19
Applications
19-14 | CFW700
Table 19.3 :
Selecting the PID action type
Motor Speed
Process Variable
Selection
Increases
Increases
Direct
Decreases
Reverse
This characteristic varies with the process type, but direct feedback is most used.
For temperature control or level process, the selection of the action type will depend on the configuration.
Example: if the inverter runs the motor that removes fluid from the reservoir in a control level, the action type
is reverse as the inverter should increase the motor speed in order to decrease the level of fluid. In case the
inverter is running the motor that is adding fluid in the reservoir, the action type is direct.
P1025 – PID Setpoint via Keypad Keys (HMI)
Adjustable
Range:
0.0 to 100.0 %
Factory
Setting:
0.0 %
Properties:
Access groups
via HMI:
SPLC
Description:
This parameter allows the adjustment of the PID regulator setpoint through the keypad keys, since P1016 = 0
and it is operating in Auto mode. If the operation is in Manual mode, the keypad reference is set in P0121.
The value of P1025 is kept with the last value set (backup) even after disabling or resetting the inverter (with
P1027 = 1 - Active).
P1026 – Automatic Setting of the PID Setpoint via Keypad (P1025)
Adjustable
Range:
0 = Off
1 = On
Factory
Setting:
1
Properties:
cfg
Access groups
via HMI:
SPLC
Description:
When the PID regulator setpoint is done via the keypad (P1016 = 0) and P1026 is 1 (active), when switching from
manual to automatic, the percentage value of the manual setpoint that corresponds to the PID regulator output
from 0.0 to 100.0 % will be loaded at P1025. It avoids PID oscillations when switching from manual to automatic.
Summary of Contents for CFW700
Page 2: ......
Page 4: ......
Page 8: ...Summary...
Page 34: ...2 General Information 2 4 CFW700...
Page 38: ...3 About the CFW700 3 4 CFW700...
Page 56: ...7 Starting up and Settings 7 4 CFW700...
Page 58: ...8 Available Control Types 8 2 CFW700...
Page 78: ...10 VVW Control 10 8 CFW700...
Page 158: ...13 Digital and Analog Inputs and Outputs 13 28 CFW700...
