Warning And Alarm Types; Warning And Alarm Displays - Danfoss VLT Decentral Drive FCD 302 Operating Manual

VLT® Decentral Drive FCD 302
Operating Guide
Trip An alarm occurred and the motor is stopped. Once the cause of the alarm is cleared, the drive can be reset man-
ually by pressing [Reset] or remotely by control terminals or serial communication.
Trip lock An alarm occurred, and the motor is stopped. When the cause of the alarm is cleared, cycle power to the drive. The
drive can then be reset manually by pressing [Reset], or remotely by control terminals or serial communication.
In auto/remote mode, the drive requires external commands to execute functions.

6.6 Warning and Alarm Types

Warnings
A warning is issued when an alarm condition is impending, or when an abnormal operating condition is present and may result in
the drive issuing an alarm. A warning clears by itself when the abnormal condition ceases.
Alarms
An alarm indicates a fault that requires immediate attention. The fault always triggers a trip or a trip lock. Reset the system after an
alarm.
Trip
An alarm is issued when the drive is tripped, meaning that the drive suspends operation to prevent damage to the drive or system.
The motor coasts to a stop. The drive logic continues to operate and monitor the drive status. After the fault condition is remedied,
the drive can be reset. It is then ready to start operation again.
Trip lock
Input power is cycled. The motor coasts to a stop. The drive continues to monitor the drive status. Remove input power to the drive,
correct the cause of the fault, and reset the drive.
Resetting the drive after a trip/trip lock
A trip can be reset in any of 4 ways:
• Press [Reset] on the LCP.
• Digital reset input command.
• Serial communication reset input command.
• Auto reset.

6.7 Warning and Alarm Displays

• A warning is shown in the LCP along with the warning number.
• An alarm flashes along with the alarm number.
Status
0.0Hz
0.0Hz
Earth Fault [A14]
Auto Remote Trip
Illustration 27: Alarm Example
In addition to the text and alarm code in the LCP there are 3 status indicator lights.
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Maintenance, Diagnostics and
Troubleshooting
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