Grundfos RSI - Page 109

8.1.14 Group 3.13: PID Controller
Group 3.13.1: Basic Settings
Code Parameter Min Max Unit Default ID Description
P3.13.1.1 Gain 0.00 1000.00 % 100.00 118
If the value of the parameter is set to
100 % a change of 10 % in the error
value causes the controller output to
change by 10 %.
P3.13.1.2 Integration Time 0.00 600.00 s 1.00 119
If this parameter is set to 1,00 s a
change of 10 % in the error value
causes the controller output to
change by 10.00 %/s.
P3.13.1.3 Derivation Time 0.00 100.00 s 0.00 132
If this parameter is set to 1,00 s a
change of 10 % in the error value
during 1.00 s causes the controller
output to change by 10.00 %.
P3.13.1.4 ProcessUnitSel. 1 38 1 1036 Select unit for actual value.
P3.13.1.5 ProcessUnitMin Varies Varies Varies 0 1033
Value in Process units at 0 %
feedback or setpoint.
This scaling is done for monitoring
purpose only. The PID controller still
uses the percentage internally for
feedbacks and setpoints.
P3.13.1.6 ProcessUnitMax Varies Varies Varies 100 1034 See above.
P3.13.1.7 ProcessUnitDeci 0 4 2 1035
Number of decimals for process unit
value
P3.13.1.8 Error inversion 0 1 0 340
0 = Normal (Feedback < Setpoint ->
Increase PID output)
1 = Inverted (Feedback < Setpoint ->
Decrease PID output)
P3.13.1.9 Dead Band Varies Varies Varies 0 1056
Dead band area around the setpoint
in process units.The PID output is
locked if the feedback stays within the
deadband area for a predefined time.
P3.13.1.10 Dead Band Delay 0.00 320.00 s 0.00 1057
If the feedback stays within the dead
band area for a predefined time, the
output is locked.
Group 3.13.2: Setpoints
Code Parameter Min Max Unit Default ID Description
P3.13.2.1 Keypad SP 1 Varies Varies Varies 0 167
P3.13.2.2 Keypad SP 2 Varies Varies Varies 0 168
P3.13.2.3 Ramp Time 0.00 300.0 s 0.00 1068
Defines the rising and falling
ramp times for setpoint
changes. (Time to change from
minimum to maximum)
P3.13.2.4 SP Boost Activat. Varies Varies DigIN Slot0.1 1046
FALSE = No boost
TRUE = Boost
P3.13.2.5 Setpoint Selection Varies Varies DigIN Slot0.1 1047
FALSE = Setpoint 1
TRUE = Setpoint 2
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