Festo EXCM-10-***-E, Translation Of The Original Instructions

Page: 72 / 84

7 Diagnostics
72 Festo – EXCM-10/-30-...-E-EN – 1612b – English
7.4.3 Problems with the Ethernet connection
No connection possible to the controller
The network settings of the controller at delivery can be found at
è
5.2.2 Network settings.
– It may mean the DHCP client on your computer has been deactivated.
Check your TCP/IP settings.
Make sure that the IP address is automatically obtained.
– The controller might not be reachable in your network.
Check the network settings of your computer. Contact your network administrator, if necessary.
Carry out a network scan via the FCT (
è
5.2.2 Network settings).
7.4.4 Other problems and remedies
Problem Cause and remedy
The 7-segments display
does not light up
No logic voltage, or too little, is present.
Check the logic voltage.
Observe the electrical data in the appendix (
è
A.2 Electrical data).
The controller does not
work at all
Short circuit, line interrupt or incorrect pin allocation.
Check all lines and connections as well as the pin allocation.
Observe the instructions in the assembly instructions for the cables
and plugs used.
Burned-through internal fuse: internal short circuit.
Replace the controller completely.
The controller does not
achieve the specified
performance data
Incorrect control signals of the higher-order controller (signals/levels).
Observe the timing diagram (
è
6.2.4 Timing diagram).
Incorrect controller setting.
Observe the information in the online help section of the FCT plug-in for
the correct settings of the controller parameters.
Error in the power supply.
Observe the tolerances of the electrical data in the appendix
(
è
A.2 Electrical data).
Tab. 7.5 Other problems and remedies