Quote:
Originally Posted by Mike Rush
I've been doing this too long to be this frustrated. These single acting valves are driving me crazy. Last year we had the same issue and I ignored it. This this year we need the valve. The code is working, the green light on the relay module lights, the led on the valve lights, there is more than 30psi on port 1 (the input) and I can operate the valve manually but the valve will not switch states electrically. I know, the valve is bad, but two at the same time? I'm just missing something and I'm not sure what...
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Hello Mike,
My name is Troy Sanders, I am the Valve Product Specialist for Festo-US. Our marketing department informed me you were having some issues with the valve we supplied for the FIRST program, which may have already been resolved, but I wanted to offer my assistance anyway. The associated valve kit is located at the link below:
FIRST Valve Assembly/Operating Instructions
First, I would like to clarify that these valves are actually double-acting rather than single-acting since there is a solenoid on either side of the valve which, when actuated, shifts the internal spool. A single-acting valve would have just a single solenoid coil and would be reset to its default state via an internal spring.
Second, referring to either the documentation from the link above or to page 49 of the VUVG’s online catalog located at the link below, the red wire needs to be attached to the 24V power supply as the black wire should be attached to the 0V terminal of the power supply. While viewing the E-box straight on, with the female connector and Festo type code facing you, the left pin, pin 1, is the 0V connection and the right pin, pin 2, is the 24V supply connection. The provided connector’s cable should have the black wire connecting to pin 1 as the red wire should be connecting to pin 2. These e-boxes incorporate a current reduction circuit which allows for power saving, but require the valve to be wired according to specifications; hence, the valve is not bi-polar. Once he valve is provided a proper signal, the LED will turn on and the spool will shift positions.
VUVG Online Catalogue
It appears that you have already solved your issue, but please do not hesitate to ask any additional questions you may have concerning our VUVG valve provided with this year’s FIRST kit.