Warnings And Alarms; System Monitoring; Warning And Alarm Types; Warnings - Danfoss VLTAutomationDrive FC 360 Quick Manual

Warnings and Alarms

6 Warnings and Alarms

6.1 System Monitoring

The frequency converter monitors the condition of its
input power, output, and motor factors as well as other
system performance indicators. A warning or alarm may
not necessarily indicate a problem internal to the
frequency converter itself. In many cases, it indicates failure
conditions from input voltage, motor load or temperature,
external signals, or other areas monitored by the frequency
converter's internal logic. Be sure to investigate those areas
exterior to the frequency converter as indicated in the
alarm or warning.

6.2 Warning and Alarm Types

6.2.1 Warnings

A warning is issued when an alarm condition is impending
or when an abnormal operating condition is present and
may result in the frequency converter issuing an alarm. A
warning clears by itself when the abnormal condition is
removed.

6.2.2 Alarm Trip vs. Alarm Trip Lock

An alarm is issued when the frequency converter is
tripped, that is, the frequency converter suspends
operation to prevent frequency converter or system
damage. The motor will coast to a stop. The frequency
converter logic will continue to operate and monitor the
frequency converter status. After the fault condition is
remedied, the frequency converter can be reset. It will
then be ready to start operation again.
A trip can be reset in any of 4 ways:
•
Press [Reset]
•
Digital reset input command
•
Serial communication reset input command
•
Auto reset
Very serious faults cause alarms with trip lock which
require that input power be cycled before resetting the
alarm in any of the 4 ways described above.
®
VLT AutomationDrive FC 360 Quick Guide

6.3 Warning and Alarm Displays

Setup 1
Illustration 6.1
An alarm or trip-lock alarm will flash on display along with
the alarm number.
Setup 1
Illustration 6.2
In addition to the text and alarm code on the frequency
converter display, there are three status indicator lights.
Illustration 6.3
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MG06A102 - VLT is a registered Danfoss trademark
Status Quick
Menu
Status Quick
Menu
OK
O
Hand
Reset
On
Main
Menu
6 6
Main
Menu
Auto
On
31