Ratoc Systems USB-Serial Converter REX-USB60F Manuel d'utilisateur télécharger pdf (Page 52)

Installation and wiring

3-24

3. Installation and wiring

4) Position command signal

• Connect the pulse train signal for position command. As shown in the figure

below, the line receiver receives a pulse train signal output from the line driver

(AM26LS31 or equivalent) of the master controller.

Each position command signal cable should be a shielded, twisted pair cable.

Connect the cable shield to ground (

) on the robot driver side. (The I/O

connector case of the robot driver is internally connected to the ground.)

1507

PLSP,

SIGP

PLSN,

SIGN

Line driver

(AM26LS31)

Shielded cable

Connector

case

Robot driver

• Electrical specifications and timing chart for position pulse signals are shown in

the following table.

Electrical specifications for position command pulses

Item Unit Specifications Condition

Input current of logic 1 mA 8 to 15

Maximum input

pulse rate

(Frequency)

• FWD/REV pulse

input

• Command pulse

+ sign input

pulses/s 2M

Line driver

signal

• Phase difference

90° pulse input

pulses/s 500k

Line driver

signal

1 2 ... 47 48 49 50 51 52 53 54 55 56 57 ... 249 250

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Ratoc Systems USB-Serial Converter REX-USB60F Manuel d'utilisateur Page 52