WAGO -I/O-SYSTEM 750 Technical Description page 71

Fault code 4: "Internal bus physical fault"
Fault argument
Fault code 5: "Internal bus initialization fault"
Fault argument
Fault code 6 " Project engineering node configuration fault "
Fault argument
Fault code 9 "CPU-TRAP error"
Fault argument
WAGO-I/O-SYSTEM 750
CANopen
Fault description
- Error in internal bus data com-
munication or interruption of the
internal bus at the coupler
n* Interruption of the internal bus
th
after the n
Fault description
n* Error in register communication
during internal bus initialization
Fault description
n Wrongly configured I/O module
in the Spacer module mapping.
Fault description
1 Illegal Opcode
2 Stack overflow
3 Stack underflow
4 NMI
Fieldbus Coupler 750-337, 750-338
Trouble shooting
Turn off the power supply of the
node. Place an I/O module with
process data behind the coupler
and note the error argument after
the power supply is turned on. If
no error argument is given by the
I/O LED, replace the coupler.
Otherwise detect faulty I/O mod-
ule as follows: turn off the power
supply. Place the end module in
the middle of the fieldbus node.
Turn the power supply on again.
– If the LED is still blinking, turn
off the power supply and place the
end module in the middle of the
first half of the node (towards the
coupler).
– If the LED doesn't blink, turn off
the power supply and place the end
module in the middle of the second
half of the node (away from the
coupler).
Turn the power supply on again.
Repeat this procedure until the
faulty I/O module is detected.
Replace the faulty I/O module.
If there is only one I/O module left
but the LED is still blinking, then
this I/O module or the coupler is
defective. Replace defective com-
ponent.
Turn off the power supply of the
process data module. node, exchange the (n+1)
data module and turn the power
supply on again.
Trouble shooting
Turn off the power supply of the
node and replace n
module and turn the power supply
on again.
Trouble shooting
Check the Spacer module mapping.
Trouble shooting
Program sequence fault.
Please contact the WAGO I/O
Support.
• 71
Fieldbus Coupler
th
process
th
process data