Shuntme
Member
- Location
- San Diego California
- Occupation
- Instrument Control Tech
Replacing a hydraulic 24" vertical Sluice Gate controls with an electric actuator. Hydraulic specs was 6in/min travel. New actuator(re-purposed) cycle time is much slower in the 10min range. Full open and full close limits are set correctly and Open and Close indications are also set correctly. Problem is the PLC is so outdated connection to it to change the cycle time is virtually out of the question. PLC is looking for the Open or Close indication with a 4min cycle time and the electrical actuator cycle time being 10min, the PLC shuts it down after 4min timeout either way and to continue the cycle I have to reset the command switch.
Is there an alternative solution if I can not access the PLC to increase the cycle time to 10minutes. Upgrading the PLC is not an option at this time as it is an RTU that controls other SCADA communications. Your ideas most welcome.
Thank you
Is there an alternative solution if I can not access the PLC to increase the cycle time to 10minutes. Upgrading the PLC is not an option at this time as it is an RTU that controls other SCADA communications. Your ideas most welcome.
Thank you