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Caledon Controls Ltd
LSC2 Staging / Load Sequencing Controller
The LSC2 load sequencing controller is designed for use with a large process heating system which is split into several banks of heaters, all of which apply heat input to the same heating load. The staging controller balances the required heating demand by switching on the number of stages (heater banks) which most nearly match the demand, and modulating one additional stage to make up the difference. Versions are available with combined relay + logic outputs and all logic outputs. A single analogue output is also provided. Relay + logic types are used with contactor stages + 1 modulating thyristor stage; all logic outputs are used when all the stages are controlled by thyristors. The analogue output may be used to drive one modulating thyristor which accepts a standard analogue input signal if preferred.
The staging technique provides the following advantages:-
The new LSC2 controller is based on our successful CU02 controller, and includes additional features which have been incorporated over time in various versions of the CU02 controller. It also offers isolated digital inputs and outputs and additional digital inputs to simplify the provision of 'special' versions if required.
More detailed product information is available on our downloads page
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