Contrel EMA90, User Manual, Page: 20 / 64

EMA90 - USER MANUAL
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8) INPUTS / OUTPUTS
8.1) DIGITAL INPUTS
The EMA90 has 2 opt isolated digital inputs. With the 4DI option it’s possible to have additional 4
inputs. For the digital inputs setup please consult the chapter 11.10).
8.1.1) STANDARD DIGITAL INPUTS
If long distances must be covered, the wires connected to the EMA90 needs to be wired in a separate
channel from the power supply cables, if an intersection occurs between the power supply cable and
the analog wires, please remember to cross the intersection at 90 degrees, in order to cut the
generated magnetic fields.
D
i1
+
D
i1
-
D
i2
+
D
i2
-
A
B
N
L N S1 S2 S1 S2 S1 S2
I1 I2 I3
L1V
L2V
L3V
D
i1
+
D
i1
-
D
i2
+
D
i2
-
A
Vaux
Do2-
Do2+
B
CE
+12 ÷ 24 Vdc
+12 ÷ 24 Vdc
D
o
1
+
D
o
1
-
D
o
1
-
D
o
1
+
g
n
d
R
x
T
x
g
n
d
R
x
T
x