ICC
98
9 TROUBLESHOOTING
Although by no means exhaustive, Table 18 provides possible causes behind some of the most common
errors experienced when using the interface card.
Table 18: Troubleshooting
Problem
Symptom
Solution
No communications
between the
interface card and
the inverter
The interface card’s
“MODULE STATUS”
LED blinks red at a
regular interval of
one blink per second
•
Confirm that the inverter is powered.
•
Check the installation and orientation of the option
connection cable (refer to section 2.2).
•
Confirm that the inverter’s station address, baud
rate, protocol etc. function codes are set correctly
(refer to section 3.1).
No communications
between the
network and the
interface card
Communications
cannot be
established, or the
Ethernet “activity”
LED flashes only
infrequently or not at
all
•
Confirm that the interface card is powered (refer to
section 2.3).
•
Confirm that the destination IP address
programmed into the controller equipment or
computer matches that of the interface card, as
displayed by the finder utility.
•
Confirm that the wireless configuration parameters
are correct.
•
Confirm that intermediate firewalls or routers have
been configured to allow access to the interface via
the applicable TCP/UDP ports.
•
If attempting to access the web server on a
computer whose web browser is configured to use
a proxy server, ensure that the proxy server is
accessible to the computer, and that the interface
card is accessible to the proxy server.
Firmware-
generated error
“MODULE STATUS”
LED is flashing red
with an “x-y-z” 3-
blink sequence. The
number of LED
flashes indicates an
error code.
Contact ICC for further assistance.
XML socket
connection failed
Message on a web
server tab
information window
TCP port 2000 is blocked by a firewall, router or some
other intermediate network equipment.
Unable to control
the inverter via
network
communications
Writing to command
and frequency
registers has no
apparent effect on
inverter operation
Confirm that the applicable inverter function codes are
set to allow network control (refer to section 3.2).
