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This function block allows the Inverter to be
used in applications requiring a trim to the
setpoint, depending on feedback from an
external measurement device. Typically this
will be used for process control, i.e.
pressure or flow.
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SETUP PARAMETERS
5
FUNCTION BLOCKS
6
SETPOINT FUNCS
7
PID
PID SETPOINT
PID FEEDBACK
PID SP NEGATE
PID FB NEGATE
PID ENABLE
PID INTEGRAL OFF
PID P GAIN
PID I TIME CONST
PID D TIME CONST
PID FILTER TC
PID OUT POS LIM
PID OUT NEG LIM
PID OUT SCALING
PID OUTPUT
PID
PID OUTPUT [320] – 0.00 %
PID ERROR [766] – 0.00 %
0.00 % – [310] SETPOINT
–
0.00% – [764] FEEDBACK
–
FALSE – [763] SETPOINT NEGATE
–
FALSE – [765] FEEDBACK NEGATE –
FALSE – [311] ENABLE
–
FALSE – [312] INTEGRAL DEFEAT
–
1.0 – [313] P GAIN
–
1.00 s – [314] I TIME CONST
–
0.000 s – [315] D TIME CONST
–
2.000 s – [316] FILTER TC
–
100.00 % – [317] OUTPUT POS LIMIT
–
-100.00 % – [318] OUTPUT NEG LIMIT
–
1.0000 – [319] OUTPUT SCALING
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SETPOINT
Range: -300.00 to 300.00 %
An input to the PID block.
FEEDBACK
Range: -300.00 to 300.00 %
An input to the PID block.
SETPOINT NEGATE
Range: FALSE / TRUE
Changes the sign of SETPOINT.
FEEDBACK NEGATE
Range: FALSE / TRUE
Changes the sign of FEEDBACK.
ENABLE
Range: FALSE / TRUE
This parameter globally resets the PID output and integral term when FALSE.
This parameter must be TRUE for the PID to operate.
INTEGRAL DEFEAT
Range: FALSE / TRUE
This parameter resets the PID integral term when TRUE.
P GAIN
Range: 0.0 to 100.0
This parameter is the true proportional gain of the PID controller. With a P gain of zero, the
PID output would be zero.
I TIME CONST
Range: 0.01 to 100.00 s
The integral time constant of the PID controller.
Summary of Contents for 584SV Series
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