Fault code1006
EXT ROMISSING means an extension relay module is missing and outputs have non-zero values. The manual's first action is: “Extension relay module not connected and 1410...1412 RELAY OUTPUTS 4...6 have non-zero values.”
- Model
- ABB ACH550
- Display shows
- EXT ROMISSING (1006)
- Type
- Fault code
- Source
- Manual p. 28
What 1006 means
EXT ROMISSING p. 28
Common causes
- Parameter values are inconsistent. p. 28
What to do
- Extension relay module not connected and 1410...1412 RELAY OUTPUTS 4...6 have non-zero values. p. 28
Before you service the product, read the safety instructions in the manual p. 2.
If 1006 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 1006; 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.