Operating instructions
K3G250-PR17-I5
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,
apply control signal.
Faulty connection
De-energise, correct
connection, see
connection diagram.
Overtemperature of
electronics/motor
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.
Thermal overload
protector responded
Allow motor to cool
off, locate and rectify
cause of error, if
necessary cancel
restart lock-out
Ambient temperature
too high
Reduce the ambient
temperature.
Reset by reducing
control input to 0.
Unacceptable
operating point
Correct the operating
point. Let the device
cool down.
If you have any other problems, contact ebm-papst.
6.1 Vibration test
Checking the fan for mechanical vibrations based on ISO 14694.
Recommendation: every 6 months. Maximum vibration severity is 3.5
mm/s measured at the motor’s fastening diameter on the motor support
plate towards and perpendicular to the motor’s axis of rotation.
Fig. 4: Example showing vibration measurement. Positioning of the
sensors will vary depending on the device and the circumstances of
installation.
6.2 Cleaning
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
6.3 Safety test
NOTE
High-voltage test
The integrated EMC filter contains Y capacitors. Therefore, the
trigger current is exceeded when AC testing voltage is applied.
→ Test the device with DC voltage when you carry out the
high-voltage test required by law. The voltage to be used
corresponds to the peak value of the AC voltage required by
the standard.
What has to
be tested?
How to test?
Frequency
Which
measure?
Check the
protective
casing against
accidental
contact for
damage and to
ensure that it is
intact
Visual inspection At least every
6 months
Repair or
replacement of
the device
Check the
device for
damage to
blades and
housing
Visual inspection At least every
6 months
Replacement of
the device
Mounting the
connection lines
Visual inspection At least every
6 months
Fasten
Check the
insulation of the
wires for damage
Visual inspection At least every
6 months
Replace wires
Item no. 54783-5-9970 · ENG · Revision 202174 · Release 2018-12-28 · Page 11 / 12
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
