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10. Electrical Connection
Each actuator requires a Contrac electronic unit. Proper actuator operation requires an actuator spe-
cific software loaded in the associated electronic unit. See electronic unit instructions for details. Com-
pare the data labels on both, electronic unit and actuator, in order to ensure a correct hardware and
software assignment.
The electrical connection is done with a combined plug on the actuator and with screw terminals on the
electronics.
See instructions 42/68-821 for wiring diagram for electronic units for mounting rack installation.
10.1 EBN853 / EBN861(Standard)
mains supply
AC115 / 230 V
EBN861:
only AC230 V
L
Han 10E
heater
approx. 6 W
(option)
Fig. 8: Wiring diagram for standard triggering of of EBN853 / EBN861 (optionally with heater)
The following steps must be performed to switch the actuator to automatic mode (AUT):
- Activate digital inputs DI 1, DI 2 and DI 3 via the configuration program.
- Make sure that the supply voltage is available on digital input 1 (DI 1).
- Activate AUT mode via the configuration program.
10.1.1
Signal input and output (conventional control)
10.1.1.1 Standard
1
+ -
Fig. 9: ** Write-protected when applying +24 V DC to DI 1.
ext. fuse
DI1
DI2
DI3
MAN/AUT MAN(+)
MAN(-)
1
2
3
4
5
N
+
- +
- +
H1
H2
U V W Br Br
1
2
1
2
M
3~
motor
AUT**
MAN
+ Y
- Y
2
3
5
6
8
9 10
4
7
+ -
+ -
Sub Distribution Board
DO1
DO2
DO32
end pos. end pos.
ok/fail.
0%
100%
6
9
11
12
7
8
10
13
-
Contrac Electronic Unit
17 18 19 20 21 22 23 24
PE
3
13 14
17 18 19 20 21 22 23 24
sensors
Contrac Actuator
brake
11
12
13
14
15
26
+ -
-
+
RB
24V
+ -
screen grounded at both ends
single sided screening
in following wiring possible
setpoint
tranmitter
Uv
+HART
4...20 mA
out
0/4...20mA
14
15
26 27
28 29
+
-
+
-
+
RB
RB
24V
+ -
+ -
Uv
24V
Transmitter
4...20mA (Option)
27
28
29
30
31
-
+
RB
+
I
+ -
Uv
U
24V
act. value
0/4...20mA
30
31
+
-
I
U
Han 24E
r00350x1
(r00358e1)
11