DAB Evoplus Serie Instrucciones Para La Instalación Y El Mantenimiento página 23

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]
Max. accepted cable section [mm²]
Table 5: Characteristics of the output contacts
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.
Presence/Absence of alarms in the
system
Pump running/Pump stopped
250
5 If resistive load
2,5 If inductive load
2,5
ENGLISH
7. START
All the starting operations must be performed with the cover of the
EVOPLUS 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.
As well as being at a high temperature and pressure, the fluid in the
system may also be in the form of steam. DANGER OF SCALDING!
It is dangerous to touch the circulator. DANGER OF SCALDING!
Once all the electrical and hydraulic connections have been made, fill the system with
water and if necessary with glycol (for the maximum glycol percentage see par. 2) and
feed the system. Once the system has been started it is possible to modify the operating
modes to adapt better to the plant requirements (see par.10).
8. FUNCTIONS
8.1. Regulating Modes
EVOPLUS circulators allow the following regulating modes depending on plant
requirements:
- Proportional differential pressure regulation depending on the flow present in the
plant.
- Proportional differential pressure regulation with set-point depending on the
external signal 0-10V or PWM.
- Proportional differential pressure regulation depending on the flow present in the
plant and on the liquid temperature.
- Constant differential pressure regulation.
- Constant differential pressure regulation with set-point depending on the external
signal 0-10V or PWM.
- Constant differential pressure regulation with variable set-point depending on the
liquid temperature.
- Regulation with constant curve.
Regulation with constant curve with rotation speed depending on the external signal 0-
10V or PWM.
The regulating mode may be set through the EVOPLUS control panel (see par. 10).
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