Troubleshooting; General - Fronius Modbus Card Bedienungsanleitung

Troubleshooting

General

Status information and errors are indicated by lights and flashes on the State LED.
Except for in the case of an invalid device ID, the card can still be used to communicate
when the State LED is flashing or lit up.
Troubleshooting The State LED lights up red.
Cause:
Remedy:
The State LED flashes red.
Cause:
Remedy:
Cause:
Remedy:
The State LED flashes at a fast rate (twice, with a 0.5 second pause)
Cause:
Remedy:
The State LED flashes at a fast rate (3x, with a 0.5 second pause)
Cause:
Remedy:
An error has occurred in Fronius Solar Net (e.g. an interruption).
Check Fronius Solar Net and resolve the interruption; check whether termina-
tion plugs are plugged into free Solar Net connections for the DATCOM com-
ponents.
Overcurrent in Fronius Solar Net
The Solar Net overcurrent shutoff has activated because a current greater
than 3 A was measured at one of the Solar Net connections.
Resolve the short circuit
After 5 seconds, the Fronius Modbus Card reattempts to create a connection
to the Solar Net.
Under-voltage in Fronius Solar Net
The Solar Net under-voltage shutoff has activated because the voltage
dropped to below 6.5 V as a result of overcharging in the power supply unit.
Reduce the load
(e.g.: with an additional power supply unit when there is one Solar Net partic-
ipant)
After 5 seconds, the Fronius Modbus Card reattempts to set up a connection
to the Solar Net.
Device ID setting invalid
Set a valid device ID (1 to 247) on the Modbus ID setting wheels
No DC power supply, inverter is switched off (e.g., at night)
Reconnect DC power supply
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