Danfoss VLT FC 103 Operating Manual page 66

Maintenance, Diagnostics, a...
Remote
Local
Table 8.2 Reference Site
AC brake
AMA finish OK
AMA ready
AMA running
Braking
8 8
Braking max.
Coast
Ctrl. ramp-down [1] Ctrl. ramp-down was selected in
Current high
Current low
DC hold
64
VLT® Refrigeration Drive FC 103
The speed reference is given from
•
External signals.
•
Serial communication.
•
Internal preset references.
The drive uses reference values from the LCP.
AC brake was selected in parameter 2-10 Brake
Function. The AC brake overmagnetizes the
motor to achieve a controlled slowdown.
Automatic motor adaptation (AMA) was
carried out successfully.
AMA is ready to start. To start, press [Hand
On].
AMA process is in progress.
The brake chopper is in operation. The brake
resistor absorbs the generative energy.
The brake chopper is in operation. The power
limit for the brake resistor defined in
parameter 2-12 Brake Power Limit (kW) has
been reached.
•
[2] 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.
parameter 14-10 Mains Failure.
•
The mains voltage is below the value set
in parameter 14-11 Mains Voltage at Mains
Fault at mains fault.
•
The drive ramps down the motor using a
controlled ramp down.
The drive output current is above the limit set
in parameter 4-51 Warning Current High.
The drive output current is below the limit set
in parameter 4-52 Warning Speed Low.
DC hold is selected in parameter 1-80 Function
at Stop and a stop command is active. The
motor is held by a DC current set in
parameter 2-00 DC Hold Current.
Danfoss A/S © 04/2018 All rights reserved.
DC stop The motor is held with a DC current
(parameter 2-01 DC Brake Current) for a
specified time (parameter 2-02 DC Braking
Time).
•
DC brake is activated in parameter 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 parameter 4-57 Warning
Feedback High.
Feedback low The sum of all active feedbacks is below the
feedback limit set in parameter 4-56 Warning
Feedback Low.
Freeze output The remote reference is active, which holds
the present speed.
•
[20] 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 speed down.
•
Hold ramp is activated via serial communi-
cation.
Freeze output A freeze output command has been given, but
request the motor remains stopped until a run
permissive signal is received.
Freeze ref. [19] Freeze Reference was selected as a
function for a digital input (parameter group
5-1* Digital Inputs). The corresponding terminal
is active. The drive 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 is stopped until a run permissive signal
is received via a digital input.
MG16P222