8-4 Ethernet
AC30 series Variable Speed Inverters
Manually Setting the IP Address
0935 User Gateway Address
Preferred Gateway Address
To set the IP address manually both the DHCP and Auto-IP must be disabled. The IP address, subnet mask and gateway address will be set
from the values in the parameters 0933 User IP Address, 0934 User Subnet Mask, 0935 User Gateway Address.
If the network does not have a gateway to another network then the gateway address may be set to 0.0.0.0
Automatically Assigning an IP Address using DHCP
If the network on which the inverter is connected has a DHCP (Dynamic Host Configuration Protocol) server then the IP address may be
assigned by this server. The DHCP must be enabled. The inverter will then request an IP address, subnet mask and gateway address from the
DHCP server.
Note: There is no guarantee that the DHCP server will provide the same IP address each time. The IP address is requested by the inverter when
the Ethernet port is connected to a network or when the inverter is powered up.
Automatically Assigning an IP Address using Auto-IP
The inverter may assign itself a link-local address automatically using Auto-IP. This would be used where an automatic address is required but
where no DHCP server is available, such as a small local network or when connecting an inverter directly to a PC (point to point). The Auto-IP
must be enabled.
The inverter will choose an IP address randomly from the link-local range 169.254.*.*. The AC30 checks that no other Ethernet device on the
network is using the address before allocating it. The Inverter will store this IP address (in parameter 0931 Last Auto IP Address) and attempt
to use it next time Auto-IP is used. The gateway address is fixed to 0.0.0.0
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