HSD ES779 - Encoders

7 Operation and regulation
HSD S.p.A. © - h0106k01a.fm120718
145
Thermometer tolerance classes at PT 100 resistance for classes A and B according to
IEC 60751
7.9 Encoders
Certain electrospindles are equipped with encoders; check the Technical data sheet supplied for
presence and type.
The encoder produces an incremental coding of the position value detected with signals A and B
(A inverted and B inverted) in phase quadrature; it also provides the Zero and inverted Zero
signals (see the figures below
).
The signals are shown on the outside, as explained in section 5.8 “Electrical connections”.
The following encoder models are available:
 Lenord+Bauer “square wave” encoder;
 Lenord+Bauer sinusoidal wave encoder.
Tolerance
Class A Class B
Temperature (°C) + / - °C + / - Ohm + / - °C + / - Ohm
-200 0.55 0.24 1.3 0.56
-100 0.35 0.14 0.8 0.32
0 0.15 0.06 0.3 0.12
100 0.35 0.13 0.8 0.30
200 0.55 0.20 1.3 0.48
300 0.75 0.27 1.8 0.64
400 0.95 0.33 2.3 0.79
500 1.15 0.38 2.8 0.93
600 1.35 0.43 3.3 1.06
650 1.45 0.46 3.6 1.13
700 / / 3.8 1.17
800 / / 4.3 1.28
850 / / 4.6 1.34