Grundfos CIM 500

6.3 EtherNet/IP
You can detect faults in a module by observing the
status of the two status LEDs.
The prerequisite is that CIM 500 is fitted in a
Grundfos product or in a CIU 500.
Ensure that SW1 is in position "3".
6.3.1 Both LEDs remain off
Both LEDs remain off when the power supply is connected.
Cause Remedy
The module is fitted incorrectly in the Grundfos
product.
• Check that the module is fitted and connected
correctly
.
The module is defective. • Replace the module.
CIU 500 is defective. • Replace CIU 500.
6.3.2 LED1 is off
Cause Remedy
SW1 is not set correctly. • Set the switch to "3".
6.3.3 LED2 is flashing red
Cause Remedy
No internal communication between the module and
the Grundfos product.
• Check that the module is fitted correctly in the
Grundfos product.
No internal communication between CIU 500 and the
Grundfos product.
• Check the cable connection between the Grundfos
product and CIU 500.
•
Check that the individual conductors are connected
correctly, for example, not reversed.
• Check the power supply to the Grundfos product.
6.3.4 LED2 is permanently red
Cause Remedy
The module does not support the connected
Grundfos product.
• Contact the nearest Grundfos company.
6.3.5 LED1 is flashing red
Cause Remedy
Connection time-out.
• Verify the connection and communication between
PLC and CIM 500.
6.3.6 LED1 is permanently red
Cause Remedy
IP address conflict. • Check the IP address configuration.
SW1 is in illegal position. • Check that SW1 is set to "3".
6.3.7 LED1 is permanently red and green at the same time
Cause Remedy
Error in firmware download. • Use the webserver to download the firmware again.
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