Danfoss VLT AutomationDrive FC 303 User Manual

Operation status
Ctrl. Ramp-down Control Ramp-down was selected in
14-10 Mains Failure.
•
The AC line voltage is below the value set
in 14-11 Mains Voltage at Mains Fault at
line power fault
•
The adjustable frequency drive ramps
down the motor using a controlled ramp-
down.
Current High The adjustable frequency drive output current
is above the limit set in 4-51 Warning Current
High.
Current Low The adjustable frequency drive output current
is below the limit set in 4-52 Warning Speed
Low
DC Hold
DC hold is selected in 1-80 Function at Stop
and a stop command is active. The motor is
held by a DC current set in 2-00 DC Hold/
Preheat Current.
DC Stop
The motor is held with a DC current (2-01 DC
Brake Current) for a specified time (2-02 DC
Braking Time).
•
DC Brake is activated in 2-03 DC Brake Cut-
in Speed [RPM] and a Stop command is
active.
•
DC Brake (inverse) is selected as a function
for a digital input (parameter group 5-1*).
The corresponding terminal is not active.
•
The DC Brake is activated via serial
communication.
Feedback high The sum of all active feedbacks is above the
feedback limit set in 4-57 Warning Feedback
High.
Feedback low The sum of all active feedbacks is below the
feedback limit set in 4-56 Warning Feedback
Low.
Freeze output The remote reference is active which holds
the present speed.
•
Freeze output was selected as a function
for a digital input (Group 5-1*). The
corresponding terminal is active. Speed
control is only possible via the terminal
functions speed up and slow.
•
Hold ramp is activated via serial communi-
cation.
Freeze output
request
A freeze output command has been given,
but the motor will remain stopped until a run
permissive signal is received.
Operation status
Freeze ref. Freeze Reference was chosen as a function for
a digital input (parameter group 5-1*). The
corresponding terminal is active. The
adjustable frequency drive saves the actual
reference. Changing the reference is now only
possible via terminal functions speed up and
slow.
Jog request A jog command has been given, but the
motor will be stopped until a run permissive
signal is received via a digital input.
Jogging The motor is running as programmed in
3-19 Jog Speed [RPM].
•
Jog was selected as function for a digital
input (parameter group 5-1*). The
corresponding terminal (e.g., Terminal 29)
is active.
•
The Jog function is activated via the serial
communication.
•
The Jog function was selected as a
reaction for a monitoring function (e.g., No
signal). The monitoring function is active.
Motor check
In 1-80 Function at Stop, Motor Check was
selected. A stop command is active. To ensure
that a motor is connected to the adjustable
frequency drive, a permanent test current is
applied to the motor.
OVC control
Overvoltage control was activated in 2-17 Over-
voltage Control. The connected motor is
supplying the adjustable frequency drive with
generative energy. The overvoltage control
adjusts the V/Hz ratio to run the motor in
controlled mode and to prevent the
adjustable frequency drive from tripping.
PowerUnit Off (For adjustable frequency drives with an
external 24V power supply installed only.) Line
power supply to the adjustable frequency
drive is removed, but the control card is
supplied by the external 24V.
Protection md Protection mode is active. The unit has
detected a critical status (an overcurrent or
overvoltage).
•
To avoid tripping, switching frequency is
reduced to 4kHz.
•
If possible, protection mode ends after
approximately 10sec.
•
Protection mode can be restricted in
14-26 Trip Delay at Inverter Fault
Status Messages
VLT
®
AutomationDrive Instruction
Manual
7-2 MG.33.AI.22 - VLT
®
is a registered Danfoss trademark
77

Danfoss VLT AutomationDrive FC 303 Specifications

General

Brand	Danfoss
Model	VLT AutomationDrive FC 303
Category	DC Drives
Language	English