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Operating instructions – ebm-papst S3G400-AN04-50 User Manual

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Operating instructions

S3G400-AN04-50

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.

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 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

Impeller running
roughly

Imbalance in rotating
parts

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.

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.

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. Let the
device cool down.

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 water jet or 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?

Check the
protective
casing against
accidental
contact for
damage and to
ensure that it is
intact

Visual inspection At least every

6 months

Repair or
replacement of
the device

Check the
device for
damage to
blades and
housing

Visual inspection At least every

6 months

Replacement
of the device

Mounting the
connection lines

Visual inspection At least every

6 months

Fasten

Mounting of
protective
earth connection

Visual inspection At least every

6 months

Fasten

Item no. 51656-5-9970 · Revision 76115 · Release 2012-12-03 · 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 · [email protected] · www.ebmpapst.com