Vertical gate movement is made via chain hoist system which is driven by gear box and induction motor. We measure vertical gate position by using Absolute Multiturn encoder which will be installed on the motor or the gear box depending on mechanical arrangements can be made at site.Central Controls team will install encoder on non-driving end of motor or gearbox.
Local display will also be installed on local control panel. Encoder calibration will be conducted at site and analogue output of 4…20 mA will be calibrated according to gate top and low level. b. Local panel will be programmed to display gate height as well it will retransmit gate position data via analogue output to the SCADA system or DCS