Vibration Testing; Cleaning - ebm-papst R3G280-AF42-62 Operating Instructions Manual

R3G280-AF42-62
Impeller not
running smoothly
Motor not turning
Motor/electronics
overtemperature
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.
Item no. 51834-5-9970 · ENU · Change 273261 · Approved 2022-11-21 · 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 · info1@de.ebmpapst.com · www.ebmpapst.com
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Operating instructions
Imbalance in rotating Clean the device;
parts replace it if imbalance
persists after cleaning.
Make sure no
weight clips are
removed during

cleaning.

Mechanical blockage Switch off, isolate
from supply and
remove mechanical
blockage.
Line voltage faulty Check line voltage,
restore power
supply, apply control
signal.
Faulty connection Isolate from supply,
correct connection;
see connection
diagram.
Deficient cooling Improve cooling. Let
the device cool down.
To reset the error
message, switch off
the line voltage for at
least 25 s and then
switch it on again.
Thermal overload Allow motor to cool
protector activated off, locate and rectify
cause of error,
release restart lockout
if necessary
Ambient temperature Reduce the ambient
too high temperature.
Reset by reducing
control input to 0.
Impermissible point of Correct the operating
operation point. Let the device
cool down.
Fig. 1: Example illustrating vibration measurement. The arrangement of
the sensors depends on the device concerned and the installation
situation.
6.2 Cleaning
To ensure a long service life, check the fans regularly for proper
operation and soiling. The frequency of checking is to be adapted
accordingly depending on the degree 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 can cause overheating of the motor.
; Soiling of the impeller can cause vibration that will shorten the service
life of the fan.
; Severe vibration can destroy the fan.
; In such cases, switch off the fan immediately and clean it.
; The preferred method of cleaning is dry cleaning, e.g. using
compressed air.
; Do not use aggressive cleaning agents!
NOTE
Damage to the device during cleaning
Malfunction possible
→ Do not clean the device using a water jet or high-pressure
cleaner.
→ Do not use any acid, alkali or solvent-basedcleaning
agents.
→ Do not use any pointed or sharp-edged objects for cleaning
; Completely remove any cleaning agents used.
; If severe corrosion is visible on load-bearing or rotating parts, switch
off the device immediately and replace it.
; Repair of load-bearing or rotating parts is not permitted!
; Operate the fan for 2 hours at maximum speed so that any water that
has ingressed can evaporate.
; If cleaning does not eliminate vibrations, the fan may need to be
rebalanced. To have it rebalanced, contact ebm-papst.
; The fan is equipped with maintenance-free ball bearings. The lifetime
lubrication of the ball bearings is designed for a service life of 40,000
hours.