10
9.3
Connecting the cable shield
Fig. 10:
Connecting the cable shield of EAN823; EBN853; EBN861
Screen connection at the actuator ist done accordingly.
9.4
Example for signal input / output
(conventional analogue / binary control)
Premises to switch the actuator into automatic mode (AUT):
-
digital inputs D1, D2, and D3 may not be activated via the configuration software (standard config-
uration with default factory settings).
-
activate the AUT mode using the configuration software (standard configuration with default factory
settings).
9.4.1
Standard wiring (analogue setpoint)
Fig. 11:
Possible wiring for standard terminal assignment
9.4.2
Behind a step controller
(binary control without an analogue setpoint)
Contrac actuators feature smooth and continous operation even if the elctronic unit receives binary
commands from a step controller. Use the configuration software for the appropriate settings. The elec-
tronic unit will then integrate the step commands and internally generate an analogue setpoint signal.
Fig. 12:
Possible wiring for „operation behind step controller“
This operating mode requires the switch for the reference potential
to be set to
.
1
1
2
4
4
3
3
-
Remove approximately 2 cm of the cable
sheathing (1) at the cable entry of the
housing (4).
-
Open the cable shield in this area and fold
it back over the cable sheathing (1).
-
Insert the cable end in the cable entry and
fasten it with the clamp; make sure that the
shield is folded back and in contact with
the clamp and the electronics housing.
r00331x1
Uv
24V
24V
+ -
-
-
+
+
RB
RB
+ -
+ -
I
U
Uv
+ -
+ -
+ -
+
AUT
- Y
+ Y
MAN
14
28
30
26
13
12
11
9
10
8
7
6
4
3
2
1
5
15
29
31
27
Ok
r00358x1
act
. value 0/4...20 mA
se
tpoi
nt (
+
HART
)
0/4...20 mA
end pos. 100%
end pos. 0%
DI1
DI
2
DI3
DO1
DO2
DO3
Uv
24V
24V
+ -
-
-
+
+
RB
RB
+ -
+ -
I
U
Uv
+ -
+ -
+ -
+
- Y
+ Y
14
28
30
26
13
12
11
9
10
8
7
6
4
3
2
1
5
15
29
31
27
Ok
r00359x1
DI
1
DI
2
DO
1
DO
2
DO3
act. value 0/4...2
0 mA
act. value 0/4...2
0 mA
end pos. 100%
end pos. 0%
co
ntro
ller
DI3
SYS
