Specifications

RTS 2nd Generation SERVO AMPLIFIER
58
PVD 3487 GB 03/2004
Symbols used
Nn = rated speed of application for 10 V reference speed
Ilim = maximum pulse current of motor
Imax = maximum pulse current of servo amplifier
In = maximum rated current of motor
Ket = gradient of tachometric generator in V per thousands of rpm
Ke = back electromotive force of motor in volts per rpm
r = resistance of motor and its supply circuitry in ohms
L = inductance of motor in mHenrys
Ub = bus voltage in volts (1.35 x Vin AC)
T
Tachy
+ X1/1
- X1/2
100 K
100 K
2.2 nF
R 104
100 K
100 K
2.2 nF 200 K 1nF
200 K
1nF
U - RI
O
I
S3
Sélection TACH
Y
ou U - RI
7.4.1 Tachometric generator voltage calibration (R104)
Resistor R104 is used to adapt the tachometric generator gradient to that of the servo amplifier
(2V/1000 rpm).
Ket 2 3 4 5 6 8 10 12 15 20
R 104 (kΩ) ∞
200 100 68 51 33 24 20 15 11
Do not exceed 100V on the tachometer input.
For a gradient of 1 V / 1000 rpm, short-circuit the solder tags Y1 and Y2 with R104 =
∞.
Standard tachometric generator values are :
3 V at 1 000 rpm e.g. TBN 103
6 V at 1 000 rpm e.g. TBN 206
20 V at 1 000 rpm e.g. TBN 420
These values are plated of tachometric generator. e.g.
Ke : 6 mVrpm or 6 V at 1000 rpm
TACHO selection
or U-RI
Tacho