Knowledge
Troubleshooting and Solutions for Solidot EtherCAT Bus Valve Islands: Communication Normal But Solenoid Valves Not Working
Solidot's C2S-EC and C2P-EC series bus valve islands, based on the EtherCAT protocol, are widely used in industries such as food & medical, 3C electronics, photovoltaics, semiconductors, new energy, and automotive due to their excellent ease of use and high performance.
When users operate the C2S-EC & C2P-EC series bus valve islands, after completing the configuration and establishing communication, they often perform signal output tests to check the control of the solenoid valves. Situations may occur where the signal is output but the solenoid valve does not operate. This article details the troubleshooting and solutions for this specific problem.
I. Status Information Confirmation
Ensure the bus valve island is in running status; observe if the UL indicator light is steadily on.
After the signal is output, observe whether the solenoid valve's indicator light illuminates.
II. Status Cause Analysis
UL light is off, possible reasons:
(1) Field side power supply is not connected.
(2) Field power supply has insufficient power or abnormal supply.
Solenoid valve indicator light is off or dim, possible reasons:
(1) Field side power is not connected, unable to supply power to the solenoid valve.
(2) Field switching power supply has insufficient power, preventing the solenoid valve from operating normally.
III. Problem Resolution Methods
Check the field power supply situation and the field side power connections. Wiring diagrams are as follows:
C2S Wiring Diagram
C2P Power Wiring Method
S+ and L+ connect to 24V, S- and L- connect to 0V, PE connects to ground.
If the field power supply has insufficient power or is abnormal, troubleshoot the field switching power supply.
If the field side power supply has insufficient power, the following may occur: the solenoid valve indicator is dim; the indicator lights up after output, but the cylinder does not actuate. Replace the switching power supply with a higher power rating.
The above covers the troubleshooting and solutions for when Solidot EtherCAT protocol bus valve islands have normal communication but the solenoid valves are not working. Thank you for reading.
