Rosenberg ECFanGrid, Руководство по эксплуатации

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34 BA419BB0721A2
Fault Possible cause Action
Fan rotates at maximum
speed, independent of
the setpoint.
Fan is in closed loop.
Change parameter with “EC-Param” or contact
the Rosenberg support.
Fan does not run at max-
imum speed.
Max. setpoint is not pre-
sent on analog 1. Check setpoint according to pin connection and
increase.
Setpoint on analog 1 is
too high.
Limit setpoint according to pin connection.
Temperature dependent
power derating is acti-
vated.
Control the airflow temperature and ambient tem-
perature for its limits (Nameplate data).
Fan turns but there is no
or not enough airflow.
Rotation speed of the fan
too low. Please see “fan does not run at maximum
speed“.
Air flow interrupted.
Check duct system (e.g. suction, filter, sealing
caps).
Calculated pressure
does not correspond to
the real value.
Check fan selection.
Unfavorable installation
conditions.
Check the installation situation of the fan.
Vibrations / noises in fan.
Chafing of impeller.
Check impeller for dirt and clearance.
Check mounting of Impeller and inlet cone.
Deformation.
Stop fan immediately. Contact Rosenberg sup-
port.
Dirty impeller. Clean impeller.
Damaged ball bearings.
Stop fan immediately. Contact Rosenberg sup-
port.
Wrong Operating point
(only axial-fans). Operating point is in the forbidden area of the air
curve. Reduce pressure losses.
RCD-Switch or fuse trips.
Ground fault or short
circuit. Check if the cables are damaged or moisture is
present.
Defect of the motor
and/or the electronic.
Contact Rosenberg support.