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M3G112-GA32-51
If the device is out of use for some time, e.g. when in storage,
we recommend switching it on for at least two hours to allow
any condensation to evaporate and to move the bearings.
Malfunction/fault
Possible cause
Rotor not running
Imbalance in rotating
smoothly
parts
Motor not turning
Mechanical blockage
Line voltage faulty
Faulty connection
Broken motor winding Replace device
Thermal overload
protector activated
Deficient cooling
Ambient temperature
too high
Item no. 50782-5-9970 · ENU · Change 94899 · Approved 2018-03-02 · 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
Possible remedy
Clean the device;
replace it if imbalance
persists after cleaning
Switch off, isolate
from supply and
remove mechanical
blockage.
Check line voltage,
restore power supply.
Attention! The error
message resets
automatically.
Device restarts
automatically without
6.1 Cleaning
warning.
Isolate from supply,
correct connection;
see connection
diagram.
Allow motor to cool
off, locate and rectify
cause of error,
6.2 Safety inspection
release restart lockout
if necessary
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.
Alternatively, reset
the error message by
What to check
applying a control
Device for
signal of < 0.5 V to
damage
Din1 or by shorting
Fastening the
Din1 to GND.
cables
Reduce the ambient
Insulation of
temperature. Let the
cables for
device cool down.
damage
To reset the error
Condensation
message, switch off
drainage holes
the line voltage for at
for clogging,
least 25 s and then
where necessary
switch it on again.
Abnormal
Alternatively, reset
bearing noise
the error message by
applying a control
signal of < 0.5 V to
Din1 or by shorting
Din1 to GND.
Impermissible point of
operation (e.g. back
pressure too high)
In the event of further malfunctions, contact ebm-papst.
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
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
Visual inspection At least every
6 months
Visual inspection At least every
6 months
Visual inspection At least every
6 months
acoustic
At least every
6 months
Correct the operating
point. 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.
Alternatively, reset
the error message by
applying a control
signal of < 0.5 V to
Din1 or by shorting
Din1 to GND.
What action?
Replace device
Fasten
Replace cables
Open holes
Replace device
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