FANUC Series 30i/300i/300is/31i/310i/310is/32i/320i/320is-MODEL A Additional Manual Page 5

Additional Manual

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FANUC Series 30i/300i/300is/31i/310i/310is/

32i/320i/320is-MODEL A

nalog spindle connection material

-65557EN/01

The position coder generates rectangular wave voltage signals in

proportion to the angle of rotation of the spindle, and is used in feed per

revolution and thread cutting.

(1) 1 rotation of position coder with respect to 1 rotation of spindle

(2) 1 rotation of position coder with respect to 2 rotations of spindle

(3) 1 rotation of position coder with respect to 4 rotations of spindle

(4) 1 rotation of position coder with respect to 8 rotations of spindle. The

figure below shows the timing of the signals generated by the pulse

coder.

Time rules

These are the signal rules that apply to the input pin of the input

connector of the CNC in the figure above.

Because the signal of this connector is in phases A and B and is a

differential input, Td is of interest, which is the duration from point A

when the relative potential difference between PCA and *PCA becomes

0.5 V or higher to point B when the relative potential difference between

PCB and *PCB reduces below 0.5 V. Its minimum is:

Td≥0.65µs

Tp, which is the minimum of one period in each of phases A and B, is:

Td≥4µs

Phase Z signal input

The phase Z signal (one–rotation signal) requires a signal width equal to

or greater than one period of the phase A or B signal.

NOTE

The differential signal is used as the feedback signal from the position coder. *PCA, *PCB and*PCZ refer to

each of their inverted signals.

Td Td Td Td

PCA

1024 pulses/rotation

PCB

1024 pulses/rotation

PCZ

1 pulses/rotation

Rectangular wave of position coder

02 05.06.24 Komaki This page is added.

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NOTE

Above rules limit the maximum spindle speed. But, if an above rule about Td is violated in such a situation that

the spindle motor is vibrating, the displacement of the spindle axis may be caused even when the spindle speed

is lower than the maximum. If this occurs, the cause such as vibration should be removed.

Contents Summary of FANUC Series 30i/300i/300is/31i/310i/310is/32i/320i/320is-MODEL A Additional Manual

Page 1The connection of analog spindle When analog spindle is used, the servo card D11,D12 or D24 is required. These servo cards have analog spindle function. The connectors for analog spindle function are on the CNC main board. Connection diagram MAIN BOARD Analog spindle output A-OUT & HDI(JA40) High-sp
Page 2 Control method and Connector Remarks maximum number of name axes HRV2 HRV3 HRV4 First FSSB line 16axes 10axes 4 axes COP10A-1 On the servo card Second FSSB line 0 axes 2 axes 0 axes COP10A-2 On the servo card Third FSSB line 8 axes 10 xes 4 axes COP10A-3 On the additional axis board
Page 3( ) ( ) 0V 0V ( ) ( ) 0V 0V ( ) ( ) 0V ( ) 0V ( ) 0V 0V NOTE 1. When signals ENB1 and 2 turn off, the spindle command voltage is not valid including CNC’s power ON/OFF moment. Use these signals at an applied voltage of 30 or less when signals ENB1 and 2 are OFF and at a current of 200mA or less when
Page 4NOTE 1 Signals SIN, *SIN, SOUT and *SOUT are for a serial spindle. These signals are not used for an analog spindle. 2 As the connector on the cable side, the solder-type 15 pin connector(FI40B-2015S, or conventional FI40-2015S) manufactured by Hirose Electric cannot be used. 3 The upper connector s
Page 5The position coder generates rectangular wave voltage signals in proportion to the angle of rotation of the spindle, and is used in feed per revolution and thread cutting. (1) 1 rotation of position coder with respect to 1 rotation of spindle (2) 1 rotation of position coder with respect to 2 rotati