33
B
ef
or
e staring
Installation
Op
er
ation
Sp
ecifications
● Input correction (BS)
Parameter to be set when temperature correction to Process value (PV) is required
Reading can be expressed as addition of reading before input correction and set value of input
correction.
● Reference junction compensation (RJC)
When using temperature sensor as TC, as a principle, PV is expressed by correcting standard
contact point correction. To verify TC and RJC individually, corresponding parameter can be used.
● Limit to Set value (SV) by Set Value High (SVH) and Set Value Low (SVL)
SV is limited by SVH and SVL. Limited set value can be changed within the range of input type.
● Limit to Process value by Full Range High (FRH) and Full Range Low (FRL)
Set High and Low range of process value (PV). If it is out of the set range, OVER of alarm group 1
of CHESTS (channel status) is occurs. The control is operating normally.
● Input scale range high (SLH) / scale range low (SLL) setting
It applies only if input type is set to voltage input (DCV).
The input range of PV is adjusted to the high limit or low limit of set scale.
● Input filter (FL)
Parameter to remove noise when it comes in to Process value (PV) repetitively. Noise not only
impairs control feature, but also causes surge in manipulated value. However, if input filter is set
large, actual reading is expressed with time delay.
※ PV : Process value
PV_1 : Previous Process value
FL : Input filter (FL) set value
Ts : Sampling time (50 ms)
PV Filter
Input
Filtering
PV =
+ PV_1
PV - PV_1
FILT / Ts +1
Filtering input
● Parameter setting lock (LOCK)
This is a parameter that prohibits parameter setting.
LOCK set value
Details
0
All parameters setting possible
1
Possible to set only SV, R/S, AT, CHEN parameters
2
All parameters settings are impossible,
but LOCK parameter is possible to set.
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