DC link monitoring

Monitoring is started at an interval of 1 ms. The grid is monitored using the DC voltages of the A-side or the B-side, depending on the setting.

With DC link monitoring, no fault is triggered. The device changes its status from "Ready" to "Not ready" in case of undervoltage, inhibiting the monitored output stage end.

The device display shows "00". The bit "DC 24 V standby mode" is set into the status bit "Not ready – power supply" as the reason for "Not ready".

The DC link monitoring can be set using the following parameters:

• Monitoring the selection of the output stage end
• The parameter "8809.25" is used to select which output stage end is to be monitored.
• None
• A-side
• B-side
• Voltage level "On" adjustable using parameter "8809.26"
• Level