9.3.2 Status Messages - Operating Mode
Table 92: Operating Mode
The drive requires external commands to execute functions. The start/stop commands are sent via the control
terminals and/or the serial communication.
The navigation keys on the LCP can be used to control the drive. Stop commands, reset, reversing, DC brake,
and other signals applied to the control terminals override local control.
The drive does not react to any control signal until [Auto On] or [Hand On] is pressed.
9.3.3 Status Messages - Reference Site
Table 93: Reference Site
The speed reference is given from:
External signals.
Serial communication.
Internal preset references.
The drive uses reference values from the LCP.
9.3.4 Status Messages - Operation Status
Table 94: Operation Status
AC brake was selected in parameter 2-10 Brake Function. The AC brake overmagnetizes the motor to achieve a
controlled slow down.
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 corre-
sponding terminal is not connected.
Coast activated by serial communication.
No output from the drive to the motor.
[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.
AQ262141314214en-000301 / 130R0880132 | Danfoss A/S © 2021.11
Maintenance, Diagnostics, and
Troubleshooting
VLT® HVAC Drive FC 102
Operating Guide
To Next Page
Loading...
Need help?
General