when we install new VFD controller , the HMI Graph do not change from scada that time . so we reinstall old VFD controller again. now this DTW in normal Operation.



when we install new VFD controller , the HMI Graph do not change from scada that time . so we reinstall old VFD controller again. now this DTW in normal Operation.
Problem: SCADA always showing HI signal. Problem found: 1 NOS float switch problem found. A good sensor in HIHI position is replaced with…
problem found: IRP-1 Backwash holding tank -A pump’s cable terminal box gets short circuit & burn. For instance, a fault signal came in…
Unable to take LIT, due to keep heavy machinery in DTW compound. We collect Electronic PIT, Manual Pressure Gauge. And disconnect power supply…
VFD modbus interrupt problem found. Than reset the VFD.
New parameter setting on an old ultrasonic level transmitter and installing complete. now sand filter “E” is normal. SCADA value & field value…