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9.1.4 Status Messages - Operation Status
Table 92: Operation Status
Operation
status
Description
AC brake
AC brake was selected in
parameter 2-10 Brake Function
. The AC brake overmagnetizes the motor to achieve a con-
trolled slow down.
AMA finish
OK
Automatic motor adaptation (AMA) was carried out successfully.
AMA ready
AMA is ready to start. To start, press [Hand On].
AMA run-
ning
AMA process is in progress.
Braking
The brake chopper is in operation. The brake resistor absorbs the generative energy.
Braking
max.
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.
Coast
[2] Coast inverse
was selected as a function for a digital input (
parameter group 5–1* Digital Inputs
). The corre-
sponding terminal is not connected.
Coast activated by serial communication.
No output from the drive to the motor.
Ctrl. ramp-
down
[1] Ctrl. ramp-down
was selected in
parameter 14-10 Mains Failure
.
The mains voltage is below the value set in
parameter 14-11 Mains Voltage at Mains Fault
.
The drive ramps down the motor in a controlled manner.
Current
high
The drive output current is above the limit set in
parameter 4-51 Warning Current High
.
Current low
The drive output current is below the limit set in
parameter 4-52 Warning Speed Low
.
DC hold
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
.
DC stop
The motor is held with a DC current (
parameter 2-01 DC Brake Current
) for a specified time (
parameter 2-02 DC Brak-
ing 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 corre-
sponding terminal is not active.
The DC brake is activated via serial communication.
Feedback
high
The sum of all active feedback is above the feedback limit set in
parameter 4-57 Warning Feedback High
.
Feedback
low
The sum of all active feedback is below the feedback limit set in
parameter 4-56 Warning Feedback Low
.
Freeze out-
put
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 corre-
sponding terminal is active. Speed control is only possible via the terminal functions speed up and speed
down.
Hold ramp is activated via serial communication.
AQ357954340588en-000201 / 130R0881 | 119
Danfoss A/S © 2020.09
Maintenance, Diagnostics, and
Troubleshooting
VLT® Refrigeration Drive FC 103
Operating Guide
Summary of Contents for VLT FC 103
Page 2: ......
