Operating instructions
A6D910-AA01-01
Translation of the original operating instructions
4.5 Open additional screwed cable glands
You have the ability to break a second cable gland opening through on
the terminal box.
WARNING
In event of a fault, the screwed cable gland is under
electrical voltage
Electric shock
→ Do not use metal cable glands for plastic terminal
boxes.
;
Screw the cable gland into the pre-cut thread using a screwdriver.
When doing so, note the tightening torques, see chapter 3.1 Product
drawing.
;
Remove the plastic tab that falls off when the wire is pressed through
into the terminal box.
Fig. 4: Screwed cable gland opening
NOTE
Tightness and strain relief depend on the cable used.
→ The user must check this.
4.6 Checking the connections
;
Make sure that the power is off (all phases).
;
Secure it from being switched on again.
;
Check the correct fit of the connection lines.
;
Screw the terminal box cover closed again. Terminal box tightening
torque, see chapter 3.1 Product drawing.
;
Make sure that the terminal box is correctly closed and sealed and
that all screws and screwed cable glands are properly tightened.
4.7 Switch on device
The device is not to be switched on until it has been installed properly
and in accordance with its intended use, including the required protective
devices and professional electrical connection. This also applies to
devices which have already been equipped with plugs and terminals or
similar connectors by the customer.
WARNING
Hot motor housing
Fire hazard
→ Ensure that no combustible or flammable materials are
located close to the fan.
;
Inspect the device for visible external damage and the proper function
of the protective features before switching it on.
;
Check the air flow paths of the fan for foreign objects and remove any
that are found.
;
Apply the nominal voltage to the voltage supply.
NOTE
Damage to device by vibrations
Bearing damage, reduced service life
→ The fan must operate free of vibrations throughout its speed
control range.
→ Strong vibrations can result from improper handling,
imbalance resulting from damage during transport, or
component-induced or structural resonances.
→ When putting the fan into service, determine the speed
ranges with excessive vibration levels and also any
resonance frequencies that may be present.
→ When regulating the speed, pass through resonance
ranges as quickly as possible or find another remedy.
→ Operation at excessive vibration levels can lead to
premature failure.
4.8 Switching off the device
;
Disconnect the device from the supply voltage at the main switch for
the supply line.
;
When disconnecting, be sure to disconnect the earth wire connection
last.
5. 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
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 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.
→ Insert the brought-out thermal overload protector into the
control circuit so that the cooled off motor does not switch on
independently after a fault.
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 two hours once
a month to move the bearings and allow any condensate that
may have ingressed to evaporate.
Malfunction/error
Possible cause
Possible remedy
Item no. 10756-5-9970 · ENG · Revision 232542 · Release 2021-06-22 · Page 10 / 12
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