Woodward ProAct P Series FL, Инструкция по установке, программированию и устранению неисправностей, Страница: 106 / 110

ProAct P-Series FL Position Controller Manual 26659
96 Woodward
Transfer Function
The ProAct P-Series FL transfer function is nominally four lags and a rate limiter
(see Figure B-1 below). The first lag is an input filter is set at 0.020 seconds, with
a model-dependent slew rate limit. The second lag is set at 0.0033 seconds. The
remaining two lags are scheduled with Inertia Number as shown in the following
tables.
Figure B-1. Transfer Function
Size Rate Limiter
(deg/s)
Model II 2285
Model III 1882
Model IV 941
Table B-1 Rate Limiter Values
Tau_3 Tau_4
Model I, II
Inertia
Number
Model III
Inertia
Number
Model IV
Inertia
Number
0.0040 0.0050 >= 16 >= 17 >= 17
0.0044 0.0063 < 16 < 17 < 17
0.0053 0.0125 < 12 < 13 < 13
0.0063 0.0250 < 7 < 8 < 8
Table B-2 Transfer Function Parameters
Inertia Settings
Inertia=Base_Inertia*1.25^InertiaNumber
The actuator with no load has inertia = Base_Inertia
Size Base_Inertia
Model II 5.5e-4 Kg-m^2 (or N-m-s^2)
Model III 6.4e-4 Kg-m^2
Model IV 8.2e-4 Kg-m^2