WSPC USER INTERFACE Part 2: Administrator Level
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MB Timer 1, 2, 3 OFF – Activates the function when the respective Modbus
Timer signal (1, 2, 3) is ON.
6.5.3 Factory-Defined Output Options (drop-down arrows)
The following options may be selected for a Factory Defined Relay (A – E) by
clicking on the associated drop-down arrow (refer to Figure 6.10):
ON – Turns the relay ON.
OFF – Turns the relay OFF.
Drain – Activates the relay when the Drain solenoid is actuated.
Running – Activates the relay when the compressor is Running.
Enabled – Activates the relay when the compressor is Enabled.
Fault – Activates the relay when a Fault condition occurs.
Warning – Activates the relay when a Warning condition occurs.
Fault or Warn – Activates the relay when either a Fault or a Warning occurs.
Master Enabled – Activates the relay when the controller is enabled as the
Master device in a sequence.
6.5.4 Analog Signal Zero Trims
The Analog Zero Trim settings allow for calibration of various analog inputs.
Refer to Figure 6.10. Analog inputs are assigned to sensors used to measure
specific characteristics of the compressor system. The Analog Signal Zero Trims
function is used to adjust the displayed value of the measurements to equal the
measured value at the analog device.
Section 6.5.9 provides steps on calibrating analog input measurements.
The inputs used vary with compressor models and design. The display will
indicate which sensors are active by indicating their function.
Typical analog input assignments are shown below.
AI0 AI1 AI2 AI3 AI4 AI5 Separator
Temp 1 Temp 2 Temp 3 Sump
Pressure
Line
Pressure
Other
Pressure
(Sump-Line)
Pressure
6.5.5 Maximum User Unload Settings
The Maximum User Unload settings allow the maximum limit to be set for the
compressor unload pressure. These limit the setting for the User-level
adjustment of unload pressure.
Refer to Figure 6.10.
Load/Unload Mode – Sets the maximum Unload pressure limit for the
compressor when the machine is operated in Load/Unload mode.
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