---
title: Optimize your cooler's power use with Standby Modes for temperature
description: You can set Standby Modes with a SCS Controller to intelligently reduce your cooler’s power use. Find out more in this article about the specific parameters for temperature control.
---
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October 1, 2026
# Optimize your cooler's power use with Standby Modes for temperature
## You can set Standby Modes with a SCS Controller to intelligently reduce your cooler’s power use. Find out more in this article about the specific parameters for temperature control.
**Standby Set Point (SSP)**
This is the temperature when the cooler's compressor turns off when the system is running in Standby Mode.
The Standby Modes are a sequence of settings that progressively conserve power during prolonged periods of inactivity. The multi-step process meets two requirements; it conserves power and it brings the product in the cooler cabinet back to the correct temperature as quickly as possible when sales activity restarts.
| **Digital display** | **Increments & units** | **Parameter range** | **Default** |
| --- | --- | --- | --- |
| SSP | 0.1 °C | -10.0 to 20.0 | 8.5 °C |
---
**Standby Differential (Sd)**
This is the temperature above the Standby Set Point (SSP) temperature, which causes the compressor to turn on when it is in Standby Mode. The compressor remains on until the temperature reaches the Standby Set Point (SSP) temperature.
Compressor turn on temperature = SSP + Sd
| **Digital display** | **Increments & units** | **Parameter range** | **Default** |
| --- | --- | --- | --- |
| Sd | 0.1 °C | 0.1 to 10.0 | 2.0 °C |
---
**Perishable Mode (Per)**
This mode is designed for certain food stuffs and medicines, such as those under HACCP regulations that. If this function is set to ‘on’, all Temperature and Evaporator settings will use the Normal Mode values to maintain the temperature at the Operational Set Point (SP) temperature.
All other parameters (such as Lights and Display) will use the Transition Mode and Standby Mode settings.
Note: The pulldown time will be overridden to zero, as the product will remain at temperature.
- **oFF** = No product temp alarms. Product set point is controlled by the current Mode settings (Normal, Transition1-3 and Standby).
- **on** = No product temp alarms. Product set point during Transition and Standby Modes is controlled by Normal Mode settings.
- **on+auto(1)** = Auto clear alarming. This is the same as “on” but with high and low temperature alarming available. The alarm code on display can be manually cleared (display temperature) or will auto clear when the cooler cabinet is back within temperature range
- **on+manual(2)** = Manual clear alarming. This is the same as “on” but with high and low temperature alarming available. The alarm code on display can only be manually cleared (display temperature).
You can clear high and low temp alarm codes (display temperature) from the display by holding the left and right button keys on the SCS Controller for 5secs. The alarm symbol always shows the actual alarm state.
| **Digital display** | **Increments & units** | **Parameter range** | **Default** |
| --- | --- | --- | --- |
| Per | text | on or off | off |
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