West Control Solutions KS 92-1 - Manual (Page 47)

4.4.4 Heating and cooling with constant period ( CyCl= 3 )
1 and t2 are met in the overall output
range . To prevent unreasonably short
pulses, parameter
tp is used for adju-
sting the shortest pulse duration. With
small correcting values which require a
pulse shorter than the value adjusted in
tp, this pulse is suppressed. However,
the controller stores the pulse and totali-
zes further pulses, until a pulse of dura-
tion
tp can be output.
Parameters to be adjusted: t1 : Min. cycle time 1 (heating) [s]
( PArA/ Cntr) t2 : min. cycle time 2 (cooling) [s]
tp: min. pulse length [s]
Configuration level
KS 90-1 / KS 92-1 47 Switching behaviuor
50%
50%
t1 t2 /
tp
tp
30%
70%
20%
80%
10%
90%
t1 t2 /