Operating instructions
K3G560-AP23-90
`
II 2G Ex db eb ib IIB T3 Gb
IBExU14ATEX1122 X /04
`
Translation of the original operating instructions
54006-4-8670
5.6 Checking connections
;
Ensure isolation from supply (all phases).
;
Make sure a restart is impossible
;
Check the cables for proper fit.
;
Route the cables in the terminal box so that the terminal box cover
closes without resistance. The strands must not be trapped between
the terminal box cover and housing.
;
Screw the terminal box cover back on again. Terminal box tightening
torques, see Chapter 4.1 Product drawing.
;
Use all screw plugs. Insert the screws by hand to avoid damage to
the threads.
;
Make sure the terminal box is completely closed and sealed and that
all screws and cable glands have been properly tightened.
;
The supply lines to the add-on unit, e.g. exchanger, must conform to
the IP protection class (see nameplate). Do not route the cables over
any sharp-edged objects.
5.7 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.
NOTE
Damage to the device from vibration
Bearing damage, shorter service life
→ Low-vibration operation of the fan must be ensured over the
entire speed control range. #Severe vibration can arise for
instance from inexpert handling, transportation damage and
resultant imbalance or be caused by component or structural
resonance. #Speed ranges with excessively high vibration
levels and possibly resonant frequencies must be
determined in the course of fan commissioning. #Either run
through the resonant range as quickly as possible with
speed control or find another remedy.# Operation with
excessively high vibration levels can lead to premature
failure.
5.8 Switching off the device
5.8.1 Switch off device during operation
;
Switch off the device via the control input.
;
Do not switch the motor (e.g. in cyclic operation) on and off via power
supply.
5.8.2 Switching off the device for maintenance
;
Switch off the device via the control input.
;
Disconnect the device from the power supply.
If the device (terminal box cover) has to be opened and disconnected
from the supply line, note the following:
DANGER
Electrical charge (>50 µC, 60 µJ) between phase
conductor and protective earth connection after
switching off supply.
Electric shock, risk of injury
→ Attention! The terminal box cover may not be opened
within a potentially explosive area before the wires
(L1, L2, L3) and PE have been short-circuited outside
the potentially explosive area (e.g. at the main switch).
;
Disconnect the cable at the device.
;
When disconnecting, be sure to disconnect the ground connection last.
6. 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
No automatic restart follows.
Blocked rotor
;
After the blockage is
removed, the motor restarts
automatically.
Line undervoltage (line voltage
outside of permitted nominal
voltage range)
;
If the line voltage returns to
permitted values, the motor
restarts automatically.
Phase failure
A phase of the supply voltage
fails for at least 5 s.
;
When all phases are
correctly supplied again, the
motor automatically restarts after
10-40 s.
Overtemperature of motor,
electronics interior and power
electronics
No automatic restart. Reset the
device manually.
Item no. 54006-5-9970 · ENU · Change 93219 · Approved 2018-02-08 · Page 14 / 16
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