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K3G250-RR01-H2
Line voltage faulty
Faulty connection
Motor/electronics
Deficient cooling
overtemperature
Thermal overload
protector activated
Ambient temperature
too high
Impermissible point of
operation
In the event of further malfunctions, contact ebm-papst.
6.1 Vibration testing
Checking of fan for mechanical vibration based on ISO 14694.
Recommendation: Every 6 months. Max. vibration severity is 3.5 mm/
s, measured at the motor fastening diameter on the motor support plate in
the direction of the motor axis of rotation and perpendicular to this.
Fig. 1: Example illustrating vibration measurement. The arrangement of
the sensors depends on the device concerned and the installation
situation.
Item no. 52817-5-9970 · ENU · Change 211092 · Approved 2020-05-20 · Page 10 / 11
ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone +49 (0) 7938 81-0 · Fax +49 (0) 7938 81-110 · info1@de.ebmpapst.com · www.ebmpapst.com
Operating instructions
Check line voltage,
6.2 Cleaning
restore power
To ensure a long service life, check the fans regularly for proper
supply, apply control
operation and soiling. The frequency of checking is to be adapted
signal.
accordingly depending on the degree of soiling.
Isolate from supply,
correct connection;
see connection
diagram.
Improve cooling. Let
the device cool down.
To reset the error
; Dirt deposits on the motor housing can cause overheating of the motor.
message, switch off
; Soiling of the impeller can cause vibration that will shorten the service
the line voltage for at
least 25 s and then
; Severe vibration can destroy the fan.
switch it on again.
Allow motor to cool
; In such cases, switch off the fan immediately and clean it.
off, locate and rectify
; The preferred method of cleaning is dry cleaning, e.g. using
cause of error,
release restart lockout
; Do not use aggressive cleaning agents!
if necessary
Reduce the ambient
temperature.
Reset by reducing
control input to 0.
Correct the operating
point. Let the device
cool down.
; Completely remove any cleaning agents used.
; If severe corrosion is visible on load-bearing or rotating parts, switch
; Repair of load-bearing or rotating parts is not permitted!
; Operate the fan for 2 hours at maximum speed so that any water that
; If cleaning does not eliminate vibrations, the fan may need to be
; The fan is equipped with maintenance-free ball bearings. The lifetime
; If bearing replacement is necessary after that period, contact ebm-
; Adapt the maintenance intervals to the actual level of dust exposure.
6.3 Safety inspection
What to check
Contact
protection
cover for
intactness or
damage
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.
life of the fan.
compressed air.
NOTE
Damage to the device during cleaning
Malfunction possible
→ Do not clean the device using a high-pressure cleaner.# Do
not use acid, alkali or solvent-based cleaning agents.
→ Do not use any pointed or sharp-edged objects for
cleaning.
off the device immediately and replace it.
has ingressed can evaporate.
rebalanced. To have it rebalanced, contact ebm-papst.
lubrication of the ball bearings is designed for a service life of 40,000
hours.
papst.
NOTE
High-voltage test
The integrated EMC filter has Y capacitors. The tripping current
is exceeded when AC testing voltage is applied.
→ Test the device with DC voltage when you perform the
legally required high-voltage test. The voltage to be used
corresponds to the peak value of the AC voltage required by
the standard.
How to check
How often
Visual inspection At least every
6 months
What action?
Repair or
replacement of
device
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