ebm-papst M3G112-GA52-71 - Manual (Page 10)

Operating instructions M3G112-GA52-71
Translation of the original operating instructions
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.
CAUTION
The motor restarts automatically when operating voltage
is applied, e.g. after a power failure.
Danger of injury
→ Keep out of the danger zone of the motor.
→ When working on the motor, switch off the mains supply
voltage and secure the latter from being switched on again.
→ Wait until the motor stops.
CAUTION
If control voltage is applied or a speed setpoint is stored,
the motor automatically restarts, e.g. after a power failure.
Danger of injury
→ Keep out of the danger zone of the device.
→ When working on the device, switch off the mains
supply voltage and secure the latter from being switched on
again.
→ Wait until the device stops.
→ After working on the device, remove any used tools or
other objects from the device.
If the device remains out of use for some time, e.g. when in
storage, we recommend switching the device on for at least
two hours to allow any condensate to evaporate and to move
the bearings.
Malfunction/error Possible cause Possible remedy
Rotor running
roughly Imbalance in rotating
parts Clean the device, if
imbalance still
evident after
cleaning, replace
device
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.
Thermal overload
protector responded Allow motor to cool
off, locate and rectify
cause of error, if
necessary cancel
restart lock-out
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.
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 Cleaning
NOTE
Damage to the device during cleaning.
Malfunction possible
→ Do not clean the device using a high-pressure washer.
→ Do not use any cleaners containing acids, bases or
solvents.
→ Do not use any pointed or sharp-edged objects to clean.
6.2 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?
Device for
damage Visual inspection At least every
6 months
Replace 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
Condensate
discharge
holes for
clogging, as
necessary Visual inspection At least every
6 months
Open bore holes
Item no. 50842-5-9970 · Revision 79220 · Release 2013-01-16 · Page 10 / 10
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