WEG CFW-11 Programming Manual page 252

PID Regulator [46]
P0529 – Process Variable Decimal Point
Adjustable
Range:
Proprieties:
Access groups
via HMI:
Description:
Those parameters define how the process variable (P0040) and the PID Setpoint (P0041) will be shown.
The parameter P0529 defines the number of decimal places after the dot.
However the parameter P0528 must be adjusted in the following manner:
Where: Process V. F. S. Indication = Process Variable Full Scale value, which corresponds to 10 V/20 mA at the
analog input used as feedback.
Example 1 (0 to 25 bar Pressure Transducer – 4 to 20 mA output):
- Desired indication: 0 to 25 bar (F.S.);
- Feedback input: AI3;
- AI3 gain: P0242=1.000;
- AI3 signal: P0243=1 (4 to 20 mA);
- P0529=0 (without decimal place after the dot).
Example 2 (Factory settings):
- Desired indication: 0.0 % to 100.0 % (F.S.);
- Feedback input: AI2;
- AI2 gain: P0237=1.000;
- P0529=1 (one decimal place after the dot).
P0530 – Process Variable engineering Unit 1
Adjustable
Range:
20
P0531 – Process Variable engineering Unit 2
20-12
0 = wxyz
1 = wxy.z
2 = wx.yz
3 = w.xyz
01 PARAMETER GROUPS
46 PID Regulator
Process V. FS Indication x (10)
P0528 =
P0528 =
P0528 =
32 to 127
P0529
Analog input Gain
25 x (10)
0
= 25
1.000
100.0 x (10)
1
= 1000
1.000
Factory 1
Setting:
,
Factory 37
Setting: