WEST 8800 - Y - off Controller; 2-Point Controller with Pre-Contact

4.5.6
∆ - Y - Off controller / 2-point controller with pre-contact
ConF / Cntr: SP.Fn = 0 set-point controller
C.Fnc = 2 ∆ -Y-Off controller
C.Act = 0 inverse action
(e.g. heating applications)
ConF / Out.1: O.Act = 0 action Out.1 direct
Y.1 = 1 control output Y1 active
Y.2 = 0 control output Y2 not active
ConF / Out.2: O.Act = 0 action Out.2 direct
Y.1 = 0 control output Y1 not active
Y.2 = 1 control output Y2 active
PArA / Cntr: Pb1 = 1...9999 proportional band 1 (heating)
in units of phys. quantity (e.g. °C)
ti1 = 0,1...9999 integral time 1 (heating) in sec.
td1 = 0,1...9999 derivative time 1 (heating) in sec.
t1 = 0,4...9999 min. cycle time 1 (heating)
SH = 0...9999 switching difference
d.SP = -1999...9999 trigg. point separation suppl. cont.
∆ / Y / Off in units of phys. quantity
PArA / SEtP: SP.LO = -1999...9999 set-point limit low for Weff
SP.Hi = -1999...9999 set-point limit high for Weff
Configuration level
8800 process controller 57 Configuration examples
InH.1InL.1
SP.LO SP
SP.Hi
Out.1Â
InP.1Ê
100%
0%
PB1
Out.2Â
d.SP
SH