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National Instruments FieldPoint FP-QUAD-510, Руководство по эксплуатации

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© 

National Instruments Corp.

9

FP-QUAD-510

Note

If the axis is stopped with the index condition true, 

then reading the status bit causes the bit to reset to 0. 
However, since the index condition is still true, the bit is 
immediately latched back to 1. 

If the Reset on Index attribute (see 

Position Counter Operation

) is 

selected, then the index status bit does not need to be read between 
successive index pulses in order for the position counters to reset. 
The position counters respond to index pulses as programmed 
regardless of the state of the index status bit. 

Isolation and Safety Guidelines

Caution

Before you connect any circuits that may 

contain hazardous voltages to the FP-QUAD-510, 
read the following information.

This section describes the isolation of the FP-QUAD-510 and its 
compliance with international safety standards. The field wiring 
connections are isolated from the

 

backplane provided by the 

terminal base with an optical and galvanic isolation barrier 
designed and tested to provide protection against fault voltages of 
up to 2,500 Vrms. In addition, the FP-QUAD-510 provides double 
insulation (compliant with IEC 1010-1) for working 
common-mode voltages of 250 Vrms. Safety standards (such as 
those published by UL and IEC) require the use of double 
insulation between hazardous voltages and any human-accessible 
parts or circuits.

Never try to use any isolation product between human-accessible 
parts (such as DIN rails or monitoring stations) and circuits that 
may be at hazardous potentials under normal conditions, unless the 
product is specifically designed for such an application, as is the 
FP-QUAD-510.

When you use a product like the FP-QUAD-510 in applications 
with hazardous potentials, follow these guidelines to make sure 
your total system is safe:

•

The safety isolation of the FP-QUAD-510 is from input to 
output, not between channels on the same module. If any of the 
channels on a module are wired at a hazardous potential, make 
sure that all other devices or circuits connected to that module 
are properly insulated from human contact.

•

Do not share the external supply voltages (V and C on the 
terminal base) with other devices (including other FieldPoint 
devices), unless those devices are isolated from human contact.

Содержание FieldPoint FP-QUAD-510

Страница 1: ...10 Features The FP QUAD 510 is a FieldPoint quadrature input module with the following features Four independent 32 bit position counters with individual Phase A Phase B and Index input terminals Velocity measurement capabilities Programmable reset on index mode Sinking inputs compatible with TTL or differential devices Inputs protected to 250 VDC Hot plug and play operation 2 500 Vrms input to ou...

Страница 2: ...on a FieldPoint terminal base FP TB xx unit Because of its hot plug and play operation you can install the FP QUAD 510 onto a powered terminal base without disturbing the operation of other modules or terminal bases Although the FP QUAD 510 receives operating power from the terminal base the input circuitry requires an external power supply To install your module refer to Figure 1 and complete the...

Страница 3: ...ine driver Figure 2 shows the typical encoder wiring for differential signal input Figure 3 shows the typical encoder wiring for single ended signal input Power for a 5 V encoder is also provided for each axis If you require other encoder power voltages reference an external supply to either the C terminal or the COM terminal Figure 2 Basic Field Connections to Differential Encoders Alignment Slot...

Страница 4: ...ex signal must occur when both the Phase A and Phase B signals are low as shown in Figure 4 If the index polarity is inverted try reversing the Index and Index signals on differential encoders or using the Index input on single ended encoders Figure 4 Encoder Signal Phasing Table 1 lists the terminal assignments for the signals of each axis A and A represent the Phase A signals B and B represent t...

Страница 5: ...into a terminal base and apply power the green POWER indicator lights and the FP QUAD 510 informs the network module of its presence When the network module recognizes the FP QUAD 510 it sends initial configuration information to the FP QUAD 510 After receiving this initial information the green READY indicator lights and the FP QUAD 510 is in its normal operating mode Table 1 Terminal Assignments...

Страница 6: ...onsists of a comparator with current limited inputs to convert from a differential to a single ended signal The output of the comparator is used to drive an optoisolator When you apply a voltage above the threshold voltage to the input terminal the comparator turns on the optoisolator registering in the ON state The inputs are designed to be compatible with single ended TTL encoders or differentia...

Страница 7: ...of position the velocity for each axis The four velocity data registers channels 8 through 11 contain 16 bit velocity data for axes 0 through 3 respectively The data in each register represents the velocity of the axis in number of counts per microsecond A positive number indicates motion in the forward direction and a negative number indicates motion in the reverse direction Each register can be ...

Страница 8: ... per millisecond and T is the timebase in microseconds Index Status Channel Operation The FP QUAD 510 includes four discrete input channels channels 12 through 15 which contain the status of the Index signal for axes 0 through 3 respectively This signal is latched to a 1 when the condition at the axis inputs is Phase A 0 Phase B 0 and Index 1 This bit remains latched until it is read at which poin...

Страница 9: ...t fault voltages of up to 2 500 Vrms In addition the FP QUAD 510 provides double insulation compliant with IEC 1010 1 for working common mode voltages of 250 Vrms Safety standards such as those published by UL and IEC require the use of double insulation between hazardous voltages and any human accessible parts or circuits Never try to use any isolation product between human accessible parts such ...

Страница 10: ...nels as accessed through FieldPoint Explorer or other software Table 3 FP QUAD 510 Channel Operation Summary Channel No Channel Description Type Range 0 Axis 0 Position LSW Count Input 0 65535 1 Axis 1 Position LSW Count Input 0 65535 2 Axis 2 Position LSW Count Input 0 65535 3 Axis 3 Position LSW Count Input 0 65535 4 Axis 0 Position MSW Count Input 0 65535 5 Axis 1 Position MSW Count Input 0 655...

Страница 11: ...DC on each input Input bandwidth 250 kHz for each input Encoder frequency 1 million counts second Minimum input pulse width 2 µs Isolation 2 500 Vrms Safety isolation working voltage 250 Vrms designed per IEC 1010 as double insulated External supply voltage V 8 to 30 VDC user provided at 5 W I O supply voltage Vsup 5 VDC at 600 mA maximum Physical Indicators Green POWER and READY indicators Weight...

Страница 12: ... isolation installation category II EMC directive Immunity EN 50082 1 1994 Emissions EN 55011 1991 Group I Class A at 10 m Mechanical Dimensions Figure 7 shows the mechanical dimensions of the FP QUAD 510 installed on a terminal base Dimensions are given in inches millimeters Figure 7 Mechanical Dimensions 4 31 109 5 3 60 91 44 4 22 107 19 ...

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