Remote
The speed reference is given from external
signals, serial communication, or internal
preset references.
Local
The adjustable frequency drive uses [Hand On]
control or reference values from the LCP.
Table 7.2 Reference Site
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 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*
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 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.
Maintenance, Diagnostics an...
VLT
®
AQUA Drive FC 202
38
Danfoss A/S © 10/2014 All rights reserved.
MG20MA22
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