ENGLISH
GB
16
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 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
6.2.4 Outputs
Figure 8: Pull-out 13-pole terminal board: 0-10V inputs and PWM
With reference to Figure 9 the digital outputs available are:
Output
Terminal no.
Type of
contact
Associated function
OUT1
1
NC
Presence/Absence of alarms in the system
2
COM
3
NO
OUT2
4
NC
Pump running/Pump stopped
5
COM
6
NO
The outputs OUT1 and OUT2 are available on the pull-out 6-pole terminal board as spec-
ified in Table 4 which also shows the type of contact (NC = Normally Closed, COM =
Common, NO = Normally Open). The electrical characteristics of the contacts are shown
in Table 5. In the example shown in Figure 8 the light L1 is lit when there is an alarm in
the system and it goes off when no kind of malfunction is found, whereas the light L2 is lit
when the pump is running and goes off when the pump is stopped.
Characteristics of the output contacts
Max. bearable voltage [V]
250
Max. bearable current [A]
5
If resistive load
2,5
If inductive load
Max. accepted cable section [mm²]
2,5
6.3 Connections for Twin Systems
For correct operation of the twin system, all the external connections of
the pull-out 13-pole terminal board must be connected in parallel between
the 2 EVOPLUS respecting the numbering of the individual terminals.
7. START
Al
l the starting operations must be performed with the cover of the EVO-
PLUS control panel closed. Start the system only when all the electrical
and hydraulic connections have been completed.
Avoid running the circulator when there is no water in the system.
Table 4: Outputs OUT1 and OUT2
Table 5: Characteristics of the output contacts
Figure 9: Pull-out 6-pole terminal board: example of output connection
