SMC Networks EX500 - Manual (Page 40)

EX500 Serial System EX## - OME0008
- 39 -
・ ・・ ・ DeviceNet communication
NO. Item Remedies
1 The status of MS LED
Operating in a normal condition
: Green lights
Recoverable fault
( Memory is abnormal ) : Red lights ・ Check the signal line from PLC is properly connected.
( Refer to section 5 -2 )
・
Check Wiring and pin out.
( Refer to section 3 -2, 3 -6 -1 )
・
Check communication speed and Address setting switch
are correctly set.
( Refer to section 5 -4 )
2 The status of NS LED
Not online : Lights off
Online , Not Allocated
: Green flashing
Online , Allocated : Green lights
Connection Time - Out
: Red flashing
Critical Link Failure : Red lights ・ Check the signal line from PLC is properly connected.
( Refer to section 5 -2 )
・
Check wiring and pin out.
( Refer to section 3 -2, 3 -6 -1 )
・
Check communication speed and Address setting switch
are correctly. ( Refer to section 5 -4 )
3 SOL LED lights off. ・ Check power supply to make sure that 24VDC is supplied
to solenoid valve. ( Refer to section 9 -1 )
・
Check power supply to solenoid valves is not less
than 20VDC.
・ ・・ ・ PROFIBUS-DP communication
NO. Item Remedies
1 RUN LED lights off. ・ Check the power supply is supplying 24V DC.
( Refer to section 9 -1 )
2 BF LED lights. ・ Check the signal line from PLC is properly connected.
( Refer to section 6 -2 )
・
Check wiring and pin out.
( Refer to section 3 -2 )
・
Check Address setting switch is correctly set.
( Refer to section 6 -4 -1 )
・
Check the terminating resistance is correctly set.
( Refer to section 6 -4 -2 )
3 DIA LED lights. ・ Check the power supply for the solenoid valve is supplying.
( Refer to section 9 -1 )
・
Check the power supply for the solenoid valve is not less
than 20VDC.
4 SOL LED lights off. ・ Check the power supply for the solenoid valve is supplying.
( Refer to section 9 -1 )
・
Check the power supply for the solenoid valve is not less
than 20VDC.
This technical instruction manual is the day of March, 2001 present one.
Specifications are subjected to change without any notice. Manufacture does not assume any liability
arising out of application of any product specified in this manual.