AC Brake
AC Brake
was selected in
2-10 Brake Function
.
The AC brake overmagnetizes the motor to
achieve a controlled slow-down.
AMA finish OK
Automatic motor adaptation (AMA) was
carried out successfully.
AMA ready
AMA is ready to start. Press [Hand On] to start.
AMA running
AMA process is in progress.
Braking
The brake chopper is in operation. Generative
energy is absorbed by the brake resistor.
Braking max.
The brake chopper is in operation. The power
limit for the brake resistor defined in
2-12 Brake Power Limit (kW)
has been reached.
Coast
•
Coast inverse
was selected as a function for
a digital input (parameter group
5-1*
Digital Inputs
). The corresponding terminal
is not connected.
•
Coast activated by serial communication.
Ctrl. ramp-down
[1] 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
[1] 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
).
•
The
DC Brake
cut-in speed is reached 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.
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 (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.
Freeze output
request
A freeze output command was given but the
motor remains stopped until a run permissive
signal is received.
Freeze ref.
Freeze Reference
was selected 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
.
Jog request
A jog command was given but the motor
remains 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 a 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.
Motor check
In
1-80 Function at Stop
,
[2] 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.
Over-voltage
Control (OVC)
Over-voltage control was activated in
2-17 Over-voltage Control
,
[2] Enabled
. The
connected motor supplies the adjustable
frequency drive with generative energy. Over-
voltage control adjusts the V/Hz ratio to run
the motor in controlled mode and to prevent
the adjustable frequency drive from tripping.
Maintenance, Diagnostics an...
Instruction Manual
MG33AP22
Danfoss A/S © Rev. 09/2014 All rights reserved.
39
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7
Содержание VLT AutomationDrive FC 301
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