Troubleshooting; Alarm, Warning And Extended Status Word; Alarm And Warning Messages - Danfoss DriveMotor FCP 106 BACnet Operating Instructions Manual

Troubleshooting

7 Troubleshooting
7.1 Alarm, Warning and Extended Status
Word

7.1.1 Alarm and Warning Messages

General
There is a clear distinction between alarms and warnings.
In the event of an alarm, the frequency converter enters a
fault condition. After the cause for the alarm has been
cleared, the master must acknowledge the alarm message
to restart operation of the frequency converter. A warning,
on the other hand, may appear when a warning condition
arises, then disappear when conditions return to normal
without interfering with the process.
Alarm words and warning words are shown on the display
in hex format. If there is more than one warning or alarm,
a sum of all warnings or alarms is shown. Warning words
and alarm word are displayed in parameters 16-90 Alarm
Word to 16-95 Ext. Status Word 2. For more information on
the individual alarms and warnings, refer to the VLT
DriveMotor FCP 106 and FCM 106 Programming Guide.
®
VLT DriveMotor FCP 106 & FCM 106 BACnet Operating Instructions
Warnings
All warnings within the frequency converter are
represented by a single bit within a warning word. A
warning word is always an action parameter. Bit status [0]
FALSE means no warning, while bit status [1] TRUE means
warning. Each bit status has a corresponding text string
message. In addition to the warning word message the
master is also notified via a change to bit 7 in the status
word.
Alarms
Following an alarm message the frequency converter
enters a fault condition. Only after the fault has been
rectified and the master has acknowledged the alarm
message by setting bit 3 in the control word, can the
frequency converter resume operation. All alarms within
the frequency converter are represented by a single bit
within an alarm word. An alarm word is always an action
parameter. Bit status [0] FALSE means no alarm, while bit
status [1] TRUE means alarm.
®
MG03O102 - Danfoss A/S © 12/2013. All rights reserved.
7 7
25