16
FIX control (fixed value control) setting
0-0 Basic screen
Setting related to multi SV (target set values) for fixed value control
1-0 FIX setting initial screen
Displayed by pressing the
ģ
key on the basic screen.
Fixed value for no programming function.
This setting is done when using multiple target set values (multi SV fixed
value control).
1-1 FIX control ON/OFF switching screen
Displayed only when equipped with programming function.
Can be switched to fixed value control.
Initial value: on
Setting range: on, oFF
On: fixed value control, oFF: Program control
1-2 Execution SV No. setting screen
Displays execution SV No. used by fixed value control.
Initial value: 1
Setting range: 1–2
1-3 Target set values SV1 setting screen
Sets target set values used by fixed value control.
Initial value: 0
Setting range: Within SV limiter range
1-4 Target set values SV2 setting screen
Same as 1-3 screen above except SV2 instead of SV1.
Sets target set values used by fixed value control.
1-5 Ramp higher limit value setting screen
Sets incremental ramp value (RAMP Up).
Initial value: oFF
Setting range: oFF, 1–9999 digits
Sets variation (incremental value) so that changing SV No. does not
cause a sudden change of load and gradually changes the target value.
1-6 Ramp lower limit value setting screen
Sets decremental ramp value (RAMP Down).
Initial value: oFF
Setting range: oFF, 1–9999 digits
Sets variation (decremental value) so that changing SV No. does not
cause a sudden change of load and gradually changes the target value.
1-7 Ramp unit setting screen
Sets ramp value unit.
Initial value: SEc
Setting range: SEc, min
1-8 Ramp ratio setting screen
Sets ramp ratio.
Initial value: ×1
Setting range: ×1 (i), ×0.1 (ri)
PID setting
PID setting screen group
With the SRS0 Series, you can have 2 types of PID constants.
In the case of fixed value control (FIX), target set values SV1 and
SV2 correspond to PID1 and PID2 respectively.
In the case of program control, an execution PID No is allocated to
each step.
1-0 FIX setting initial screen
Pressing the
ģ
key on the 1-0 screen switches to the PID setting
screen.
2-0 PID initial screen
There are no setting items for this screen. Pressing the
Å
key
displays the initial setting screen, “2-1 Output PID1 proportional band (P)
setting screen.”
Pressing the
Ģ
+
Å
keys displays the last screen, “2-16 Output
PID2 higher limit output limiter setting screen.”
2-1 Output PID1 proportional band (P) setting screen
Initial value: 3.0 (%)
Setting range: oFF, 0.1–999.9 (%)
There is basically no need to set if auto tuning (AT) is executed.
For information on proportional band, see 8-2, section (1).
If oFF is set, ON-OFF (2 position) action is set.
2-2 Output PID1 hysteresis (dF) setting screen
Initial value: 20 (digit)
Setting range: 1–999 (digit)
Sets “hysteresis” for ON–OFF action.
Displayed if P = oFF is set on 2-1 screen.
2-3 Output PID1 integral time (I) setting screen
Initial value: 120 (seconds)
Setting range: oFF, 1–6000 (seconds)
There is basically no need to set if auto tuning (AT) is executed.
For information on integral time, see 8-2, section (2).
This screen is not displayed when P = oFF.
2-4 Output PID1 derivative time (D) setting screen
Initial value: 30 (seconds)
Setting range: oFF, 1–3600 (seconds)
There is basically no need to set if auto tuning (AT) is executed.
This screen is not displayed when P = oFF.
For information on derivative time, see 8-2, section (3).
2-5 Output 1 PID1 manual reset (MR) setting screen
Initial value: 0.0 (%)
Setting range: -50.0–50.0 (%)
Conducts offset correction for when I = oFF. (P/PD action)
This screen is not displayed when P = oFF.
For information on manual reset, see 8-2, section (4).
2-6 Output PID1 target set value function (SF) setting screen
Initial value: 0.40
Setting range: oFF, 0.01–1.00
Used for suppressing overshoot and undershoot for expert PID.
Overshoot for SF = 1.00 is minimal. With SF = oFF, there is
ordinary PID action without expert PID. This screen is not
displayed when P = oFF.
For information on target set value function (SF), see 8-2, section (5).
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