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INSTALLATION
State of System
Inverter power off
Network Power on
Network and inverter
power on.
Connection not yet
established by host
Network and inverter
power on.
Connection
established by host
Connection Time-Out
Critical Link failure
Note:
When using complex software in the master, the rate of
connections and disconnections may be too fast for the user
to follow the network status in detail by simply watching the
LED.
LED
Notes
Condition
Off
Turn inverter power on. Option unit
will then complete duplicate station
number test
Flashing
The option unit has powered up
Green
successfully and determined that its
station number does not conflict
with other stations. However, a host
has not yet established a
communication link.
Green
A master device on the network has
designated the option unit for
communication. LED holds this
state during communication also.
Flashing
Master designated option unit for
Red
communication (LED Green state),
but then sent no messages within
the time limit set in the expected
packet rate. Check to see that host
station has not been disconnected
from the network.
Red
Failed communication device.
network not connected or severed.
network.
from this fault
- 8 -
Duplicate station number
Network power off.
Cable from option unit to
Option unit is only node on
Network damaged.
Must cycle power to recover
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