Owner’s Manual
BWC EXCEL 10 Turbine
Page 21
display and the inverter. Check for bad cable connection.
OV Power Limit
The inverter has detected that the output voltage is approaching
the over voltage limit and is reducing its output to compensate for
the less than ideal current carrying ability of grid connection.
Using the Up and DOWN arrows you can scroll through the additional Powersync II
information available, as shown below.
Parameter
Description
Grid Voltage
Magnitude of the connected single phase grid voltage
Grid Frequency
Frequency of the connected single phase grid voltage
Bus Voltage
Magnitude of the DC link bus voltage
DC Current
Averaged value of the DC current
Turbine Volts
Averaged value of the rectified DC voltage from the Input
Output Power
Output power displayed in Watts
Accumulated Energy
Output Energy (kW hours) accumulated over time of operation
VREF
Used for factory/installer setup
IREF
Used for factory/installer setup
Last Fault
Displays the last fault that occurred since the inverter was
powered up along with a fault code that may be useful when
troubleshooting.
Unit Code Rev
Indicates the firmware revision of the control DSP
Disp Code Rev
Indicates the firmware revision of the LCD display DSP
A hidden feature of the display is the contrast adjustment. The right side of the display
has invisible up and down arrows that can be used to increase and decrease the
contrast of the display.
Grid Voltage
This the voltage measured line to line on the output of the inverter. The voltage must be
between 212 to 264Vac (184 to 228Vac for 208V units) for the inverter to operate. The
line to neutral voltage is important as well, although it is not reported on the LCD
screen. It must be between 106 and 142Vac for both 240V and 208V units.
Grid Frequency
This is the frequency of the grid and determined by the utility. The frequency must be
between 59.4 and 60.4 Hz for the inverter to operate.
Bus Voltage
This is the voltage of the boosted DC link bus that is used to generate the output sine
wave. This voltage should stay between 200 and 570 Vdc but will not trip off until it
reaches 680Vdc.
