20-79 PID Autotuning
Option: Function:
This parameter starts the PID autotuning sequence. Once the autotuning
has successfully completed and the settings have been accepted or re-
jected by the user, by pressing [OK] or [Cancel] buttons on the keypad at
the end of tuning, this parameter is reset to [0] Disabled.
[0] * Disabled
[1] Enabled
20-81 PID Normal/ Inverse Control
Option: Function:
[0] * Normal
Normal
[0] causes the frequency converter’s output frequency to de-
crease when the feedback is greater than the setpoint reference. This is
common for pressure-controlled supply fan and pump applications.
[1] Inverse
Inverse
[1] causes the frequency converter’s output frequency to in-
crease when the feedback is greater than the setpoint reference. This is
common for temperature-controlled cooling applications, such as cool-
ing towers.
20-82 PID Start Speed [RPM]
Range: Function:
Applica-
tion de-
pend-
ent*
[Application dependant] When the frequency converter is first started, it initially ramps up to this
output speed in Open Loop Mode, following the active Ramp Up Time.
When the output speed programd here is reached, the frequency con-
verter will automatically switch to Closed Loop Mode and the PID Con-
troller will begin to function. This is useful in applications in which the
driven load must first quickly accelerate to a minimum speed when it is
started.
This parameter will only be visible if par. 0-02
Motor Speed Unit is set to [0],
RPM.
20-83 PID Start Speed [Hz]
Range: Function:
Applica-
tion de-
pend-
ent*
[Application dependant] When the frequency converter is first started, it initially ramps up to this
output frequency in Open Loop Mode, following the active Ramp Up
Time. When the output frequency programd here is reached, the fre-
quency converter will automatically switch to Closed Loop Mode and the
PID Controller will begin to function. This is useful in applications in
which the driven load must first quickly accelerate to a minimum speed
when it is started.
This parameter will only be visible if par. 0-02
Motor Speed Unit is set to [1],
Hz.
20-93 PID Proportional Gain
Range: Function:
0.50* [0.00 - 10.00 ]
How to program the Frequency Converter
6-52 BAS-SVX19C-EN