Installation
8
3A5056B
Validating the Field Apparatus
Entity Parameters
The entity parameters of the barrier outputs must be
matched to the entity parameters of the field apparatus
power inputs.
The barrier outputs are defined using the symbols
U
o
,
I
o
,
P
o
,
C
o
,
L
o
, and
L
o
/R
o
.
The barrier outputs are alternately defined using the
divisions symbols
V
oc
,
I
sc
,
P
o
,
C
a
,
L
a
, and
L
a
/R
a
.
The field apparatus power inputs are defined using a
combination of the symbols Ui, Ii, Pi, Ci, and Li. It is pos-
sible that all parameters are not defined. In some cases
the equivalent value can be calculated. Refer to the
appropriate installation standards if this is the case.
For an installation to be valid and safe, use the following
calculation methods. All calculation comparisons must
be true:
F
IG
. 2: Entity Parameters
clip
Parameter
Zones
Divisions
Voltage
U
o
≤ U
i
V
oc
≤ U
max
Current
I
o
≤ I
i
I
sc
≤ I
max
Power
P
o
≤ P
i
P
o
≤ P
i
Capacitance
C
o
≥ C
i
+ C
cable
C
a
≥ C
i
+ C
cable
Inductance
L
o
≥ L
i
+ L
cable
L
a
≥ L
i
+ L
cable
Inductance to
Resistance
Ratio
L
o
/R
o
≥ L
i
/R
i
L
a
/R
a
≥ L
i
/R
i
