Troubleshooting; Error Code - Kaco blueplanet 3.0 NX1 M2 Manual

7 Troubleshooting

Under <Communication Device Properties>, an existing error is displayed under < Instantaneous Values>. The error refers
to the connected <master inverter>.
Parameters Description

Error code

"N/A" is displayed here if no error has occurred.
7.1 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 switch of the inverter is in position "1" or "on".
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 terminal connection is not loose.
Use an energy meter or a clamp meter to check whether the inverter starts up. If the device starts up,
5
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 connection firmly when attaching the terminals. 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 isolator switch 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 isolator switch 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 inverter. Please contact customer service to
replace the inverter.
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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