Operating instructions
M1G055-BI19-12
Translation of the original operating instructions
4.5 Checking connections
;
Ensure isolation from supply (all phases).
;
Make sure a restart is impossible
;
Check whether the mating connector is properly engaged with the
built-in connector.
;
Check that the mating connector is correctly attached to the cable.
4.6 Switching on the device
The device may only be switched on if it has been installed properly and
in accordance with its intended use, including the required safety
mechanisms and professional electrical hookup. This also applies for
devices which have already been equipped with plugs and terminals or
similar connectors by the customer.
;
Before switching on, check the device for visible external damage
and make sure the protective devices are functional.
;
Check the fan's air flow paths for foreign matter and remove any
foreign matter found.
;
Apply the nominal supply voltage.
;
Start the device by changing the input signal.
4.7 Switching off the device
;
Disconnect the device from the power supply at the supply line's
main switch.
5. INTEGRATED PROTECTIVE FEATURES
The integrated protective functions cause the motor to switch off
automatically in the event of the faults described in the table.
Fault
Safety feature description/
function
Rotor position detection error
An automatic restart follows.
Blocked rotor
;
After the blockage is
removed, the motor restarts
automatically.
Motor overload
After cooling off, the device
restarts automatically.
6. MAINTENANCE, MALFUNCTIONS, POSSIBLE
CAUSES AND REMEDIES
Do not perform any repairs on your device. Send the device to ebm-
papst for repair or replacement.
WARNING
Live terminals and connections even with device
switched off
Electric shock
→ Wait five minutes after disconnecting the voltage at all poles
before opening the device.
CAUTION
The motor restarts automatically when operating voltage
is applied, e.g. after a power failure.
Risk of injury
→ Keep out of the motor's danger zone.
→ When working on the motor, switch off the line voltage
and ensure that it cannot be switched back on.
→ Wait until the motor comes to a stop.
CAUTION
If control voltage or a stored speed set value is applied,
the motor will restart automatically, e.g. after a power
failure.
Risk of injury
→ Keep out of the device’s danger zone.# When working on
the device, switch off the line voltage and ensure that it
cannot be switched back on.
→ Wait until the device comes to a stop.
→ After working on the device, remove any tools or other
objects from the device.
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
Possible remedy
Rotor not running
smoothly
Imbalance in rotating
parts
Clean the device;
replace it if imbalance
persists after cleaning
Motor not turning
Mechanical blockage
Switch off, isolate
from supply and
remove mechanical
blockage.
Item no. 55927-5-9970 · ENU · Change 94089 · Approved 2017-08-15 · Page 9 / 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
