Electrical Connection; Data Communication / Bus - Resol EM Manual

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2.2

Electrical connection

Note
Connecting the device to the power supply
must always be the last step of the instal-
lation!
The device is equipped with 4 semiconductor relays
and 1 potential-free relay to which loads such as
pumps, valves, etc. can be connected:
Depending on the product version, the mains cable and
the sensor cables are already connected to the device.
If that is not the case, please proceed as follows:
Connect the temperature sensors (S1 to S6) to
the corresponding terminals with either polarity:
1/2
sensor 1
3/4
sensor 2
5/6
sensor 3
7/8
sensor 4
9/10
sensor 5
11/12
sensor 6
Connect the RESOL VBus
to the terminals marked
®
"VBus" with either polarity:
13/14
VBus terminals
Potential-free relay:
15
conductor R5-A (normally open contact)
16
conductor R5-M (normally closed contact)
17 ... 21
ground conductor
Semiconductor relays:
22
neutral conductor R4
23
normally open contact R4
24
neutral conductor R3
25
normally open contact R3
26
neutral conductor R2
27
normally open contact R2
28
neutral conductor R1
29
normally open contact R1
17 ... 21
ground conductor
Connect the mains cable to the following terminals:
30
neutral conductor N
31
conductor L
17 ... 21
ground conductor
Attach flexible cables to the housing with the en-
closed strain relief and the corresponding screws.
The device is supplied with power via the mains cable.
The mains voltage must be 100 ... 240 V~ (50 ... 60 Hz).
EM
Made in Germany
S1
S2
S3
S4
S5
1
2
3
4
5
6
7
8
9 10
sensor terminals
ATTENTION!
2.3

Data communication / Bus

The device is equipped with a RESOL VBus
data communication with the controller. Carry out
the connection at the two terminals marked "VBus"
(any polarity).
IP 20
S6
VBus
11 12
13 14
15 16
17
18
19
VBus
®
ground common
potential-free relay
terminal block
ESD damage!
Electrostatic discharge can lead to
damage to electronic components!
Î Take care to discharge
properly before touching
the inside of the device!
®
T4A
R1-R4
1 (1) A (100 ... 240) V~
100 ... 240 ~
V
R5
4 (1) A (100 ... 240) V~
50-60 Hz
N
R4
N
R3
N
R2
N
R1
N
20
21
22
23
24
25
26
27
28
29
30
load terminals
mains terminals
for
L
31
17

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