Electrical Connection - ABB EBN853 Instruction

8.2.1 EBN861
Electronic 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
9.

Electrical connection

Each actuator requires a Contrac electronic unit which is loaded with the type specific-software. Care-
fully consider the instructions for the electronic unit and compare the data labels of the actuator and
the electronic unit in order to ensure a proper hard- and software assignment.
The cable between the actuator and the electronic unit is connected to terminals. Consider the follow-
ing issues:
- Consider the local regulation concerning the setup of electrical devices within hazardous areas. This
applies particularly to EN 60079-14 for the setup of the screen and the potential compensation be-
tween the actuator, the electronic unit and the motor protection unit (refer 1) to fig. 8 and 9).
- For the connection of the motor and the position transmitter only use ATEX certified EEx e cable
glands with IP66 acc. to EN 50019.
- Use a cable socket or a solid wire, bended to a „U", to connect the motor cable.
- Ensure a proper strain relief for all cable connections.
- Protect all cables in the connections chambers against contact with metal components. Ensure a
gap of at least 6 mm between all conductive components.
- Remove the desiccant in motor and position sensor.
- Do not change the factory-set position of the motor terminal chamber.
- Seal all not used cable entries with ATEX certified IP66 plugs.
- Use a certified cut-off unit for the thermal motor monitoring. Permitted units are e. g.:
type 3RN1, ident no. II (2) G, PTB 01 ATEX 3218 , Siemens or
type EMT6-..., ident no. II (2) G, PTB 02 ATEX 3162 , Moeller
The ABB motor temperature monitoring unit SD241B may also be used for these measures.
For details see instructions for electronic units for rack installation.
10