Master Enable: Master Enablement which permits all Control Processes

Enable Tracking: Enables NREL SPA to calculate solar position – used only for debugging

Enable 2 Motor Run: When not enabled, only 1 motor is permitted to run at a time. This allows lower power requirements.

Enable Wind: When enabled, allows tracker to stow in a safe position when wind exceeds a pre-set speed

1 Axis Operation: When enabled only Axis 1 (Altitude) is permitted to run.

Disable Auto/Manual Switch: This temporarily disables the field Auto/Manual Switch to allow GRIDview emergency control

Disable Time (5-40 min.): Configure diablement time. valid range: 5 – 40 minutes

Relay Reverse Delay (sec): Time pause when motor changes direction in seconds

Control Type: Altitude 0-90 deg. defined in software

Enable Inclinometer: Analog Inclinometer enabled. Hall Pulses counts are the default setting.

Sensor Type: Reflects Inclinometer / Hall Pulses selection

Enable Solar MEMS: Enables use of Sun Sensor for higher accuracy

Enable MEMS Modbus: Enables Solar MEMS Modbus Transfers

Enable Min LS Calibration: Enables recalibration when Minimum Limit Switch is contacted

PPR 360 deg (Hall): If Hall Pulses input is selected, enter total pulse counts for 360 degree rotation

Inclinometer Source: If Inclinometer input is selected, enter Source based on signal type 1 = 4-20mA 2 = 0-5Volts 3 = 0-10Volts

Inclinometer Scale: If Inclinometer input is selected, enter Scale for full output

Inclinometer Offset: If Inclinometer input is selected, enter offset to zero output

Control Dead Band (deg): Enter desired accuracy for tracking. When the position of the tracker vs. solar position exceeds this the controller will command a move. This value may be fractional in degrees but may cause overshoot and hunting on brush motors or can cause the motor to exceed manufacturer’s duty cycle limits if set too low.

Min Limit Switch Cal (deg): Value in degrees to which tracker will re-calibrate when the minimum Limit Switch is contacted.

Soft Limit Minimum (deg): Value in degrees to which tracker will stop moving (Down). The value should be lower than the minimum Limit Switch so not inpede travel but act as a safty stop if the Limit Switch fails. Valid

Soft Limit Maximum (deg): Value in degrees to which tracker will stop moving (Up). The value can be before or after than the maximum Limit Switch so to act as a safty stop if the Limit Switch fails.

Night Stow Position): Position in degrees where the tracker will move for wind or other saftey purposes. This can be achieved Manually by enabling the stow command or automatically if Wind Safty Stow is set up with an annemometer

Force Pv: Changes the calculated tracker position in degrees if not moving. -99.900 indicates last input was implemented. Valid range must be between soft limits

Sensor Type: Reflects Hall Pulses selection

Enable Solar MEMS: Enables use of Sun Sensor for higher accuracy

Enable MEMS Modbus: Enables Solar MEMS Modbus Transfers

Enable Min LS Calibration: Enables recalibration when Minimum Limit Switch is contacted

PPR 360 deg (Hall): If Hall Pulses input is selected, enter total pulse counts for 360 degree rotation

Control Dead Band (deg): Enter desired accuracy for tracking. When the position of the tracker vs. solar position exceeds this the controller will command a move. This value may be fractional in degrees but may cause overshoot and hunting on brush motors or can cause the motor to exceed manufacturer’s duty cycle limits if set too low.

Min Limit Switch Cal (deg): Value in degrees to which tracker will re-calibrate when the minimum Limit Switch is contacted.

Soft Limit Minimum (deg): Value in degrees to which tracker will stop moving (Down). The value should be lower than the minimum Limit Switch so not inpede travel but act as a safty stop if the Limit Switch fails. Valid

Soft Limit Maximum (deg): Value in degrees to which tracker will stop moving (Up). The value can be before or after than the maximum Limit Switch so to act as a safty stop if the Limit Switch fails.

Night Stow Position): Position in degrees where the tracker will move for wind or other saftey purposes. This can be achieved Manually by enabling the stow command or automatically if Wind Safty Stow is set up with an annemometer

Force Pv: Changes the calculated tracker position in degrees if not moving. -99.900 indicates last input was implemented. Valid range must be between soft limits

Longitude: Observer longitude (negative west of Greenwich) valid range: -180 to 180 degrees

Elevation (m): Observer elevation [meters] valid range: -6500000 or higher meters

Temperature (C): Annual average local temperature [degrees Celsius] valid range: -273 to 6000 degrees Celsius

Atmos. Pressure (mb): Annual average local pressure [millibars] valid range: 0 to 5000 millibars

Slope Angle (deg.): Surface slope (measured from the horizontal plane) valid range: -360 to 360 degrees

Refraction: Atmospheric refraction at sunrise and sunset (0.5667 deg is typical) valid range: -5 to 5 degrees

Rotation (deg.): Surface azimuth rotation (measured from south to projection of surface normal on horizontal plane, negative east) valid range: -360 to 360 degrees

Reset Default Location: Returns to factory location (Los Angeles) – all existing data will be lost