Operation
status
Description
Stop
The drive has received a stop command from 1 of the following:
•
LCP.
•
Digital input.
•
Serial communication.
Trip
An alarm occurred and the motor is stopped. Once the cause of the alarm is cleared, reset the drive using 1 of the
following:
•
Pressing [Reset].
•
Remotely by control terminals.
•
Via serial communication.
Trip lock
An alarm occurred and the motor is stopped. Once the cause of the alarm is cleared, cycle power to the drive. Reset
the drive manually by 1 of the following:
•
Pressing [Reset].
•
Remotely by control terminals.
•
Via serial communication.
8.4 Warnings and Alarms
8.4.1 Warning and Alarm Types
Alarm
An alarm indicates a fault that requires immediate attention. The fault always triggers a trip or trip lock. Reset the drive after an alarm
using 1 of the following methods:
•
Press [Reset]/[Off/Reset].
•
Digital reset input command.
•
Serial communication reset input command.
•
Auto reset.
Warning
A state entered in fault situations, for example if the drive is subject to an overtemperature or when the drive is protecting the motor,
process, or mechanism. The drive prevents a restart until the cause of the fault has disappeared. To cancel the trip state, restart the
drive. Do not use the trip state for personal safety.
Trip
When tripping, the drive suspends operation to prevent damage to the drive and other equipment. When a trip occurs, 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 is
ready for a reset.
Trip lock
The drive enters this state in fault situations to protect itself. The drive requires physical intervention, for example when there is a short
circuit on the output. A trip lock can only be canceled by disconnecting mains, removing the cause of the fault, and reconnecting the
drive. Restart is prevented until the trip state is canceled by activating reset or, sometimes, by being programmed to reset
automatically. Do not use the trip lock state for personal safety.
Maintenance, Diagnostics, and
Troubleshooting
Operating Guide | VLT® AQUA Drive FC 202
AQ275652274277en-000101 / 130R0708| 103
Danfoss A/S © 2020.01
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