Teco Electro Drives TSTA Series, Installation And Operation Manual

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5-18
5-3-8 Speed Loop Gain
In speed mode there are two speed controller loops,
with separate Gain ( P) and Integral (I) functions.
Speed controllers 1 or 2 can be selected by setting one of the multi- function input terminals,
to selection G-SEL or by setting one of the parameters Cn20-Cn24 as required.
Please refer to section 5-3-11 section B for more details.
Parameter Name Default Unit Setting range
Control
mode
Sn211 Speed loop gain 1 40 Hz 10~450 Pe/Pi/S
Sn212 Speed loop integral time constant 1 100
x0.2
ms
1~500 Pe/Pi/S
Sn213 Speed loop gain 2 40 Hz 10~450 Pe/Pi/S
Sn214 Speed loop integral time constant 2 100
x0.2
ms
1~500 Pe/Pi/S
Diagram below shows the speed controller.
Setting a high speed loop gain or a lower speed loop integral time provides a faster speed control response
time.
For more details refer to section
5-5 .
Kv: Speed Loop Gain (Hz)
S T
1
1 K
i
v
Ti: Speed Loop Integral
Time Constant (sec)