Vacon NXS/P Error 7: Saturation trip

AC drive · taken from the manufacturer’s manual, pages cited

Fault code7

Saturation trip fault indicates a defective brake resistor, short-circuit, or overload condition that cannot be reset and requires power shutdown. The manual's first action is: “This fault cannot be reset from the control panel. Switch off the power. DO NOT RESTART THE DRIVE OR CONNECT THE POWER! Ask instructions from the factory. If this fault shows at the same time with Fault 1, do a check of the motor cable and the motor.”

Model
Vacon NXS/P
Display shows
Saturation trip (7)
Type
Fault code
Source
Manual p. 150

What 7 means

Saturation trip p. 150

Common causes

  • defective component brake resistor short-circuit or overload p. 150

What to do

  1. This fault cannot be reset from the control panel. Switch off the power. DO NOT RESTART THE DRIVE OR CONNECT THE POWER! Ask instructions from the factory. If this fault shows at the same time with Fault 1, do a check of the motor cable and the motor. p. 150

Before you service the product, read the safety instructions in the manual p. 13.

If 7 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 7; 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.