Lumel RE72 User Manual

Also see for re72 series: Quick start manual User manual User Manual & Quick Start User Manual & Quick Start Quick start

Lumel RE72 User Manual Manual pdf 41 page image

4141P ID 1 . . . P I D 4P ID 1 . . . P I D 4P ID 1 . . . P I D 4P ID 1 . . . P I D 4P ID 1 . . . P I D 4PVczasFig. 20. “Gain Scheduling” switched over foreach segment in the programmed control8.5. Control of Heating-cooling TypeFor the heating-cooling control, one of the outputs out1…out3should be set to y, one of the outputs out1…out3 should be set toCool and the displacement zone Hn for cooling should be configured.For the heating loop, the PID parameters should be configured:pb, ti, td , for the cooling loop the PID parameters: pbC, tiC, tdC.The parameter pbC is defined as the ratio of the pb parameter from therange 0.1....200.0 %.The pulse period for logic outputs (relay, SSR) is set independentlyfor the heating and cooling loops (depending on the output, these areto1 … to3).If there is the need to use the PID control in one loop andthe ON-OFF control in the other loop, one output should be set to PIDcontrol and the other one upper relative alarm.time