Preparing The Ac Connection; Preparing The Dc Connections; Preparing The Data Connection Cable; Connecting The Inverter And Switching On The Ac Power - Steca Elektronik StecaGrid 2020 Instrucciones De Instalación Y Manejo

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8.3

Preparing the AC connection

8.3.1 Line circuit breaker
Information on the required line circuit breaker and the cables to be used between the inverter and
the line circuit breaker is provided in Section 13.2, P. 33.
8.3.2 Residual current circuit breaker
If the local installation regulations require the installation of an external residual current circuit
breaker, then a Type A residual current circuit breaker as per IEC 62109-1, § 7.3.8. is sufficient.
8.3.3 Wiring the AC plug
Danger
Risk of death by electrocution! Observe the warning notes in Section 8.1, P. 18!
 Wire the AC plug as described in P. 145 onwards.
8.4

Preparing the DC connections

Danger
Risk of death by electrocution!
• Opposing Multi-Contact connectors must be attached to the DC cable to suit the Multi-Contact
MC4 DC connections (opposing connectors optionally available).
• Observe the warning notes in Section 8.1, P. 18.
Attention
Danger of damage to the inverter and the modules. Connect the opposing connectors for the DC
connections to the DC cable, observing the correct polarity.
1. Attach the Multi-Contact MC4 opposing connectors to the DC cable according to the manufac-
turer's instructions.
2. If legally prescribed (e.g. France), plug in the optionally available safety sleeves, according to the
manufacturer's instructions (Fig. 7).
Fig. 7: Safety sleeve unmounted (left) and mounted (right)
8.5

Preparing the data connection cable

 If a data connection is required, use a standard RJ45 cable (patch cable) or construct an alterna-
tive data connection cable (Section 7.6, P. 15).
8.6

Connecting the inverter and switching on the AC power

Danger
Risk of death by electrocution! Observe the warning notes in Section 8.1, P. 18.
1. If necessary, establish a data connection:
– Connect the inverter and bus master using the data connection cable.
– Manually switch on the termination (slide switch) at the last inverter on the bus.
2. Push the Multi-Contact MC4 opposing connector of the DC cable firmly into the DC connection
of the inverter until it audibly clicks into place.
3. Insert the AC plug into the socket on the inverter until it audibly clicks into place.
4. Switch on the AC line circuit breaker. The start page for initial commissioning is shown on the
display.
5. Perform initial commissioning and switch on the DC supply, as described in Sections 8.7 and 8.8.
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