Newport XPS-D, Руководство для стартапов

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XPS-D Controller Start-Up Manual
6.4 Digital Servitudes (Driver Boards, DRV00P & Analog Encoders
Connectors)
All servitude inputs are TTL compatible:
•
All servitude inputs are not isolated, but are referenced to the electrical ground
(GND).
• Input levels must be between 0 V and +5 V.
All servitude inputs are refreshed synchronously with the XPS servo rate.
All servitude inputs are identical.
All servitude inputs expect normally closed sensors referenced to ground (input is
activated if the sensor is open) and have internal 2.2 kΩ pull up r esistors to the +5 V.
6.5 Analog Encoder Inputs (Analog Encoder Connectors)
6.5.1 Analog Encoder Connector
ANALOG ENCODER
NOTE
Mating connector: Male SUB-D26HD with UNC4/40 lockers.
ENCODER
Pin # Function Pin # Function
1 +5V 14 Home or Limit+
2&3 N.C. 15 /Sine
4 Cosine 16 N.C.
5 Limit or Limit- 17 Index Pulse /I
6 Sine 18 N.C.
7 GND 19 +5V
8 Index Pulse I 20 to 24 N.C.
9 to 12 N.C. 25 GND
13 /Cosine 26 GND
Figure 26: Analog encoders connector.
This connector is used to receive sine/cosine encoder signals.
The sinusoidal position signals, sine and cosine, must be phase-shifted by 90° and have
signal levels of approximately 1 Vpp. Each of these two signals is composed of an
analog sinusoidal signal and its complement entering in a differential amplifier.
Sine, Cosine and Index signals
Analog Sine, Analog /Sine, Analog Cosine and Analog /Cosine inputs are the sine and
cosine information from the encoder glass scale. Levels for these individual signals are
typically 1 Vpp differential signals (maximum 1.2 Vpp) ADC Full Scale, 2.4MHz
maximum input frequency and interpolation at x65536.
Analog Index and Analog /Index inputs are used to receive Index information from the
encoder glass scale.
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