Danfoss VLT AutomationDrive FC 300 Instruction Manual page 66

Status Messages
Ctrl. Ramp-down Control Ramp-down was selected in
Current High
Current Low
DC Hold
7 7
DC Stop
Feedback high
Feedback low
Freeze output
Freeze output
request
7-2
VLT
Instruction Manual
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.
The adjustable frequency drive output current
is above the limit set in 4-51 Warning Current
High.
The adjustable frequency drive output current
is below the limit set in 4-52 Warning Speed
Low
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.
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*
Digital Inputs). The corresponding terminal
is not active.
•
The DC Brake is activated via serial
communication
The sum of all active feedbacks is above the
feedback limit set in 4-57 Warning Feedback
High.
The sum of all active feedbacks is below the
feedback limit set in 4-56 Warning Feedback
Low.
The remote reference is active, which holds
the present speed.
•
Freeze output was selected as a function
for a digital input (parameter group 5-1*
Digital Inputs). 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
A freeze output command has been given,
but the motor will remain stopped until a run
permissive signal is received.
MG34U222 - VLT
®
Automation Drive D-Frame
Freeze ref.
Jog request
Jogging
Motor check
OVC control
PowerUnit Off
Protection md
®
is a registered Danfoss trademark
Freeze Reference was chosen as a function for
a digital input (parameter group 5-1* Digital
Inputs). 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.
A jog command has been given, but the
motor will be stopped until a run permissive
signal is received via a digital input.
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* Digital Inputs).
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
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.
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.
(For adjustable frequency drives with an
external 24 V power supply installed only).
Line power supply to the adjustable frequency
drive is removed, but the control card is
supplied by the external 24 V.
Protection mode is active. The unit has
detected a critical status (an overcurrent or
overvoltage).
•
To avoid tripping, switching frequency is
reduced to 4 kHz
•
If possible, Protection mode ends after
approximately 10 s
•
Protection mode can be restricted in
14-26 Trip Delay at Inverter Fault