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
6.2.4.
Outputs
Figure 9: Pull-out 6-pole terminal board: example of output connection
With reference to Figure 9 the digital outputs available are:
Output
Terminal no.
Type of contact Associated function
1
NC
OUT1
2
COM
3
NO
4
NC
OUT2
5
COM
6
NO
Table 4: Outputs OUT1 and OUT2
The outputs OUT1 and OUT2 are available on the pull-out 6-pole terminal board as specified
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]
Max. bearable current [A]
ENGLISH
Presence/Absence of alarms in the
system
Pump running/Pump stopped
250
5
If resistive load
GB
16