Operating instructions
A3G990-AZ02-01
Translation of the original operating instructions
Impeller running
roughly
Imbalance in rotating
parts
Clean the device; if
imbalance is still
evident after cleaning,
replace the device.
If you have
attached any weight
clips during cleaning,
make sure to remove
them afterwards.
Motor does not turn
Mechanical blockage
Switch off, de-
energise, and
remove mechanical
blockage.
Mains supply voltage
faulty
Check mains supply
voltage,
restore power
supply.
Important! The error
message resets
automatically.
The device starts up
again automatically
without advance
warning.
Faulty connection
De-energise, correct
connection, see
connection diagram.
Motor winding broken Replace device
Insufficient cooling
Improve cooling. Let
the device cool down.
To reset the error
message, switch off
the mains supply
voltage for a min. of
25 s and switch it on
again.
Alternatively, reset
the error message by
applying a control
signal of <0.5 V to
DIN1 or by short
circuiting Din1 to
GND.
Ambient temperature
too high
Reduce the ambient
temperature. Let the
device cool down.
To reset the error
message, switch off
the mains supply
voltage for a min. of
25 s and switch it on
again.
Alternatively, reset
the error message by
applying a control
signal of <0.5 V to
DIN1 or by short
circuiting Din1 to
GND.
Unacceptable
operating point (e.g.
counterpressure is
too high)
Correct the operating
point. Let the device
cool down.
To reset the error
message, switch off
the mains supply
voltage for a min. of
25 s and switch it on
again.
Alternatively, reset
the error message by
applying a control
signal of <0.5 V to
DIN1 or by short
circuiting Din1 to
GND.
If you have any other problems, contact ebm-papst.
6.1 Cleaning
To ensure a long service life, the fans have to be regularly checked for
proper operation and degree of soiling. The frequency of the checks is to
be adapted to the occurrence of soiling.
DANGER
Risk of injury from rotating fan.
→ Only clean when not in motion. Do not disconnect the fan
from the power supply, just switch it off via the control input.
This will prevent start-up of the fan.
;
Dirt deposits on the motor housing could lead to overheating of the
motor.
;
Dirt on the impeller can cause vibration which would shorten the
service life of the fan.
;
Severe vibration could destroy the fan.
;
In such cases immediately switch off and clean the fan.
;
The preferred method of cleaning is dry cleaning, e.g. using
compressed air.
;
Use is never to be made of corrosive cleaning agents!
NOTE
Damage to the device during cleaning
Malfunction possible
→ Do not use a high-pressure cleaner to clean the device.# Do
not use any acid, alkali or solvent-based cleaning agents.
→ Do not use any pointed or sharp-edged objects for cleaning
;
Completely remove any cleaning agents used.
;
Immediately switch off and replace the device if severe corrosion is
apparent at load-bearing or rotating parts.
;
Repairs to load-bearing or rotating parts are not permissible!
;
Operate the fan for 2 hours at maximum speed to permit the
evaporation of any water which may have ingressed.
;
If cleaning does not eliminate vibration, the fan may have to be re-
balanced. In such cases please contact ebm-papst.
;
The fan is provided with maintenance-free ball bearings. The lifetime
lubrication of the ball bearings is designed for a service life of 40,000
hours.
Item no. 50192-5-9970 · ENG · Revision 209539 · Release 2021-03-15 · Page 13 / 14
ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone +49 (0) 7938 81-0 · Fax +49 (0) 7938 81-110 · [email protected] · www.ebmpapst.com