Ratoc Systems USB-Serial Converter REX-USB60F Uživatelský manuál stáhnout pdf (Strana 51)

3-23

Installation and wiring

3. Installation and wiring

3) Monitor output signal

• Connect a meter (voltmeter) or recorder for monitoring speed detection values

and torque command values as shown in Figure (a) below. Use this signal only for

monitoring and not for commands to other control devices. (Output signal

accuracy is about ±10%.) Each monitor output signal cable should be a shielded,

twisted pair cable with the analog common (L--- connector pin No. 20, 49).

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.)

AO1,

AO2

(a) Monitor output signal connection

D/A converter

Shielded cable

Logic ground

Voltmeter

Connector

case

Robot driver

• The impedance of the load to connect to this monitor signal should be 3k

more.

Do not connect the monitor output signal (AO1, AO2) to the common (L) or

another power supply. The robot driver may fail.

• Electrical specifications for monitor output signals are shown in the following

table.

Item Unit Specifications

Output voltage V 0 to ±3.0

Load impedance k

3.0 or more

Output voltage accuracy % ±10 or more

Output signal delay time ms Approx. 1

1 2 ... 46 47 48 49 50 51 52 53 54 55 56 ... 249 250

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Ratoc Systems USB-Serial Converter REX-USB60F Uživatelský manuál Strana 51