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Beschikbare talen
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6.1.
Power supply connection
Figure 6: Pull-out terminal board for supply
Before supplying power to the circulator, ensure that the cover of the EVOPLUS
control panel is perfectly closed!
6.2.
Electrical connections of Inputs, Outputs and MODBUS
EVOPLUS circulators are equipped with digital and analogue inputs and digital outputs so as
to be able to realise interface solutions with more complex installations. For the installer it will
be sufficient to wire up the desired input and output contacts and to configure their functions
as desired (see par. par. 8.2.1 par. 6.2.2 par. 6.2.3 and par. 6.2.4).
6.2.1.
Digital Inputs
Figure 7: Pull-out 13-pole terminal board: digital inputs and MODBUS
15
With reference to Figure 7 the digital inputs available are:
Terminal
Type
of
Input
Associated function
no.
contact
12
EXT: If is activated from the control panel (see par. 12 Page
Clean
11.0 of the EVOPLUS menu) it will be possible to
IN1
contact
command the switching on and off of the pump in remote
13
mode.
10
Economy: If is activated from the control panel (see par. 12
Clean
IN2
Page 5.0 of the EVOPLUS menu) it will be possible to
contact
11
active the set-point reduction function in remote mode.
Table 2: Digital inputs IN1 and IN2
If the EXT and Economy functions have been activated from the control panel, the system
will behave as follows:
IN1
IN2
System Status
Open
Open
Pump stopped
Open
Closed
Pump stopped
Closed
Open
Pump running with set-point set by the user
Closed
Closed
Pump running with reduced set-point
6.2.2.
MODBUS and LON Bus
EVOPLUS circulators provide serial communication through an input RS-485. The
communication is realised according to MODBUS specifications.
With MODBUS it is possible to set the circulator operating parameters in remote mode such
as, for example, the desired differential pressure, the influence of temperature, the regulating
mode, etc. At the same time the circulator can provide important information on the system
status. For the electrical connections refer to Figure 6 and to Table 3:
MODBUS Terminals
Terminal no.
A
B
Y
Table 3: RS_485 MODBUS terminals
Description
2
Terminal not inverted (+)
1
Terminal inverted (-)
3
GND
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