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12.4 Active signal outputs, digital
Signals are routed to a superordinate controller via the
digital signal output "3.1 SIG".
The 24 V DC signal is applied between the connection
terminal blocks "3.1 SIG" and "2.2 -" or 2.3 -". The maximum
load is 30 mA.
Figure 21
Signaling
12.4.1 Signal level surge protection
IEC 61850-3 Immunity Requirement
Signal connections must satisfy the immunity requirement.
Equipment that is installed in "protected" areas and has
direct connections to other areas must satisfy the immunity
criteria.
Use Phoenix Contact surge protection (Order No. 2905223)
when you are using signal connection types p, l, f, and h for
the signal paths.
DIN EN 61000-6-5 Electromagnetic Compatibility
(EMC)
The interface area may include items such as equipment,
devices, apparatus, and systems connected to the outside
world.
Use Phoenix Contact surge protection (Order No. 2905223)
when you are using connection terminal blocks "3.1 SIG"
and "2.2 -" or "2.3 -" for the signals.
(see Section: Technical data, electromagnetic compatibility
table)
Figure 22
Schematic diagram, signal wiring with
TRABTECH surge protection
PLC
Digital Input
GND
DI x 0/24 V DC
Output
Boost > 100%
> 75%
> 50%
DC OK
P >P
U
Out
Thr
Out
Signal (SIG)
SIG
+ −
QUINT PO
WER
Or
d.No
.290xxxx
3.1 2.1 2.2
6
2
4
5
1
3
PLC
Digital Input
GND
0/24 V DC DI x
Boost > 100%
> 75%
> 50%
DC OK
P >P
Out
Thr
Signal (SIG)
U
Out
QUINT PO
WER
Or
d.No
.290xxx
SIG
−
3.1
2.2
2.1
Output DC
+
