ABB SREA-01, User Manual

Page: 92 / 106

Fault tracing
92
Troubleshooting guide
Problem: ABB IP Configuration Tool does not find any SREA-01 units
• Some firewall applications block the ABB IP Configuration Tool. If you are
experiencing problems with finding the SREA-01 unit, try disabling your firewall.
• Make sure that SREA-01 is connected to the same network as the PC without any
gateways.
• Try using a crossover Ethernet cable and connecting the PC to SREA-01 directly.
Problem: SREA-01 can not be connected to locally
• Check that the link LED of the SREA-01 unit is lit. If necessary, check the
Ethernet cabling. Use a straight Ethernet cable when using a switch and a
crossover Ethernet cable when connecting directly to a PC.
• Make sure that SREA-01 is configured with correct network settings. Try
connecting to it with a crossover Ethernet cable and make sure that your network
adapter is configured to the same subnet as the SREA-01 unit. Check that the
unit can be found by ABB IP Configuration Tool.
• If you are using DHCP, make sure that the IP address of SREA-01 has not
changed automatically.
• Make sure that your browser is not configured to use a proxy server for local
network connections.
Problem: SREA-01 can not be connected to from a remote location
• Make sure that your internet service provider or network system does not block
port 80 from outside. If necessary, configure the SREA-01 to use an alternate web
server port (see section
Webserver on page 72 ) and your firewall to allow traffic to
that port.
• If you are using DHCP, make sure that the IP address of SREA-01 has not
changed automatically.
Problem: Logging in fails
• Make sure that caps lock is turned off.
• Make sure that JavaScript is enabled in your browser.
• Try using Internet Explorer 6 or newer or Mozilla Firefox.
Problem: The drives are not found by SREA-01 or appear as ‘disconnected’
• Check that you have selected the correct physical interface, baud rate and parity
on the Setup – Modbus page. Check that all drives are configured to use the
same baud rate and parity.
• Check the Status page to see if communication works partially or not at all. Check
cabling, terminating resistors and the correct wiring of A/B channels or RX/TX
signals, depending on your setup.
• Check that all drives have different node addresses.