Hitachi SJ-DN2 Instruction Manual page 26

CHAPTER7 COUNTERMEASURE FOR ABNORMALITY
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
MOD Green
lamp is ON
Green
lamp
goes ON
and OFF
Red lamp
is ON
Red lamp
goes ON
and OFF.
OFF
NET Green
lamp is ON
Green
lamp
goes ON
and OFF
Red lamp
is ON
Red lamp
goes ON
and OFF.
OFF
Explanation
The inverter is in normal condition
The inverter is in standby condition.
An abnormality occurred
impossible to restore.
But except status below.
User initializing with b084 set to 01, 02.
The recoverable state occurred
The inverter is in TRIP condition.
User Initialization
setting of Parameter b084
(In this case, the inverter is not in TRIP
condition, but Red lamp)
Dip SW changed when ON-Line state
Power off
Online state and
established.
Online state and Connection are not
established.
Network abnormality
(Duplicate MACID, Detect Bus-Off etc.)
Timeout communication
Power off / DeviceNet offline
which is Need to fix the inverter.
Refer to inverter instruction manual.
according to the After the initialization,
Green Blink->Green lamp
- In case that SW changing is invalid,
please return to the previous value.
- In case that SW changing is valid,
please Power Reset.
Connection are
Check the followings
Check the followings
22
Countermeasure
-
-
-
-
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Duplicate MACID.
Communication speed.
Cable disconnection.
Connection's fail for connector.
Connection for terminating resistor.
Length of cable
Communication speed.
Cable disconnection.
Connection's fail for connector.
Connection for terminating resistor.
Length of cable.
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