100
10 TROUBLESHOOTING
Although by no means exhaustive, Table 41 provides possible causes behind some of the most common
errors experienced when using the interface card.
Table 41: Troubleshooting
Problem
Symptom
Solution
No communications
between the
interface card and
the inverter
“MODULE STATUS”
LED blinks red at a
regular interval of
one blink per second
•
Check the inverter parameter settings (refer to
section 3).
•
Check the installation and orientation of the option
connection cable.
•
Check the inverter compatibility. Please contact
your local distributor for instructions on checking
the inverter compatibility.
•
If the card is connected in a ring topology, all
devices in the ring must be configured with the
same ring redundancy protocol (i.e. MRP, DLR).
The appropriate ring redundancy protocol must also
be enabled on the card. Otherwise a ring topology
will create an Ethernet loop and result in
undefined/erratic behavior.
“MODULE STATUS”
LED is flashing red.
The number of times
the LED flashes is 7-
1-5.
•
The inverter control board firmware version is not
supported. Please contact your local distributor for
instructions for obtaining a supported inverter.
No communications
between the
network and the
interface card
Communications
cannot be
established, the
Ethernet “link” LED
is off, or the Ethernet
“activity” LED
flashes only
infrequently or not at
all
•
Confirm that the card is running normally (Module
Status LED is not blinking red) and connected to
the local Ethernet network.
•
Ensure that the card is programmed with
compatible network settings. Consult with your
network administrator to determine the compatible
settings.
•
Confirm that the destination IP address
programmed into the controller equipment or
computer matches that of the interface card, as
displayed by the studio.
•
Confirm that intermediate firewalls or routers have
been configured to allow access to the interface via
the applicable TCP/UDP ports.
•
Try a known working Ethernet cable and switch.
•
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.