Troubleshooting; Error Code - Kaco blueplanet 3.0 NX3 M2 Manual

10.4

Troubleshooting

In <Communication unit properties>, a pending error is displayed under <Live values>. The error relates to the connected
<Master inverter>

Error code

"N/A" is displayed here if no error has occurred.
10.5
Error code
The following solutions are recommended when the error code is displayed:
No.: · Description
Step LED not illuminated/no power output
1 Make sure that the DC isolator switch on the device is in the "1" or "ON" position.
2 Use a multimeter to check the polarity of PV+ and PV-. The red measuring probe is connected to the
positive pole, the black probe to the negative pole. The value should be positive.
3 Using the multimeter, check whether the DC voltage lies within the voltage range of the inverter or not.
4 Make sure that the DC solar plug connection is not loose.
5 Use an energy meter or a clamp meter to check whether the inverter starts up. If the device starts up,
the cause may be an internal short-circuit in the communication cable.
No.: · Description
Step AC/DC terminals melted
1 It is necessary to tighten the terminals in order to establish the connection. Then, use external force to
check whether the connection has loosened.
2 Take care that the cables and terminals are not subjected to excessive loads.
No.: E03-E05 Description
Step E03: Relay test failed
E05: Result of the automatic test function failed
1 Disconnect device via the AC circuit breaker and measure the AC voltage with a multimeter. The voltage
between the line and the neutral conductor should be approx. 230 V and the voltage between the
neutral conductor and earth within 20 V.
2 If the measured voltage is abnormal, the error is caused by the system voltage. If the measured voltage
is normal, please switch the AC circuit breaker on and continue with the next step.
3
Measure the AC voltage UL1-N，UL2-N，UL3-N，UN-PE using a multimeter.
4 If the measured voltage is normal, there is an error in the device. Please contact customer service to
replace the device.
5 If the measured voltage is abnormal, please check the isolator switch and the cable (wiring error, loose
connection, short-circuit, insulation etc.).
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