Specifications

RTS 2nd Generation SERVO AMPLIFIER
63
PVD 3487 GB 03/2004
R132 values
% of maximum current
Ns - Nr 20 40 60 80 100
500
1000
1500
2000
2500
3000
3500
4000
27.4 k
Ω
12.1 k
Ω
8.25 k
Ω
6.81 k
Ω
5.62 k
Ω
4.75 k
Ω
3.32 k
Ω
3.32 k
Ω
47.5 k
Ω
22.1 k
Ω
16.2 k
Ω
12.1 k
Ω
10 k
Ω
6.82 k
Ω
6.82 k
Ω
5.62 k
Ω
100 k
Ω
33.2 k
Ω
22.1 k
Ω
18.2 k
Ω
15 k
Ω
10 k
Ω
10 k
Ω
8.25 k
Ω
82.5 k
Ω
47.5 k
Ω
33.2 k
Ω
22.1 k
Ω
18.2 k
Ω
15 k
Ω
13.7 k
Ω
12.1 k
Ω
121 k
Ω
56.2 k
Ω
39.2 k
Ω
27.4 k
Ω
22.1 k
Ω
18.2 k
Ω
16.2 k
Ω
15 k
Ω
7.4.8 Calibration of function U - RI (R133 - R134)
This adaptation is necessary even when operating with a tachogenerator to ensure tacho safety:
speed signals from "U - RI" and from the tacho are compared constantly and must be of the
same order of magnitude.
EMF per 1000 rpm : The electromotive force constant KE indicates the voltage measured on the
armature for an off-load speed of 1000 rpm, at 25°C. Under load, for agiven
voltage, motor speed will be:
I = current between terminals in Amps
R = armature resistance in Ohms
U = voltage across terminals in Volts
K
E = EMF constant in Volts per 1000 rpm
N = U - (RI)
x 1000
K
E