Electrical Connections - Camille Bauer SIRAX TI 807-6 Mode D'emploi

6. Electrical connections

The signal isolator SIRAX TI 807 is plugged onto a backplane
BP 902. A 96 pin connector (Model C, DIN 41 612) estab-
lishes the electrical connections between the transmitter and
the backplane. The pin connections can be seen from Fig. 5
and 6.
Please refer to our backplane instructions for the back-
plane wiring.
Make sure that the cables are not live when
making the connections!
In the case of "Intrinsically safe" explosion-
proof versions [EEx ib ] IIC or [EEx ia] IIC, the
supplementary information given on the type
test certificate and also local regulations
applicable to electrical installations in ex-
plosion hazard areas must be taken into
account.
Note that, ...
... the required electrical insulation and trans-
mission data agree with the data on the
nameplate of the SIRAX TI 807 (
signals and
... in the case of a signal isolator with current
outputs 0...20 mA, the total resistance of the
external leads (receiver plus leads) does
not exceed the maximum burden of 1000 Ω
(non-Ex version) or 500 Ω (Ex version)! See
"Output signal" in Section "4. Technical
data"!
... in the case of a signal isolator with voltage
output 0...10 V , the external receiver con-
nected across the output has a sufficiently
high internal resistance Ri
SIRAX TI 807 output impedance of 500 Ω!
See "Output signal" in Section "4. Technical
data"!
The error due to Ri
500 [Ω] · 100
F [%] =
Ri
... the input and output cables should be twisted
pairs and run as far as possible away from
heavy current cables!
14
input
output signals)!
in relation to the
A
is:
A
[Ω]
A
Signal isolator with two or three isolation and
transmission channels
Back
c b a
–
A1
1
2 +
A
3 –
4
A2
+
5
B 6
–
A3
+
7
8
C
D
E
14
F
G
20
H
I
+
K E1
–
26
27
+
L
E2
28
29
–
+
30
M
31
E3
–
32
Back
c b a
–
E1
1
2 +
A
3 –
4
E2
+
5
B 6
–
E3
+
7
8
C
D
E
14
F
G
20
H
I
+
K A1
–
26
27
+
L
A2
28
29 –
30 +
M
31
A3
–
32
E1, E2, E3 = Input signals
A1, A2, A3 = Output signals
Fig. 5.
Type 807-61..,
Standard (non-Ex)
version
and
Type 807-66..,
Ex version,
(output signals
intrinsically safe)
Fig. 6.
Type 807-62..,
Ex version,
(input signals
intrinsically safe)