Calculated Industries 6250 Guide de l'utilisateur télécharger pdf (Page 74)

6250 Servo Controller User Guide

PLC Interface

The 6250's optically-isolated programmable I/O may be connected to most PLCs with discrete

inputs and outputs.

Changing inputs from

sourcing to sinking.

The PLC should be able to sink at least 1mA of current on its outputs. For +5VDC

operation, the programmable outputs may be pulled up to +5VDC using the programmable

output pull-up (OUT-P) on the AUX connector; the programmable inputs are pulled up to +5V

by connecting the IN-P terminal to the +5V terminal on the AUX connector. If you wish to

have the inputs sink current instead of source current, you can connect IN-P to GND.

For voltages up to 24VDC, an external power supply may be used to bias the inputs and

outputs (refer to Chapter 8 for specifications).

For higher current or voltages above 24VDC, you must use external signal conditioning such

as OPTO-22 compatible I/O signal conditioning racks. Contact your local Compumotor

distributor for information on these products.

Certain PLCs have open-emitter outputs. To wire this type of output to an input on the

6250, an external resistor must be wired between the input connection and ground (see

illustration below). This provides a path for current to flow from the PLC when the output is

active.

6250

PLC

Typical value for R = 450Ω (assuming Rplc = 0)

Note: The value of R may vary depending on the value of Rplc and Vplc

Out 5-24 Volts

GND

74HCTxx

6.8 KΩ

47 KΩ

Input

Connection

Ground

Connection

Vplc

Rplc

Output

Ground

+5VDC

On the A UX c onnector, y ou can

sink current on the inputs by

connect ing IN-P t o GND instead

of to +5V.

GND

IN-P

+5V

GND

Pulled up

to +5VDC

(

sourcing

)

Joystick Interface

The 6250 has three 8-bit analog input channels (CH1 - CH3). The analog inputs are

configured as three discrete single-ended inputs, with an input range of 0.0V to 2.5V. These

inputs can be used to control an axis with a joystick. The voltage value on the analog inputs

can be read using the ANV or TANV commands. Refer to Chapter 3 for connection procedures.

The Daedal JS6000 joystick is compatible with the Compumotor 6250. To order the JS6000,

contact Daedal at (800) 245-6903 or contact your local distributor.

Joystick control can be achieved by simply connecting a joystick potentiometer to one of the

analog inputs. Joystick operation is enabled with the JOY1 command.

Travel limitations in potentiometers and voltage drops along the cables may make it

impossible to achieve the full 0.0V to 2.5V range at the joystick input. Therefore, you must

configure the 6250 to optimize the joystick's usable voltage range. This configuration will

affect the velocity resolution. The velocity resolution is determined by the following

equation:

maximum velocity set with the JOYVH or the JOYVL command

voltage range between the joystick's no-velocity region (

center deadband

) and its maximum-velocity region (

end deadband

)

1 2 ... 69 70 71 72 73 74 75 76 77 78 79 ... 137 138

Commentaires sur ces manuels

Pas de commentaire

Calculated Industries 6250 Guide de l'utilisateur Page 74

Commentaires sur ces manuels

Produits connexes et manuels pour Pompes à eau Calculated Industries 6250