2. Expanded Functions
PID algorithm: |
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∆ MVn = KP⋅ (∆ Pn+ ∆ | I+n∆ |
MVn = MVn − 1± ∆ MVn | |
Here, |
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∆ Pn = en− | en − 1 |
en = SVn− | PVn |
∆ In = | en ⋅ ∆ t + Ir |
| TI |
Dn)
(If GP ≠ 0, Gap is applied)
(If TI = 0, ∆ In = 0)
∆ Dn = | TD ⋅ (PVn − 1 − PVn)− | ∆ ⋅t Dn − +1 Dr | |
∆ t + η ⋅ | TD | ||
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Dn = Dn − 1+ ∆ Dn
η= 01. (Fixed)
Parameter details
A | Process input value PVC (0.00 to 100.00 %) | Data range: 0 to | 10000 | |||||||||||||||||
A+1 | Auto mode set value ASV (0.00 to 100.00 %) | Data range: 0 to | 10000 | |||||||||||||||||
A+2 | Cascade mode set value CSV (0.00 to 100.00 %) | Data range: 0 to | 10000 | |||||||||||||||||
A+3 | Manual mode MV MMV | Data range: | ||||||||||||||||||
A+4 | MV tracking input TMV | Data range: | ||||||||||||||||||
A+5 | Mode setting MODE |
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| Operation mode |
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| 00 : Manual mode | ||
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| 01 : Auto mode | ||
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| 10 : Cascade mode | ||
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| 11 : (Reserve) |
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| Tracking designation | ||
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| 0 : No |
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| 1 : Yes |
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B | Proportional gain KP (0.00 to 327.67) |
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| Data range: | 0 to | 32767 | ||||||||||||||
B+1 | Integral time TI (0.000 to 32.767 min., stop if TI = 0) | Data range: | 0 to | 32767 | ||||||||||||||||
B+2 | Derivative time TD (0.000 to 32.767 min.) | Data range: | 0 to | 32767 | ||||||||||||||||
B+3 | Gap | Data range: 0 to | 1000 | |||||||||||||||||
B+4 | Auto mode initial set value ISV (0.00 to 100.00 %) | Data range: | 0 to | 10000 | ||||||||||||||||
B+5 | Input filter constant FT (0.000 to 0.999) | Data range: | 0 to | 999 | ||||||||||||||||
B+6 | ASV differential limit DSV (0.00 to 100.00 %/∆ t) | Data range: | 0 to | 10000 | ||||||||||||||||
B+7 | MMV differential limit DMMV (0.00 to 100.00 %/∆ t) | Data range: | 0 to | 10000 | ||||||||||||||||
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