DISTRIBUTED I/O
EN0B-0090GE51 R0802
8
Relay Modules MCD 3 and MCE 3
The relay modules facilitate the control of peripheral devices
with high load via the analog outputs. Fig. 4 and Fig. 5
present connection examples for the relay modules MCD 3
and MCE 3, respectively.
230 Vac / 120 Vac
FUSE
0.2 A
K 1
K 2
K 3
3 A
1112131415161718
1 2
2
3
K3
4 5
K1
L N
6 7 8
MCD 3
AO1
18
AO2
19
AO3
20
AO4
21
00000001
Fig. 4. Analog outputs, connection of relay MCD 3
MCD 3
Relay terminal 17 controls the changeover contact K3. Relay
terminal 18 controls the ON contacts K1, K2. Ground can be
looped through terminals 2/3.
230 Vac / 120 Vac
FUSE
AO1
18
AO2
19
AO3
20
AO4
21
000
00
00
2
11 12 13 14 15 16 17 18
1 2 3
K1
K2 K3
4 5 6 7 8
MCE 3
0.2 A
K 1
K 2
2 A
K 3
Fig. 5. Analog outputs, connection of relay MCE 3
MCE 3
Relay terminal 16 controls the ON contact K3. Relay terminal
17 controls the changeover contact K2. Relay terminal 18
controls the changeover contact K1.
Power Supply
Several relay modules can be connected in series via the
bridged terminal pair:
24 Vac:
Terminals 11/12 of the relay
24 Vac (-):
Terminals 13 to 16 of the relay (MCD3)
24 Vac (-):
Terminals 13 to 15 of the relay (MCE3)
Attention: Always connect the same side of the transformer to the same side of XSL511.
24 V
a
c
+/-
20%
230 V
a
c
120 V
a
c
fu
se
depen
dent
upon y
our
t
ran
sf
or
m
e
r
fu
se
depen
dent
upon y
our
t
ran
sf
or
m
e
r
XF
L5
22 +
XS
L513
XS
L51
1
18
20
21
22
23
24
25
26
27
28
GND
Ac
tu
at
o
r
2
A
ct
uat
or
1
19
AO1
AO2
AO3
AO4
AO5
AO6
AO7
AO8
1
2
3
4
5
6
S
8
7
PE
24V
PE
~
1
2
3
4
5
6
Connector Module
XSL 511
Honeywell AG
Made in Germany
1
2
3
LON
shield
4
5
6
LON
shield
30
31
32
33
34
A1
A1
47
48
49
50
51
52
0...10 V
M
24
V
↑
0
0...10 V
M
24
V
↑
0
XF
L5
22 +
XS
L513
XS
L51
1
18
20
21
22
23
24
25
26
27
28
GND
Ac
tu
at
o
r
2
A
ct
uat
or
1
19
AO1
AO2
AO3
AO4
AO5
AO6
AO7
AO8
1
2
3
4
5
6
S
8
7
PE
24V
PE
~
1
2
3
4
5
6
Connector Module
XSL 511
Honeywell AG
Made in Germany
1
2
3
LON
shield
4
5
6
LON
shield
30
31
32
33
34
A1
A1
47
48
49
50
51
52
0...10 V
M
24
V
↑
0
0...10 V
M
24
V
↑
0
29
29
Fig. 6. XFL522B analog output module