摘要 |
A control system for a load ( 10 ), the system comprising a first microprocessor ( 16 ) having an output to drive one side of a load ( 10 ), a second microprocessor ( 18 ) having an output to drive the other side of the load ( 10 ), the system being arranged so that when either microprocessor detects a fault in the control of the load ( 10 ) the load ( 10 ) is switched off.
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