VAT 642 Series - Page 78

INSTALLATION Series
642
78/119 Edition 2017-11-24 742280ED
Example:
Set RAMP MODE of the Fixed 1 pressure controller to the value 0 (fixed time)
Command Pressure
controller
Parameter selection variable Parameter value
s:02
B (a) 02 (bb) 0 (c)
 s:02B020
To optimize Fixed 1 control algorithm, refer to chapter «Tuning of control
performance».
4.8.5.3 Fixed 2 control algorithm
Parameter Command Request Data Type Values
RAMP TIME
Pressure
setpoint ramp
time [s]
Set
s:02C01c
s:02
FLOAT
c = 0.00…1 ’ 000 ’ 000.0
Default is: 0.00
Get i:02C01
i:02C01c
RAMP MODE
Set
s:02C02c
s:02
UINT
c = 0 or 1
0 = constant time
1 = constant slope
Default is: 0
Get i:02C02
i:02C02c
CONTROL
DIRECTION
Set
s:02C03c
s:02
UINT
c = 0 or 1
0 = downstream
1 = upstream
Default is: 0
Get i:02C03
i:02C03c
P-GAIN
Set
s:02C04c
s:02
FLOAT
c = 0.001…100
Default is: 0.1
Get i:02C04
i:02C04c
I-GAIN
Set
s:02C05c
s:02
FLOAT
c = 0…100.0
Default is: 0.1
Get i:02C05
i:02C05c
Explanation: Refer to: «Fixed 1 control algorithm»