West Control Solutions N8800 - Manual (Page 54)

4.5.3 3-point controller (relay & relay)
ConF / Cntr: SP.Fn = 0 set-point controller
C.Fnc = 3 3-point controller (2xPID)
C.Act = 0 action inverse
(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)
Pb2 = 1...9999 proportional band 2 (cooling)
in units of phys. quantity (e.g. °C)
ti1 = 0,1...9999 integral time 1 (heating) in sec.
ti2 = 0,1...9999 derivative time 2 (cooling) in sec.
td1 = 0,1...9999 integral time 1 (heating) in sec.
td2 = 0,1...9999 derivative time 2 (cooling) in sec.
t1 = 0,4...9999 min. cycle time 1 (heating)
t2 = 0,4...9999 min. cycle time 2 (cooling)
SH = 0...9999 neutr. zone 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
Configuration examples 54 8800 process controller
InH.1 InL.1 SP.LO SP SP.Hi
Out.1Â
InP.1Ê
100%
0%
100%
0%
PB1 PB2
Out.2В