Hardware Inputs for the SCS Controller

General components

Control Probe Calibration Offset

This setting selects the offset amount applied to the Control Probe output to compensate between the measured value and the actual product temperature inside the cabinet.

NOTE: This parameter is not configurable in Field app (under Hardware Set-up)

Control Probe Response

Return Air Temperature Port

This setting selects the Return Air Temperature Probe connection port.

• N.C. = Not Connected
• AD1 – AD4 = Analog or Digital i/p
• AD5^ = Analog or Digital i/p (^ Not available on SCS500 variants)

Only supported by HW: +SCS Adv, +SCS Adv No Display

Condenser Temperature Port

This setting selects the Condenser Temperature Probe connection port. This may also be called the Gas Cooler Probe in CO2 systems.

Ambient Temperature Port

This setting selects the Ambient Temperature Probe connection port.

• N.C. = Not Connected
• AD1 – AD4 = Analog or Digital i/p
• AD5^ = Analog or Digital i/p (^ Not available on SCS500 variants)

Only supported by HW: +SCS Adv, +SCS Adv No Display

Evaporator Coil Temperature Port

This setting selects the Evaporator Coil Temperature Probe connection port.

• N.C. = Not Connected
• AD1 – AD4 = Analog or Digital i/p
• AD5 = Analog or Digital i/p
• AD4_AD5 = Analog or Digital i/p

When AD4+AD5 is selected, the controller evaluates temperature readings from both physical ports (AD4 and AD5) and passes the lowest temperature value to the firmware control logic and telemetry logging. 

Compressor Body Temperature Port

This setting selects the Compressor Body Temperature Probe connection port.

• N.C. = Not Connected
• AD1 – AD4 = Analog or Digital i/p
• AD5^ = Analog or Digital i/p (^ Not available on SCS500 variants)

Only supported by HW: +SCS Adv, +SCS Adv No Display

Compressor Inlet Temperature Port

This setting selects the Compressor Inlet Temperature Probe connection port:

• N.C. = Not Connected
• AD1 – AD4 = Analog or Digital i/p
• AD5^ = Analog or Digital i/p (^ Not available on SCS500 variants)

Only supported by HW: +SCS Adv, +SCS Adv No Display

Door Sensor Port Configuration

This setting selects the Door Sensor connection port. Please also refer to ‘Door Switch State’ (drS).

Doorswitch State

This setting selects the switch state for when the cabinet door is open (so sensor is in free air). Please also refer to “Door Sensor Port Configuration’ (dSC).

• NC(0) = The cabinet door is open when the i/p is short circuited (using Normally Closed switch).
• NO(1) = The cabinet door is open when the i/p is an open circuit (using Normally Open switch). 

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Motion Sensor

Motion Sensor Port Configuration

This setting selects the Motion Sensor connector port. Please also refer to ‘Activity Sensor State’ (SrS).

• N.C. = Not Connected
• AD1 – AD4 = Analog or Digital i/p
• AD5^  = Analog or Digital i/p (^ Not available on SCS500 variants)

Only supported by HW: +SCS Adv, +SCS Adv No Display

Motion Sensor Type

This setting defines which type of motion sensor is being used:

• 0 = Other brand motion sensor
• 1 = AoFrio motion sensor
• 2 = Other brand motion sensor, Activity will not bring the cooler out of standby modes
• 3 = AoFrio motion sensor, Activity will not bring the cooler out of standby modes

Motion sensor requires 3 motion counts in 30 min to exit a standby mode.

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NTC Beta values and Resistance

These settings cover the:

• beta value use in each NTC type
• resistance at 25°C for each NTC type

Two different NTC types can be used simultaneously.

NTC 1 Beta value

NTC 1 Resistance

NTC 2 Beta

NTC 2 Resistance

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NTC type connections to AD ports

These settings determine which NTC type is connected to each AD port. They can be table based or defined by beta value and resistance. 

• 0 = WDTL NTC sensor
• 1 = As per NTC1 Beta and Resistance values
• 2 = As per NTC2 Beta and Resistance values
• 3 = Hot Cabinet (only on AD3)

AD1 NTC Type

AD2 NTC Type

AD3 NTC Type

AD4 NTC Type

AD5 NTC Type