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5.11 DO Connection
The inverter is equipped with a DO relay for an earth fault alarm. The additional equipment
required is a light indicator and/or a buzzer that needs additional power supply.
Once fault occurs, the relay trips and the circuit is connected. The external indicator gets on.
The relay remains triggered until the fault is removed.
figure 5-9 DO Normal Open Connect
The additional DC power supply should comply with related requirements:
• Max. voltage: 30 V
• Max. current: 1 A
Refer to section "5.9.1 Assembling the COM Connector" for detailed assembling procedure.
Plug the wires to NO and COM terminals according the labels on the bottom of the inverter.
Refer to section "5.10.3 Installing the COM Connector" to install the connector.
5.12 DRM Connection
In Australia and New Zealand, the inverter supports the demand response modes as speci-
fied in the standard AS/NZS 4777.
The following figure shows the wiring between the inverter and the external DRED.
5 Electrical Connection User Manual
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