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6 Connection and Commissioning
Figure 10: Pin assignment for terminal X1
Pin
Signal
1
Not assigned
2
24 V
3
GND
Procedure:
1. Mount the power supply unit (see manual from manufacturer).
2. Connect the connection cable to the power supply unit (see manual from manufacturer). Trim
the unused insulated conductors up to the cable sheath and write down the conductor colors.
3. Connect the connection cable to the three-pole plug. Unlock conductor entries 2 and 3 with a
screwdriver and insert the insulated conductors into the conductor entries. Observe the pin
assignment.
4. Connect the three-pole plug to terminal X1 on the Cluster Controller.
5. Connect the AC connection cable to the power supply unit (see the manual from
manufacturer).
6.
Danger to life due to electric shock
Lethal voltages are present at the connection point of the utility grid.
• Disconnect the connection point from voltage sources and ensure that the connection
point is voltage-free.
7. Connect the other end of the AC connection cable to the voltage supply.
8. Connect the connection point to the utility grid.
☑ The power LED (
permanently glowing green.
The status LED (
page 66). The Cluster Controller is ready for operation after a maximum of one minute.
✖ Is the power LED (
red and the Cluster Controller not starting?
Possible fault cause: the voltage supply is too low.
• Ensure that the voltage supply is sufficient (see Section 9, page 78).
34
ClusterController-IA-en-15
Explanation
Reserved for future applications
Input voltage 24 V DC
Ground
) on the Cluster Controller is glowing red for two seconds, then it is
) is glowing corresponding to the current device status (see Section 7.1,
) glowing permanently red, the status LED (
SMA Solar Technology AG
) glowing yellow or
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