Danfoss vlt fcd 302 Operating Instructions Manual page 64

Status Indication
AC Brake
AMA finish OK
AMA ready
AMA running
Braking
Braking max.
Coast
Ctrl. Ramp-down Control Ramp-down was selected in
Current High
Current Low
DC Hold
DC Stop
Feedback high
Feedback low
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VLT Decentral Drive FCD 302 Operating Instructions
Operation Status
AC Brake was selected in 2-10 Brake Function.
The AC brake over-magnetizes the motor to
achieve a controlled slow down.
Automatic motor adaptation (AMA) was carried
out successfully.
AMA is ready to start. Press [Hand On] to start.
AMA process is in progress.
The brake chopper is in operation. Generative
energy is absorbed by the brake resistor.
The brake chopper is in operation. The power
limit for the brake resistor defined in 2-12 Brake
Power Limit (kW) is reached.
•
Coast inverse was selected as a function for
a digital input (parameter group 5-1*). The
corresponding terminal is not connected.
•
Coast activated by serial communication
14-10 Mains Failure.
•
The mains voltage is below the value set in
14-11 Mains Voltage at Mains Fault at mains
fault
•
The frequency converter ramps down the
motor using a controlled ramp down
The frequency converter output current is
above the limit set in 4-51 Warning Current
High.
The frequency converter 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*).
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.
MG.04.F2.02 - VLT is a registered Danfoss trademark
Operation Status
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 speed down.
•
Hold ramp is activated via serial communi-
cation.
Freeze output A freeze output command has been given, but
request the motor will remain stopped until a run
permissive signal is received.
Freeze ref. Freeze Reference was chosen as a function for a
digital input (parameter group 5-1*). The
corresponding terminal is active. The frequency
converter saves the actual reference. Changing
the reference is now only possible via terminal
functions speed up and speed down.
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 frequency
converter, 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 frequency converter with
generative energy. The overvoltage control
adjusts the V/Hz ratio to run the motor in
controlled mode and to prevent the frequency
converter from tripping.
PowerUnit Off (For frequency converters with an external 24V
power supply installed only.) Mains supply to
the frequency converter is removed, but the
control card is supplied by the external 24V.
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