Preparing The Ac Connection; Preparing The Dc Connections; Preparing The Data Connection Cable; Connecting The Inverter And Switching On The Ac Power - Steca StecaGrid 3000 Bedienungs Und Installationsanleitung Handbuch

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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 14.2, p. 77.
8.3.2 Residual current circuit breaker
If the local installation regulations require the installation of a 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
Warning
Risk of death by electrocution! Observe the warning notes in Section 8.1, p. 58!
 Wire the AC plug as described in p. 122 onwards.
8.4

Preparing the DC connections

Warning
Risk of death by electrocution!
• Multi-contact MC4 DC plugs are specified for the DC connections (not included in delivery).
• Observe the warning notes in Section 8.1, p. 58.
Caution
Danger of damage to the inverter. Do not connect the DC connections with the wrong polarity.
1. Wire the DC connections (Multi-contact MC4) according to the manufacturer's instructions.
2. If legally prescribed (e.g. France), plug in the safety sleeves according to the manufacturer's
instructions (Fig. 7; safety sleeve is not included in delivery).
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. 55).
8.6

Connecting the inverter and switching on the AC power

Warning
Risk of death by electrocution! Observe the warning notes in Section 8.1, p. 58.
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. Connect the DC cables to the inverter with the correct polarity. Push the Multi-contact MC4 DC
plug into the socket on 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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