IAI America XSEL-S - Manual (Page 412)

Chapter 7
Troubleshooting
7.1
Action to Be
Taken upon Occurrence of Problem
404
2) LED Check when Connecting Extension I/O Unit (Option)
� Check the LED lamps on the extension I/O unit (option).
Status LED Display 1 Displayed Contents of 6 LED Lamps on Controller
Name Lamp
condition
Color Description
� Green Power ON PWR
× - Power OFF
� Orange Internal power supply
error
PSE
× - Internal power in normal
condition
� Orange � Error in mounted PIO
board
� System abnormality
ALM (Note 1)
× - System Normal
� Orange � Reduction in number
of stations
� IA Net communication
error
C-ERR
× - IA Net communication in
normal condition
� Green IA Net communication in
normal condition with
connected controllers
LINK
× - Communication not
established with
connected controllers
Name Lamp
condition
Color Description
� Green In the normal operation RDY1 to
RDY4 × - � I/O Not to use
� Error
� I/O board not Eqipped
3) If there is/isn’t an alarm generated in host controller (such as PLC)
4) Check the voltage of the main power supply.
5) Check the voltage of the PIO power supply.
6) Check the voltage of theBrake power supply (For the actuator with the brake)
7) Check for the details of the alarm. (Note 1)
For the alarm codes, check on a teaching tool such as the PC software.
8) Disconnection or incomplete connection of connector related components
9) Check on the connection, wire breakage and pinch of cables
When checking the electrical conductivity, cut off the main power of the devices mounted
to this controller (to prevent electric shock) and remove the cables on the measured part
(to avoid conductivity due to sneak circuit) prior to the check.
10) Check the I/O signals.
Check with using a teaching tool such as the host controller (e.g. PLC) or PC software
that there is no inconsistency in the conditions of the input and output signals.
11) Check on noise preventing actions (e.g. connection of ground line, connection of noise
killer, etc.)
12) Review the events leading to the occurrence of a problem, as well as the operating
condition at the time of occurrence. ��������
13) Cause Analysis
14) Treatment
Note 1: Time when an alarm has issued can be checked.
Status LED Display 2
ALM
C-ERR
LINK
Status LEDs
above slots
RDY1 RDY4 �
PWR
PSE