Hardware Outputs for the SCS Controller

These Hardware Set Up parameters define how the peripheral refrigeration system components are connected to the SCS Controller for output control.

Compressor

Compressor Port Configuration

Selects the Compressor connection port:

• C. = Not Connected
• R = 3A Relay o/p
• C = 8A Relay o/p

Compressor State

Selects the Relay state when the Compressor is on. This function is only used when an External Relay is fitted to the Compressor.

• 0 = Normally open (Relay contact open when Compressor is off). Default.
• 1 = Normally closed (Relay contact closed when Compressor is off).

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Evaporator Fan

Evaporator Fan Port Configuration

Selects the Evaporator Fan connection port

• C. = Not Connected
• S1 = 0.4/0.6A Solid State Relay o/p
• S2^ = 0.4/0.6A Solid State Relay o/p (^ Not available on SCS500 variants)
• S1&S2^ = 0.8/1.2A Solid State Relay o/p (^ Not available on SCS500 variants)

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

Evaporator Fan Control Type

Selects whether the Evaporator Fan Port operates as an ON/OFF switch or as a variable speed fan control output.

• on/off = Normal Switch
• Var = Variable Speed Fan Control

Evaporator Fan Direction

Selects the direction of the evaporator fan rotation.

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Condenser Fan

Condenser Fan Port Configuration

Selects the Condenser Fan connection port:

• C. = Not Connected
• S1 = 0.4/0.6A Solid State Relay o/p
• S2^ = 0.4/0.6A Solid State Relay o/p (^ Not available on SCS500 variants)
• S1&S2^ = 0.8/1.2A Solid State Relay o/p (^ Not available on SCS500 variants)

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

Condenser Fan Control Type

Selects whether the Condenser Fan Port operates as an ON/OFF switch or as a variable speed fan control output.

• 0 = Normal Switch
• 1 = Variable Speed Fan Control 

Condenser Fan Direction

Selects the direction of the condenser fan rotation.  

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Defrost

Defrost Port Configuration

Selects the Defrost Coil connection port. This function is only used with a Heated Defrost Cycle. Please also refer to ‘Defrost State’ (dFS).

• NC = Not Connected
• R = 3A Relay o/p
• C = 8A Relay o/p

Defrost State

Selects the Relay state when the Defrost Cycle is off. Please also refer to ‘Defrost Port Configuration’ (dFC).

• 0 = Normally open (Relay contact open when Defrost Cycle not running). Default.
• 1 = Normally closed (Relay contact closed when Defrost Cycle not running).

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5V Port

5V Port Configuration

Enables the 5V output on AD4

• 0 = output disabled
• 1 = continuous 5V output enabled

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Lighting Port Configuration

Selects the lighting connection Port. 

• C. = Not Connected
• R = 3A Relay o/p
• C = 8A Relay o/p
• S1 = 0.4/0.6A Solid State Relay o/p
• S2^ = 0.4/0.6A Solid State Relay o/p (^ Not available on SCS500 variants)
• LE1^ – LE3 = Switched 24V o/p (^ Not available on SCS500 variants)
• AD5^* = Switched 24V o/p (limited by HW to min duty of 5%) (^ Not available on SCS500 variants, * FW versions 1580 onwards)

Channel A

Please also refer to Lighting State - Channel A (LEA).

Channel B

Please also refer to Lighting State - Channel B (LEB). 

Channel C

Please also refer to Lighting State - Channel C (LEC).

Channel D

Please also refer to Lighting State - Channel D (LED).
NOTE: Only supported by HW: SCS Adv, SCS Adv No Display

Channel E

Please also refer to Lighting State Channel E (LEE).
NOTE: Only supported by HW: SCS Adv, SCS Adv No Display. LE1 – LE3 and AD5 = Not applicable

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Light State

Selects the relay state when the port is configured to a digital output and lighting is off.

• 0 = Normally Open (Relay contact open when lights are off) (Switched 24V open when lights are off)
• 1 = Normally Closed (Relay contact closed when lights are off) (Switched 24V closed when lights are off)

When associated lighting channel is configured to an LED channel, this parameter has no effect.

Channel A

Please also refer to the Lighting Port Configuration – Channel A (LCA). 

Channel B

Please also refer to the Lighting Port Configuration – Channel B (LCb).

Channel C

Please also refer to the Lighting Port Configuration – Channel C (LCC).

Channel D

Please also refer to the Lighting Port Configuration – Channel D (LCd).

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

Channel E

Please also refer to the Lighting Port Configuration – Channel E (LCE). 

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