Fault code18
Unbalance fault occurs due to power module imbalance in parallel-connected units. The manual's first action is: “If the fault occurs again, ask instructions from the distributor near to you.”
- Model
- Vacon NXS/P
- Display shows
- Unbalance (18)
- Type
- Fault code
- Source
- Manual p. 152
What 18 means
Unbalance p. 152
Common causes
- Unbalance between power modules in parallellled power units. p. 152
What to do
- If the fault occurs again, ask instructions from the distributor near to you. p. 152
Before you service the product, read the safety instructions in the manual p. 13.
If 18 is still not resolved
- Contact service or dealer for assistance. p. 13 “WARNING! Before you do electrical work, make sure that there is no voltage in the components of the drive.”
- Contact service or dealer for assistance. p. 14 “CAUTION! Do not touch the components on the circuit boards. Static voltage can cause damage to these components.”
This page summarises what the manufacturer’s manual says about 18; 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 Vacon. Found a mistake? Report an error.