Vacon 100 Flow Error 51: Device external fault

Vacon 100 Flow drive · taken from the manufacturer’s manual, pages cited

Fault code51

A user-specified digital input fault occurred as set by parameter P3.5.1.11 or P3.5.1.12. The manual's first action is: “This is a user-specified fault. Do a check of the digital inputs and schematics.”

Model
Vacon 100 Flow
Display shows
Device external fault (51)
Type
Fault code
Source
Manual p. 375

What 51 means

Device external fault p. 375

Common causes

  • The digital input signal that is set with parameter P3.5.1.11 or P3.5.1.12 was activated. p. 375

What to do

  1. This is a user-specified fault. Do a check of the digital inputs and schematics. p. 375

Before you service the product, read the safety instructions in the manual p. 88.

If 51 is still not resolved

  • contact your nearest service center or partner. p. 201
    “If the access code is lost, contact your nearest service center or partner.”
  • Go into the submenu Reset faults and use the parameter Reset Faults. p. 187
    “Go into the submenu Reset faults and use the parameter Reset Faults.”
Open the manual at page 375 All 100 Flow error codes Manual details & download

This page summarises what the manufacturer’s manual says about 51; 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.