Danfoss VLT FC 103 Operating Guide

8.3.4 Status Messages - Operation Status
Table 38: 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.
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.
Freeze out-
put request
A freeze output command has been given, but 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 corre-
sponding terminal is active. The drive saves the actual reference. Changing the reference is now only possible via
terminal functions speed up and speed down.
Maintenance, Diagnostics, and
Troubleshooting
Operating Guide | VLT® Refrigeration Drive FC 103
AQ275652766279en-000101 / 130R0707| 97
Danfoss A/S © 2020.01

Danfoss VLT FC 103 Specifications

General

Brand	Danfoss
Model	VLT FC 103
Category	DC Drives
Language	English