−40−
7. 7 The example of temperature control adapting Communication
transmission and Remote
7.7.1 Temperature Control for Multi Zone
A master LT8 controller sends SV with the communications transmission and slave LT8 controllers
receive it with the communications remote.
Since there is no error of an analog part, accurate remote control can be performed. With the remote
shift function, temperature slope can be programmed at multiple zones.
7.7.2 Zone Control In A Soaking Pit
A master LT8 controller located in the middle sends PV by the communications transmission, and
slave LT8 controllers located at both sides receive the PV as SV by the communications remote. This
results in a control with superior characteristics in soaking.
LT8 (Slave)
SV remote LT8 (Master)
LT8 (Slave) SV remote
Zone 1
Zone 2
Zone 3
F.C.E.
〜
F.C.E.
〜
F.C.E.
〜
Sensor
Sensor
Sensor
Zone 1
Zone 4
Zone 3
Zone 2
LT8 (Slave)
〜
Sensor
Sensor
Sensor
Sensor
LT8 (Master)
LT8 (Slave)
LT8 (Slave)
F.C.E.
〜
F.C.E.
〜
F .C.E.
〜
F.C.E.
SV
transmission
SV remote
SV remote
SV remote
PV
transmission
