Table 254: Error Code 3, Explanation Of Blink Codes And Procedures For - WAGO I/O SYSTEM 750 Manual

WAGO-I/O-SYSTEM 750
750-8208 PFC200 CS 2ETH RS CAN DPM
Table 254: Error Code 3, Explanation of Blink Codes and Procedures for Troubleshooting
Error
Argument
--
Manual
Version 1.1.0, valid from FW Version 02.06.20(09)
Cause
Internal data bus
communication error;
defective I/O module
cannot be identified
Solution
If a power supply module (e.g., 750-602)
is connected to the controller, ensure that
this module functions properly (see
Section "LED Signaling"). If the supply
module does not exhibit any errors/faults,
the I/O module is defective. Identify the
defective I/O module as follows:
- Switch off the power supply.
- Place the end module in the middle
of the I/O modules connected to the
system.
- Switch the power back on.
- If the I/O LED continues to flash red
switch off the power supply again
and place the end module in the
middle of the first half of the I/O
modules (toward the controller).
If only one I/O module is left and the
LED continues to flash, either this
module or the controller internal data bus
interface is defective. Replace the
defective module or the controller.
- If the LED is no longer flashing,
switch off the power supply and
place the end module in the middle
of the second half of the I/O modules
(away from the controller).
- Switch the power back on.
- Repeat this procedure until you
establish which I/O module is
defective. Then replace that module.
Diagnostics 387