2) Setting of SV limits (Group 2-12)
Higher limit (SV Limt_H) and lower limit (SV Limt_L) of setting range for set value (SV) can be set.
Note 1: Remote SV value is also subject to SV limits.
3) Setting of selection/switch of multi-SV No. (Group 2-12)
(This screen is not displayed unless external input/output control signal (DI/DO) is added. When MODE 0 or MODE 1 has been selected in
6-1. 4) Setting of mode, this screen is not displayed either.)
It can be selected whether multi-SV No. is selected by means of front key (KEY) or externally (EXT).
When SV Select: KEY is set
Select SV No. by using front key in the monitor group screen (Group 0-0).
When SV Select: EXT is set (ESV lamp in front panel lights.)
Select SV No. externally.
Matters Related to Remote Setting
4) Setting of remote bias (Group 2-13A)
Remote bias corrects error in remote set input value.
5) Setting of remote filter (Group 2-13A)
If remote input has noise, unstable remote SV indication may produce an adverse effect on control result. A remote filter is used to reduce such
effect and stabilize control.
Filter operation is carried by linear delay operation.
Time constant T (sec.) = set value
××
sampling cycle of remote input (sec.)
From the above equation, T = 300
×
1/3 = 100 sec.
Thus, remote filter with a time constant of 100 sec. maximum is applied. Accordingly, the larger the set value, the longer the time constant and the
more effectively noise can be removed.
It should be noted, however, that too large a time constant may have a detrimental effect on the result of control in highly rsponsive control system.
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Setting range:
Initial value:
SV Limt_L: 0.000
°
C
SV Limt_H: 50.000
°
C
SV Select: KEY
SV Limt_L: 0.000
°
C
SV Limt_H: 50.000
°
C
SV Select: KEY
SV Limt_L; Lower limit value of measuring range
SV Limt_H; Higher limit value of measuring range
Within measuring range but SV Limt_L < SV Limit_H
Setting range: KEY, EXT
Initial value: KEY
SV Limt_L: 0.000
°
C
SV Limt_H: 50.000
°
C
SV Select: KEY
Setting range: -9999~9999 unit
Initial value: 0 unit
REM Bias: 0.000
°
C
REM Filt: OFF
REM Sc_L: 0.000
°
C
REM Sc_H: 50.000
°
C
↓
Setting range: OFF, 1~300
Initial value: OFF
REM Bias: 0.000
°
C
REM Filt: OFF
REM Sc_L: 0.000
°
C
REM Sc_H: 50.000
°
C
↓
Summary of Contents for SR253 Series
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