VEGA VEGALOG 571 EP (Ex) - Manual (Page 11)

on
BA
571EPEx
on
571CPU
5 TE
on
BA
571EPEx
5 TE
1 2
Fig. 1: Min. distances with Ex version
1
Distance to other module cards
2 Distance to the carrier
The distance from the soldered side of the EP(Ex) card to
other module cards must be at least 10 mm (0.393 in). This
distance is ensured by mounting a blind cover with 5 TE width
(= width of the front plate EP card) (detail 1).
If the EP(Ex) card is mounted on the left of the carrier BGT
LOG
571, a blind cover with 5 TE width must be mounted next
to the module of the card (detail 2).
A separating wall between the connection positions of the
intrinsically safe and non-intrinsically safe circuits must be
inserted so that the min. distance of 50 mm (1.97 in) is
maintained. When using an Ex separating chamber (supplied
with the Ex module), the requirement is fulfilled.
With EP Ex module card, protection IP 20 must be maintained.
Gaps and free modules must be covered in front by respective
blind covers
4.3 Coding
A mechanical coding system avoids later interchanging of the
various module cards in the carrier.
The coding system consists of:
l
two coded pins in the multipoint connector
l
two holes in the male multipoint connector of the respective
component
Separation from non-intrinsi-
cally safe circuits
Protection EP Ex-card
VEGALOG 571 EP (Ex) - Input card Profibus PA 11
Mounting
25681
-
EN
-070529