Nidec Control Techniques HVAC Drive H300 HMI Bypass, Installation And Commissioning Manual

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HMI Bypass Controller Installation and Commissioning Guide 21
3.1.3.2 Additional Drive Status
This screen displays the estimated total running cost of the HMI bypass system
and filter change reminders.
Power Consumption : Displays the current power consumption of the VFD.
Power Cost per kWhr : Defines the cost of energy per kWh in cents.
Total Power Consumption : Displays the accumulated VFD power consumption.
Total Running Cost : Uses the Total Power Consumption and Power Cost per
kWhr to calculate Total Running Cost.
3.1.3.3 Trip Log
The previous 5 system faults are recorded and displayed. For accurate
timestamps, the time must be manually set in the HMI settings menu.
Clear Log : Pressing this button will clear the recorded fault list.
• Motor Overload/PL: Motor thermal overload relay (resettable) or phase
loss monitor (if fitted) is tripped connecting 24V to terminal 26 or VFD
parameter 18.035 is set to 1 via serial communications.
Recommended actions:
»
Check Motor
»
Check Insulation, phase to phase, and phase to ground
»
Check Bearings
»
Check Load/transmission
»
Check for Phase loss or phase loss monitor (if fitted)
»
Reduce Starts per hour
»
Check Motor winding configuration (delta or wye)