Specifications
RTS 2nd Generation SERVO AMPLIFIER
62
PVD 3487 GB 03/2004
7.4.7 Adjustment of current limitation curve versus speed I F(n) (R131 -
132)
Resistor R131 is used to select the zero current point on the speed current diagram.
Resistor R132 determines the speed beyond which pulse current (selected by R113) begins
to decrease linearly with speed.
When function I = F(n) is not required :
R131 = 10 KΩ
R132 = 100 KΩ
Nr : speed in thousands of rpm above which
current decreases
Ns : speed in thousands of rpm at which current is
zero
R131 values
Ns
(rpm)
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
7000
R 131
(kΩ)
16.2
82.5
56.2
39.2
33.3
27.4
22.1
20
18.2
16.2
15
13.7
12.1
12.1
+ 15 V
10 K
R 132
- 15 V
R 131
Réduction
de I
I
Ilim
Nr Ns N
Current
reduction