SEW MOVITRAC LTP series, Руководство по эксплуатации

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Operating Instructions – MOVITRAC® LTP
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8
Parameter specifications:
Parameters
8.2.3 User feedback control (PID control)
These parameters are not available in drives with MODBUS software (-xM).
Par. Description Range Default Explanation
P3-01 Proportional gain 0.1 ... 30.0 2 PID Controller Proportional Gain. Higher values pro-
vide a greater change in the drive output frequency in
response to small changes in the feedback signal.
Too high a value can cause instability.
P3-02 Integral time constant 0.0 s ... 30.0 s 1 s PID Controller Integral Time. Higher values provide a
more damped response for systems where the over-
all process responds slowly.
P3-03 Differential time constant 0.00 s ... 1.00 s 0.00 Can be set to zero (disabled) for most applications.
P3-04 PID operating mode 0: Direct
1: Inverse 0 Direct operation: Motor speed increases with an
increase in the feedback signal.
Inverse operation: Motor speed
decreases with an
increase in the feedback signal.
P3-05 PID Setpoint / reference
select 0: Digital
1: Analog 0 Sets the source for the PID reference / setpoint.
0: P3-06 is used
1: Bipolar analog input is used
P3-06 PID digital reference 0 … 100 % 0.0 % Sets the preset digital PID reference / setpoint.
P3-07 PID controller high limit
output P3-08 ... 100 % 100 % Limits the maximum value output from the PID con-
troller.
P3-08 PID controller low limit
output 0 ... P3-07 0.0 % Limits the minimum output from the PID controller.
P3-09 PID output limit / function
control 0: Digital output limits
1: Analog upper limit
2: Analog lower limit
3: PID biploar ana-
log input reference 0 0: PID output range limited by P3-07 & P3-08
1: PID maximum output limited by signal applied to
the bipolar analog input.
2: PID minimum output limited by signal applied to
the bipolar analog input
3: PID output added to speed reference applied to
the bipolar analog input
P3-10 PID feedback source
select 0: 2nd analog input
1: Bipolar analog input 0 Selects the source of the PID feedback signal.
P6..
P60.
P600