22
The blower does not respond to
pressing the "↓" and "↑" buttons
on the operator´s panel
"Remote" is chosen on the
operator´s panel.
Operator
has not access to oper-
ate the blower
Login as
Tech
or
Admin
and set to "Lo-
cal" (if needed).
Login as
Tech
or
Admin
and set correct
access for
Operator
(if needed)
No data is shown in the
operator´s panel
Missing connection between the
AC drive and the panel (via the
Profinet connection). "USS com
fault" is diplayed in the menu
Sta-
tus
.
AC drive defect.
Missing power supply to the
operator´s panel
Reconnect or replace the Ethernet cable.
Check if they are light in the AC drive's
display. Replace the AC drive.
Restore the 24VDC connection
The blower stops unexpected
The blowers motor is overheated,
and has been switched off by the
PTC sensor in the motor
The motor should be allowed to cool
down, and the course for overheating
examined
Erratic adjustment of blowers
performance
Pressure- or flow control trans
-
mitter is not correctly installed in
piping, and / or not correctly con-
nected to the blower.
The blowers AC drive has reached
max. permissible temperature, and
"Inverter overtemperature" is dis-
played in the menu
Status
Check that the pressure- or flow control
transmitter is correctly installed in the
pipeline (airflow in arrows direction) and
properly connected to the blower electri-
cally.
Clean the air filter in the intake panel.
Check the cooling fans on the AC drive.
If possible, reduce ambient temperature.
If possible, reduce the need for capacity
Poor performance of the blower The blowers AC drive has reached
max. permissible temperature, and
"Inverter overtemperature" is dis-
played in the menu
Status
Clean the air filter in the intake panel.
Check the cooling fans on the AC drive.
If possible, reduce ambient temperature.
If possible, reduce the need for capacity
Blower cannot reach desired
setpoint and "Unable to reach
setpoint" is displayed on the
operator panel
The blowers performance is too low
for the system and setpoint
Adjust the setpoint down to max. achiev-
able performance.
Customize the system so that the blower
can provide the required performance.
Choose a blower with higher performance
In case of doubt, contact a qualified service technician or Kongskilde service department.
