ABB EBN861 Instruction - Page 10

Parcourez en ligne ou téléchargez le pdf Instruction pour {nom_de_la_catégorie} ABB EBN861. ABB EBN861 18 pages. Power electronic units for field installation. for the control of contrac actuators of the pme, lme, rhd or rsd series
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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

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.