Vemer VE474300 Solar 3 Centralina Control Charges User Manual

: June 13, 2024
: Vemer

Table of Contents

Vemer VE474300 Solar 3 Centralina Control Charges
DIMENSIONS
INSTRUMENT DESCRIPTION
INSTALLATION
OPERATION
ADVANCED PROGRAMMING
CONTACT
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Vemer VE474300 Solar 3 Centralina Control Charges

DIMENSIONS

INSTRUMENT DESCRIPTION

Red led: on if the consumed power is higher than that produced
Keys increase/ decrease
Key PRG: instrument programming/confirmation
- brief pressure = lower than 3 seconds
- long pressure = higher than 3 seconds
Data view display
- 4.1 Measured power generated or consumed
- 4.2 Segments for loads status indication (disconnected = fixed on, connected = flashing)
Power supply terminals/inputs
- Terminals 6-8: voltage input/instrument power supply
- Terminals 8-9: current input through current transformer
Relays terminals for loads connection

INSTALLATION

The positioning of the current transformer is essential for the correct operation of the instrument.

The correct position of the current transformer within the electrical system is shown in the picture 1
The direction of the produced current (i) is shown in the picture 2 (incoming current in the current transformer form the side indicated on the label)
The current transformer must be connected to the terminals 8 and 9 of SOLAR-3:
- terminal 8: white thread
- terminal 9: black thread

Four loads or groups of loads must be located

not disconnectable loads, that is to say the loads which are always connected
to the electrical line and which will not disconnect by SOLAR-3 if the production
of energy is lower than necessary (their consumption must be counted anyway by
SOLAR-3 to determine the total consumption)
connectable loads with priority 1, which will be connected for first if the surplus
of power is higher than the setpoint
connectable loads with priority 2
connectable loads with priority 3

OPERATION

DEFINITION AND MODIFICATION OF OPERATION PARAMETERS

Setpoint [kW] represents the activation threshold that is to say the minimum value of surplus of power necessary for connect the load according to the priority.
Hysteresis (or differential) (kW) represents the value to subtract from the setpoint to determine the disconnection zone (that is to say the zone where the loads are disconnected). This value can be set higher than the setpoint value. This setting of SOLAR-3 allows the use of all self-produced power and the use of the remaining power from the low voltage grid.
Example 1: if the setpoint = 3 Kw and differential = 0.5 kW the loads eventually connected are disconnected if the value of measured absorbed power is lower than 2.5 kW.
Example 2: if the setpoint = 3 Kw and differential = 4 kW the loads eventually connected are disconnected if the value of measured absorbed power is lower than“-1kW” (1kW taken from the low voltage network). In this way the loads will use all the self-produced power and the power of 1 kW from the low voltage grid.
Delay On [s] represents the minimum time which must elapse from the last connection (or disconnection) of one load before connecting another one. This time is valid also at start-up that is to say , even if the surplus of power allowed, no load is connected before Delay seconds elapse from the switch on.
Delay Off [s] represents the delay of disconnection, that is to say how long the surplus of power must result lower than the setpoint – hysteresis before the instrument disconnects one load.
Reset the device reset can be performed by pressing simultaneously the keys and : the loads are disconnected and then reconnected according to the set priority.

To access the modification or the operation parameters display press the key .

OPERATION LOGIC

The SOLAR-3 switches on with the disconnected loads; every Delay On seconds one load is connected (if the surplus of power is higher than the setpoint).
During the normal operation the instrument shows the surplus of produced power (expressed with two decimals) and relays status (segment on fixed if disconnected load, flashing segment if connected load)
The programmed setpoint can be showed for three seconds by pressing the key .
Configuration relays (normally open or normally closed) can be showed by pressing the key and then relays priority. Each display is visible for 3 seconds.
information to users pursuant to art. 14 of the directive 2012/19 / EU of the european parliament and of the council of 4 july 2012 on waste electrical and electronic equipment (WEEE) If the crossed-out bin symbol appears on the equipment or packaging, this means the product must not be included with other general waste at the end of its working life.
The user must take the worn product to a sorted waste center, or return it to the retailer when purchasing a new one.
Products for disposal can be consigned free of charge (without any new purchase obligation) to retailers with a sales area of at least 400 m2, if they measure less than 25 cm.
An efficient sorted waste collection for the environmentally friendly disposal of the used device, or its subsequent recycling, helps avoid the potential negative effects on the environment and people’s health, and encourages the re-use and/or recycling of the construction materials.

REFERENCE STANDARDS

Compliance with Community Directives:
2006/95/EC (Low Voltage) 2004/108/EC (E.M.C.)
is declared with reference to the following standards:
• EN 61010-1• EN 61000-6-2 and 61000-6-3

ADVANCED PROGRAMMING

To access the advanced programming press the key for 3 seconds at least
This menu allows: the firmware version display, the modification of the logic of relays operation, the modification of relays priority, the setting of the instrument backlighting.
The output from the menu of advanced programming restarts the microcontroller. This means that the loads eventually connected are disconnected and then reconnected one at time every Delay.On seconds (only if the power production allow this).
It displays the firmware version of the instrument.
Not modifiable field.

Normally closed (N.C.) (default setting)

deenergized relay, disconnected load (used contacts: C, NA)
excited relay, connected load (used contacts: C, NA)

Normally open (N.O.)

excited relay, disconnected load (used contacts: C, NC)
deenergized relay, connected load (used contacts: C, NC)

It allows to change the priority of relays outputs, that is to say the order with whom the loads are connected and disconnected in case of surplus of power.
If not modified the priority is the following:

OUT1 = P1 (the most priority output , that is to say the one which will be connected for first if the surplus of produced power is higher than the Setpoint).
OUT2 = P2
OUT3 = P3

Attention: if by pressing the keys or you can’t go to the next menu (backlighting) or to the previous menu (relays logic) it’s probable that the same priority P has been assigned to two different outputs OUT.
Correct by assigning different priorities to the three outputs.

It allows to set the backlighting