CHAPTER7 COUNTERMEASURE FOR ABNORMALITY
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7.4 LED display and Countermeasure
Following states are indicated by module LED and Network LED.
MOD (Module status) LED: It indicates Inverter condition.
NET (Network status) LED: It indicates Network condition.
LED
Color
Explanation
Countermeasure
MOD
Green
lamp is ON
The inverter is in normal condition
-
Green
lamp
goes ON
and OFF
The inverter is in standby condition.
-
Red lamp
is ON
An
abnormality
occurred
which is
impossible to restore.
But except status below.
User initializing with b084 set to 01, 02.
Need to fix the inverter.
The recoverable state occurred
The inverter is in TRIP condition.
Refer to inverter instruction manual.
User Initialization according to the
setting of Parameter b084
(In this case, the inverter is not in TRIP
condition, but Red lamp)
After the initialization,
Green Blink->Green lamp
Red lamp
goes ON
and OFF.
Dip SW changed when ON-Line state
- In case that SW changing is invalid,
please return to the previous value.
- In case that SW changing is valid,
please Power Reset.
OFF
Power off
-
NET
Green
lamp is ON
Online
state
and
Connection
are
established.
-
Green
lamp
goes ON
and OFF
Online state and Connection are not
established.
-
Red lamp
is ON
Network abnormality
(Duplicate MACID, Detect Bus-Off etc.)
Check the followings
Duplicate MACID.
Communication speed.
Cable disconnection.
Connection’s fail for connector.
Connection for terminating resistor.
Length of cable
Red lamp
goes ON
and OFF.
Timeout communication
Check the followings
Communication speed.
Cable disconnection.
Connection’s fail for connector.
Connection for terminating resistor.
Length of cable.
OFF
Power off / DeviceNet offline
-