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Electrical Connection
7.7.3 Ripple Control Communication Connection
Ripple Control is a common form of grid management. Its communication is based on
superimposing a very high frequency signal onto the 50/60Hz mains power. The inverter
supports to connect a digital signal source (e.g. ripple control receiver) to the digital input.
Requirments for Ripple control
• The signal source must be technically suitable for connection to the digital inputs.
(see technial data)
• The connected digital signal source has a safe separation to the grid potential.
Connection diagram for ripple control
K1
K2
K3
K4
Ripple control receiver Ripple control terminal
8
7
6
5
4
3
2
1
Figure 7-56 Connection diagram for ripple control
Ripple control wiring procedure
Step 1: Loosen the screws on the COM 2 terminal. Pinch the tabs on the sides of the
COM 2 connector enclosure and pull it at the same time to remove it.
Step 2: Loosen the swivel nut and pull out the sealing plugs. Keep them still in the cable
support sleeve if you choose not to connect the cable.
Remove
1
2
3
Figure 7-57 Disassembling the connector
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