Electrical Connection; Data Communication / Bus - Resol DeltaSol AL E Manuel

2.2

Electrical connection

Note:
Connecting the device to the power supply
must always be the last step of the instal-
lation!
The controller is equipped with a change-over relay
to which a load such as a pump, a valve, etc. can be
connected:
10
grounding conductor
11
grounding conductor
18 conductor R1-R (normally closed contact)
19 conductor R1-A (normally open contact)
20 neutral conductor N
The controller is equipped with 2 high-current relays
for connecting an electric immersion heater of up to
3 kW:
12
grounding conductor
13
grounding conductor
14 mains conductor
15 conductor electric immersion heater
16 neutral conductor mains
17 neutral conductor mains electric immersion heater
Depending on the product version, mains cable and
sensor cables are already connected to the device. If
that is not the case, please proceed as follows:
Connect the temperature sensors (S1 to S3) to
the corresponding terminals with either polarity:
1/2 sensor 1 (e. g. sensor collector)
3/4 sensor 2 (e. g. sensor store bottom)
5/6 sensor 3 (e. g. sensor store top)
Connect the RESOL VBus to the terminals marked
®
"VBus" with either polarity:
7 VBus terminal
8 VBus terminal
Connect the mains cable to the following terminals:
21 neutral conductor N
22 conductor L
9 grounding conductor
Attach flexible cables to the housing with the en-
closed strain relief and the corresponding screws.
The controller is supplied with power via a mains
cable. The power supply of the device must be
100 ... 240 V~ (50 ... 60 Hz).
WARNING! ESD damage!
Electrostatic discharge can lead to
damage to electronic components!
Î Take care to discharge pro-
perly before touching the
inside of the device!
sensor terminals VBus
2.3

Data communication / Bus

The controller is equipped with the RESOL VBus
data transfer with and energy supply to external mo-
dules. Carry out the connection at the two terminals
marked "VBus" (any polarity). One or more RESOL
VBus ® modules can be connected via this data bus,
such as:
• RESOL GA3 Large Display from version 1.31
• RESOL SD3 Smart Display from version 1.31
• RESOL DL2 Datalogger
• RESOL VBus
• RESOL AM1 Alarm module
®
grounding conductor -
common terminal block
®
/ USB interface adapter
®
load terminals
mains terminals
for
23