Rockwell-automation 1746-QV QUICK START OPEN-LOOP VELOCITY Manual do Utilizador descarregar pdf (Página 2)

Open-loop Velocity Control Module2

Publication

174610.1 - may 1997

Connect Module Output Terminals to Output Devices Chapter 4

1746QV

Output

Terminal Block

Analog Output

10v dc)

Diff.

Input

Outputs

to valves

Servo Amplifier

(Proportional)

(+)

(-)

To solenoid A

To solenoid B

+24V dc PS

0V dc PS

Important:

Connect the shield of the amplifier

output cable to a 0V connection in the amplifier

Do not connect the shieled to earth ground.

Minimize Interference from Electrical Noise with Correct Shielding and Grounding Chapter 4

Important:

Connect the following to earth ground: a) cable shields (except for amplifier output cable) at

one end only, b) input terminal 4, c) case grounds of PS and amplifier, e) LDT flange.

1746QV

Module

LDT

and Hydraulic Ram

Analog Output

Valves

Servo

Proportional

Amplifier

LDT

Signals

24V PS

15V PS

earth ground

(-) (+)

(+) (C) (-)

Output

Input

Belden

8761

Belden

8761

Case

GND

Case

GND

Cable

Note

Cable

Note

Cable Note: Use cable

recommended by the LDT

and amplifier manufacturer

Belden

8770

58

LDT

Power

Pistontype Hydraulic Cylinder and

Linear Displacement T

ransducer (LDT)

Case

GND

Important:

For correct bonding,

connect PS output commons together

and isolate from earth ground.

Operate the Module for the First time Chapter 5

After

loading extend and

retract profiles (step 1), alternately run the extend profile (O:e.0/0 = 0to1), then

the retract profile (O:e.0/1 = 0to1). Modify a profile to reach the preset reference, and set it.

Important:

If motion is reversed: for a

10V dc output, change the sign (

) of all extend/retract voltage

values; or for a +10V output, energize the other solenoid on the directional valve (with ladder logic).

To do this: Enter decimal: at address:

load all profiles

1 N7:40

set preset reference to zero

8 N7:50

clear errors

16 N7:50

read current position

read, only

N7:61

AllenBradley, a Rockwell Automation Business, has been helping its customers improve

productivity and quality for more than 90 years. We design, manufacture and support a broad

range of automation products worldwide. They include logic processors, power and motion

control devices, operator interfaces, sensors and a variety of software. Rockwell is one of the

world's leading technology companies.

Worldwide representation

AllenBradley

Headquarters, 1201 South Second Street, Milwaukee, WI 53204 USA, T

el: (1) 414 3822000 Fax: (1) 414 3824444

Publication 174610.1 - may 1997

Supercedes

174610.1 - August 1996

PN95512942

, Inc. Printed in USA

1 2

Worldwide representation 2

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