N = 1000 * 9909 MOTOR NOM POWER (if units are kW) or P_N = 746 * 9909 MOTOR NOM POWER (if units are HR, e.g. in US)”
- Model
- ABB ACH550
- Display shows
- PAR PCU 2 (1005)
- Type
- Fault code
- Source
- Manual p. 28
What 1005 means
PAR PCU 2 p. 28
Common causes
- Parameter values for power control are inconsistent. p. 28
What to do
- Improper motor nominal kVA or motor nominal power. Check for the following: 1.1 ≤ (9906 MOTOR NOM CURR * 9905 MOTOR NOM VOLT * 1.73 / P_N) ≤ 3.0 Where: P_N = 1000 * 9909 MOTOR NOM POWER (if units are kW) or P_N = 746 * 9909 MOTOR NOM POWER (if units are HR, e.g. in US) p. 28
Before you service the product, read the safety instructions in the manual p. 2.
If 1005 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 1005; 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.