EL DC Instalation and operation manual v13.docx
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3.4. Connection
3.4.1. Earth protection
As a device with class l protection against electric shocks, it is essential to install a protective
earth wire (connect earth ). Connect the protection earth wire to the terminal (X5) before
connecting the grid to the electronic load input.
On the other hand, connect the protection earth wire to the terminal (X10) before connecting
the EUT to the electronic load output.
3.4.2. Input connection, terminals (X1 to X5).
Connect the grid cables R, S, T and N to the terminals (X1), (X2), (X3) and (X4) respectively. This
connection must always be done according to the label placed under the input screw terminals.
In case of discrepancies between labelling and this manual instructions, the label information
will always prevail.
3.4.3. Output connection, terminals (X6 to X10)
3.4.3.1. DC unipolar mode
The equipment behaves as 3 independent (or parallel) positive power supplies. Each one is
referenced to its common (negative) point.
- First power supply: between X6 and X20
- Second power supply: between X7 and X21
- Third power supply: between X8 and X22
It is important not to use X9 terminal.
3.4.3.2. DC bipolar mode
The equipment behaves as 2 independent power supplies. One is always positive, the other
always negative and both are referenced at the same point X7.
- Positive power supply: between X6 and X7
- Negative power supply: between X8 and X7
3.4.4. External Emergency Power Off connection (X12)
CINERGIA units are equipped with a local Emergency Stop pushbutton at the front panel. When
this local pushbutton is pressed, the unit will be completely switched off by disconnecting the
main contactors at the input and at the output. For safety reasons, the operation is done by
hardware.
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