8
7.5.1
External fuses for EBN861
Apart from the internal fuses (see also 7.5), the EBN861 power electronic unit requires two additional
external fuses, which are supplied separately to the unit.
Fig. 5:
External fuses
8.
Mounting
Install the electronics close to the actuator. The connection is made via a 24-pin connector (additional
10-pin connector if heater is used) on the actuator side and screw terminals on the electronics side. The
electronics are provided with the appropriate metric cable holes (see Figures 1 to 3 for the assignment).
8.1
Preparing the electronics
-
Make sure that disconnection on site is possible.
-
Shield all signal cables and the motor cable between the actuator and the electronics
-
The shield of the connection cable between the electronics and the actuator must be applied to both
housings.
8.2
Mounting of EAN823 / EBN853
Disconnect the electronics and the actuator prior to all installation and service works.
-
Fasten the unit to the vertical mounting plate, using screws of property class 8.8 (tensile strength
800 N/mm
2
; yield strength 640 N/mm
2
)
-
Make sure that there is enough spacing for mounting, and that the unit can be easily accessed
-
Make sure that the cable holes are oriented to the left
-
Remove the cover of the connection chamber (2)
-
Insert the cables through the cable glands and connect them according to the wiring diagram.
-
Use appropriate cable glands to ensure a water-tight installation
-
Check if the cable is connected properly; then close the connection chamber cover.
Adjust as described in section 9.
8.3
Mounting of EBN861
Electronics unit EBN861 has a total weight of around 42 kg. For safety reasons it may be necessary to
mount each of the two parts separately.
-
Undo and remove the cover screws.
-
Fold down the front part, then lift it off from the hinge bolts towards the top.
-
Undo the internal connection between the two housing parts.
-
Undo the hinge screw
-
First mount the rear part of the housing
-
Attach the front housing part to the hinge bolts, insert a screw into the top bolt and fasten.
-
Make the internal connections between the two housing parts.
-
Close the cover and fasten the cover screws
-
Connect the cables
Fig. 6:
External fuse; 35 A
Fig. 7:
External thermal fuse; 16 A
L
AC 230 V 1~
16 A (
ϑ
)
35 A
N
PE
Electronic
unit
