6-5
6 Troubleshooting and Maintenance
CJ-series User Defined CAN Unit Operation Manual for NJ-series CPU Unit (W517)
6-2 T
ro
u
b
lesho
o
tin
g
with
th
e User De
fined
CAN
Unit
Ind
icato
rs
6
6-
2-2 ERR
LED Indicato
r
6-2-2
ERR LED Indicator
Indicator Status
Unit Status
Comments
Color
Status
Red
OFF
No error active
The unit has no active error and diagnostic
functions do not detect any error condition.
ON
One of more of the following errors are
active:
•
Hardware error
•
No CAN configuration
•
CAN network power fail, Unit is Bus off
•
Fatal error in Unit
•
CPU Watchdog Time-out
•
PC21 bus error
•
Cyclic refresh time-out
•
I/O table error
•
Make sure that the unit is wired and
mounted correctly, switch the power on
or wait until the unit is initialized.
•
Configure the Unit.
•
Correct the CAN network, restore the
power on the network.
•
Create the CPU I/O table.
•
Make sure the Cyclic refresh is enabled
•
Restart the Unit
If problem persists, contact a local Omron
representative.
6-2-3
Two 7-segment Display
Two 7-segment Display
Color
Status
Unit Status
Comments
Red
All Off
No power or in ST1 or ST2 Make sure that the unit is wired and mounted correctly,
switch the power on or wait for unit to initialize.
Configure the User Defined CAN Unit with message com-
mands.
Displays
FF
State is ST3 or ST4
If unit is not configured, then configure the unit with mes-
sage command 2902. When unit already has a configura-
tion, enable communication by turning ON
*_EnblCANComm
. This enabling is confirmed when
*_EnblComm
is set.
Displays
00
State is ST5
CAN messages can be sent and received
Flashes
01
CAN Bus power fail
Restore power on the CAN bus
Flashes
02
CAN Bus off
Check the CAN network
Displays
H1
ST1 (PC21 Startup error)
Create I/O table or change the unit number.
Displays
EC
ST1 (PC21 Startup error)
Create I/O table or change the unit number.
Flashes
EC
ER2
Create I/O table, change the unit number.
Summary of Contents for CJ1W-CORT21
Page 2: ......
Page 140: ...Appendices A 6 CJ series User Defined CAN Unit Operation Manual for NJ series CPU Unit W517...
Page 141: ...Index 1 CJ series User Defined CAN Unit Operation Manual for NJ series CPU Unit W517 I Index...
Page 144: ...Index 4 CJ series User Defined CAN Unit Operation Manual for NJ series CPU Unit W517 Index...