Parker NX Series, Техническое руководство

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98 - PVD 3663_GB_NX_March 2017.Docx
3.9. Feedback system
3.9.1. Resolver 2 poles transformation ratio = 0.5
– code A
NX1 NX2 & NX3 NX4, NX6 & NX8
Parker part number 220005P1000 220005P1001 220005P1002
Electrical specification Values @ 8 kHz
Polarity 2 poles
Input voltage 7 Vrms
Input current 70mA maximum 86mA maximum
Zero voltage 20mV maximum
Encoder accuracy
± 10’ maxi
Ratio 0,5 ± 5 %
Output impedance
(primary in short circuit
whatever the position of
the rotor)
Typical 120 + 200j Ω
Dielectric rigidity
(50
– 60 Hz)
500 V
– 1 min
Insulation resistance
≥ 10MΩ ≥ 100MΩ
Rotor inertia ~6 g.cm² ~30 g.cm²
Operating temperature
range
-55 to +155 °C
3.9.2. Hiperface encoder singleturn EKS36 DSL SIL2
– code P
NX1 NX2, NX3, NX4, NX6 & NX8
Model
N/A
EKS36 SIL2 (Sick)
Type Absolute single turn encoder
Parker part number 220174P0011
Electrical interface Hiperface DSL
Position values per
revolution
4096
Integral non-linearity ± 80
’’
Differential non-linearity ± 40
’’
Perating speed 12 000 rpm
Power Supply
Current consumption 7VDC to 12VDC
Max 150mA
Output frequency 0kHz
– 75kHz
Operating temperature
range
-20°C to +115 °C