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R3G500-AQ33-01
6. MAINTENANCE, MALFUNCTIONS, POSSIBLE
CAUSES AND REMEDIES
Do not perform any repairs on your device. Return the device to ebm-
papst for repair or replacement.
WARNING
Terminals and connections have voltage even with a
unit that is shut off
Electric shock
→ Wait five minutes after disconnecting the voltage at all poles
before opening the device.
CAUTION
If control voltage is applied or a speed setpoint is stored,
the motor will restart automatically, e.g. after a mains
failure.
Risk of injury
→ Keep out of the device hazard zone.
→ When working on the device, switch off the mains power
and ensure that it cannot be switched back on.
→ Wait until the device stops.
→ After working on the device, remove any tools used or
other objects from the device.
NOTE
If the device is not operated for a lengthy period in installed
condition in a dry environment, it is to be started up and
operated at full speed for one hour at least every four months. If
the device is not operated for a lengthy period in installed
condition in a damp environment (e.g. outdoors), it is to be
started up and operated at full speed for at least three hours
once a month to move the bearings and allow any condensate
that may have ingressed to evaporate.
Malfunction/error
Possible cause
Impeller running
Imbalance in rotating
roughly
parts
Motor does not turn
Mechanical blockage
Mains supply voltage
faulty
Faulty connection
Item no. 50813-5-9970 · ENG · Revision 260759 · Release 2022-06-28 · Page 14 / 16
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
Possible remedy
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.
Switch off, de-
energise, and
remove mechanical
blockage.
Check mains supply
voltage,
restore power
supply.
6.1 Vibration test
Important! The error
message resets
Checking the fan for mechanical vibrations based on ISO 14694.
automatically.
Recommendation: every 6 months. Maximum vibration severity is 3.5
The device starts up
mm/s measured at the motor's fastening diameter on the motor support
again automatically
plate towards and perpendicular to the motor's axis of rotation.
without advance
warning.
De-energise, correct
connection, see
connection diagram.
Motor winding broken
Insufficient cooling
Ambient temperature
too high
Unacceptable
operating point (e.g.
counterpressure is
too high)
If you have any other problems, contact ebm-papst.
Replace device
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.
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.
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.
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