Vega Housing type 505 Bedienungsanleitung PDF herunterladen (Seite 6)

6 Housing type 505

Mounting

2 Mounting

2.1 General

Housing type 505 can be screwed directly

on to a mounting plate (see „Dimensions,

holes“) or placed on a carrier rail (35 x 15

acc. to EN 50 022). To do this, it is necessar y

to loosen the two screws on the front of the

housing and to remove the upper part of the

housing from the socket.

For placing on carrier rail or loosening from

the carrier rail, unlock the holding strap with a

screwdriver in the lower rectangular opening

of the socket.

Wire the terminals acc. to the connection plan

(see "3 Electrical connection" or the operating

instructions of the signal conditioning instru-

ment to be installed).

The designations of the terminals correspond

to those on the multipoint connector on the

rear of the signal conditioning instrument.

In case of Ex-applications, mark the sensor

connection terminals (bottom) on the housing

with the supplied blue Ex-labels (contents of

the supplied bag).

Holding strap (orange)

2.2 Coding with Ex-instruments

The multipoint connector of the housing type

505 must be provided with a coded pin (con-

tents of the supplied bag) to avoid inter -

changing between not-Ex and Ex-module

units.

In case of Ex-instruments, equip the

multipoint connector on position c23 with this

coded pin.

2.3 Transparent cover

The module units can be provided with a

lockable transpar ent cover to avoid unauthor -

ised adjustment.

The transparent covers are supplied along

with the module units.

2.4 Retrofitting of the housing with a

power supply unit

Proceed as follows to retrofit a power supply

unit:

- First of all make sure that the supply volt-

age is disconnected on the terminal strips

of the socket!

- Loosen the two hold screws on the front of

the housing and remove the upper part of

the housing (the hold screws are only

accessible when there is no module card in

the housing).

- Shift the power supply board into the guide

rails of the upper part of the housing. Note

the position of the connection plug.

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