DAB evoplus+ Mode D'emploi page 19

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6.2.1. Digital Inputs
Figure 7: Pull-out 13-pole terminal board: digital inputs and MODBUS
With reference to Figure 7 the digital inputs available are:
Input Terminal no. Type of contact
12
IN1 Clean contact
13
10
IN2 Clean contact
11
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.
14
Associated function
EXT: If is activated from the control panel
(see par. 12 Page 11.0 of the EVOPLUS
menu) it will be possible to command the
switching on and off of the pump in remote
mode.
Economy: If is activated from the control
panel (see par. 12 Page 5.0 of the EVOPLUS
menu) it will be possible to active the set-
point reduction function in remote mode.
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
The MODBUS communication configuration parameters are available in the advanced menu see
Par.10). EVOPLUS circulators also have the possibility of communicating on LON bus through external
interface devices.
Further information and details on the MODBUS and LON bus interface are available at the following
link: http://www.dabpumps.com/evoplus
6.2.3. Analogue Input and PWM
Figure 8: Pull-out 13-pole terminal board: 0-10V inputs and PWM
Figure 8 shows the wiring diagram of the external signals 0-10V and PWM. As may be seen from the
figure the 2 signals share the same terminals on the terminal board, so they are mutually exclusive. If
you want to use an analogue control signal, you will have to set the type of signal from the menu (see
par. 10).
Further information and details on the MODBUS and LON bus interface are available for download at
the following link: http://www.dabpumps.com/evoplus
Description
2 Terminal not inverted (+)
1 Terminal inverted (-)
3 GND