5 Startup
5.8 Connect signal contact cables (optional)
40
OZD Profi G12D... ATEX 1 V. 03 07/2014
5.8 Connect signal contact cables (optional)
z
Warning!
Work on ex-e cables in zone 1 is permitted only
with hot work permit or in the current-free state.
The repeaters are equipped with a signalling contact
connection.
The signalling contact connection is designed in the igni-
tion protection ex-e EN 60079-7:2007. The connection
cables are placed on the front side of the OZD Profi
G12DU ATEX 1 on three separate single terminals (F NO,
F NC and F). The terminals have a valid type approval
certificate.
Note
: The terminals are accessible for OZD Profi … DK
… and OZD Profi … DE … after opening the protective
housing.
Connect the signalling contact cable to the terminal
block, see fig 26.
Lead the signalling contact cable for OZD Profi
G12DK ATEX 1 and OZD Profi G12DE ATEX as shown
in figure 27 through the cable entries (PG-glands).
Ensure adequate stress relief of the cables and note
its minimum bending radii.
z
Warning!
Limit values of the relay contact
– maximum switching voltage: 32 V
– maximum switching current: 1.0 A
– maximum switching capacity:
30 W
Voltage connected to the relay must be a
safety
low voltage
as per IEC 950/EN 60 950/ VDE 0805
and according to the UL/CSA approval must com-
ply with the regulations of NEC, class 2.
Kindly ensure correct connection allocation of the
terminal block. Ensure adequate electrical iso lation
of the connection cables of the signalling contacts.
Faulty allocation may destroy the repeater.
Breakdowns of the network and the repeater can be sig-
nalled by the signalling contact connection.
24
V*
24
V
DI
B
DI
A
0V
0V
FG FG
DO
B
DO
A
CH
0V
F
NC
F
NO
CH
3
CH
2
F
FAULT
F
F
N
O
F
N
C
FAULT
Fig. 26: Terminal block - connection of the signalling contact
cables for OZD Profi G12DU ATEX 1 (OZD Profi ...DK ...
and OZD Profi ... DE ... : after opening the housing)
Fig. 27: Cable lead-through of the signalling contact for OZD
Profi G12DK ATEX 1
(OZD Profi ... DE ... : analog)
S0 S1 S2 S3 S4 S5 S6 S7
Sys
te
m
C
H1
C
H
2
C
H
3
C
H
3
C
H
2
24
V*
24
V
DI
B
DI
A
0V
0V
FG FG
DO
B
DO
A
CH
0V
F
NC
F
NO
CH
3
CH
2
F
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