Before Making A Service Call; Display Of Service Led; Other Problems - Toshiba LONWORKS LIU007Z Instruction Manual

4. Before making a service call

If a problem arises, please see the following trouble-shooting tables. If the problem can not be solved,
please contact a Toshiba distributor.

4.1. Display of service LED

Service LED indicates the condition of nodes.
1
2
3
4
5
6
Power 1
ON
No Phenomenon
Although the inverter is
1
turned on, LED remains OFF.
LED continues to be ON after
2
the inverter is turned on.
LED is ON then OFF when
3 the inverter is turned on, and
it continues to be ON.
4 LED blinks every 0.5 second.
5 LED blinks every 1 second.
LED momentarily turns ON
6
then continues to be OFF.
-
LED Flickers
LED is turned on while
-
pushing service pin.

4.2. Other problems

Phenomenon
No replying from L
communication option
Communication error
in network variable
2 3 4
ON OFF
Check the connection the inverter and the optional unit. If
abnormality is not found after checking, it needs to be repaired.
Internal application program is abnormal.
It needs to be repaired.
A watch dog is suspected. If the same indication appears after
resetting the power, it needs to be repaired.
This is a normal action of the "Unconfigured" device. If the
device is not "Unconfigured", Internal application program is
broken. It needs to be repaired.
When the program is in the condition of "Configured" status, LED
momentarily turns ON when the inverter is turned on. Then the
LED continues to be OFF for some seconds. The node indicates
"Configured" status that means the normal condition.
CPU is abnormal. It needs to be repaired.
Normal operation while pushing service pin.
Check proper termination resister is installed on the network.
W
ON ORKS
(See section 3.5.)
After checking the service LED status, see the previous section.
Remove RS485 communication option from RJ45.
Check the inverter parameter setting (refer to section 3.2).
Check the network cables are not near the power cables.
Continues to be OFF
Continues to be ON
Momentarily OFF then continues to be ON
Repeats ON and OFF
Repeats ON and OFF
Continues to be OFF
Time (second)
5
Problem & Solutions
Problem and Solutions
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E6581371