Warning And Alarm Types - Danfoss VLT AutomationDrive FC 301 Instruction Manual

Diagnostics and Troubleshoo...
QStop The motor is decelerating using 3-81 Quick
Stop Ramp Time.
•
Quick stop inverse was chosen as a function
for a digital input (parameter group 5-1*
Digital Inputs). The corresponding terminal
is not active.
•
The quick stop function was activated via
serial communication.
Ramping The motor is accelerating/decelerating using
the active Ramp-Up/Down. The reference, a
limit value, or a standstill is not yet reached.
Ref. high The sum of all active references is above the
reference limit set in 4-55 Warning Reference
High.
Ref. low The sum of all active references is below the
reference limit set in 4-54 Warning Reference
Low.
Run on ref. The adjustable frequency drive is running in
the reference range. The feedback value
matches the setpoint value.
Run request A start command was given, but the motor
remains stopped until a run permissive signal
is received via digital input.
Running The motor is driven by the adjustable
frequency drive.
Sleep Mode The energy-saving function is enabled. The
motor has stopped but restarts automatically
when required.
Speed high Motor speed is above the value set in
4-53 Warning Speed High.
Speed low Motor speed is below the value set in
4-52 Warning Speed Low.
Standby In Auto On mode, the adjustable frequency
drive starts the motor with a start signal from
a digital input or serial communication.
Start delay In 1-71 Start Delay, a delay starting time was
set. A start command is activated and the
motor starts after the start delay time expires.
Start fwd/rev Start forward and start reverse were selected
as functions for two different digital inputs
(parameter group 5-1* Digital Inputs). The
motor starts in forward or reverse depending
on which corresponding terminal is activated.
Stop The adjustable frequency drive has received a
stop command from the LCP, digital input, or
serial communication.
Trip An alarm occurred and the motor is stopped.
Once the cause of the alarm is cleared, the
adjustable frequency drive can be reset
manually by pressing [Reset] or remotely by
control terminals or serial communication.
MG33AN22
Instruction Manual
Trip lock
Table 7.4 Operation Status
NOTICE!
In auto/remote mode, the adjustable frequency drive
requires external commands to execute functions.

7.3 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 adjustable frequency drive issuing an
alarm. A warning clears by itself when the abnormal
condition is removed.
Alarms
Trip
An alarm is issued when the adjustable frequency drive is
tripped, which means that the adjustable frequency drive
suspends operation to prevent adjustable frequency drive
or system damage. The motor coasts to a stop. The
adjustable frequency drive logic continues to operate and
monitor the adjustable frequency drive status. After the
fault condition is remedied, the adjustable frequency drive
can be reset. It is then ready to start operation again.
Resetting the adjustable frequency drive after trip/trip
lock
A trip can be reset in any of four ways:
•
•
•
•
Trip lock
Input power is cycled. The motor coasts to a stop. The
adjustable frequency drive continues to monitor the
adjustable frequency drive status. Remove input power to
the adjustable frequency drive, correct the cause of the
fault, and reset the adjustable frequency drive.
Danfoss A/S © Rev. 2014-02-10 All rights reserved.
An alarm occurred and the motor is stopped.
Once the cause of the alarm is cleared, power
must be cycled to the adjustable frequency
drive. The adjustable frequency drive can then
be reset manually by pressing [Reset] or
remotely by control terminals or serial
communication.
Press [Reset] on the LCP
Digital reset input command
Serial communication reset input command
Auto reset
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