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RV Series Automated Dispensing Systems 103 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide. AppendixA, Command Function Refer ence (cont…

RV Series Automated Dispensing Systems

102 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.

AppendixA, Command Function Reference

(continued)

Circle 3 Point

Click Function

Double-click

address and

select from drop-

down menu

Used in tandem with the Circle Run command when a circle is too large to ﬁt in the Secondary View

screen (in the CCD Mode). A larger circle can be created by entering three (3) Circle 3 Point commands,

one for each “corner” of the circle. The system uses the three Circle 3 Point commands to calculate the

entire circumference of the circle. The Circle Run command dictates where the circle starts and how many

degrees the circle will be. The correct sequence of commands is: three (3)Circle 3 Point commands followed

by one (1) Circle Run command.

Circle Run

Click Function

Double-click

address and

select from drop-

down menu

Used in tandem with the Circle 3 Point command when a circle is too large to ﬁt in the Secondary View

screen (in the CCD Mode), adjusts the Start Angle and Total Degrees of the large circle.

Parameter Description

Start Angle The angle (in degrees) from the center of the circle where the start of the circle begins. The

default of 0 degrees equates to the 3:00 position.

Default: 0 (degrees)

Range: 0 to 360

NOTES:

• You can enter a negative value. For example, if you enter -90, the circle start point will be

the 12:00 position.

• You can also enter a value greater than 360, but if you do so, the robot compensates for

the larger value. For example, if you enter 400, the circle start point will begin at the 40

degree mark.

Total Degree The angle (in degrees) after the Start Angle value at which dispensing stops.

Default: 0 (degrees)

To dispense in a counterclockwise direction, enter a negative value.

NOTE: You can enter a value greater than 360. For example, if you enter 720, the Z axis

head will loop twice.

Dispense Dot

Click Function

Registers the current XYZR location as a Dispense Dot point.

RV Series Automated Dispensing Systems

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AppendixA, Command Function Reference

(continued)

Dispense Dot Setup

Click Function

Sets how the system dispenses a dot of ﬂuid.

Parameter Description

Valve On Time How long the dispenser stays open (in seconds).

Dwell Time Delay time (in seconds) that occurs at the end of dispensing to allow the pressure to equalize

before the tip moves to the next point.

Head Time Delay time (in seconds) that occurs at the beginning of dispensing.

Dispense End Setup

Click Function

After dispensing a dot or line, it is often required to raise the tip a short distance at a slow speed. This allows the

ﬂuid to cleanly break free from the tip to prevent it from being incorrectly applied. The parameters for Dispense

End Setup affect how far and how fast the tip raises after dispensing.

Parameter Description

Retract Low Speed The speed (inmm/s) at which the tip raises after dispensing.

Range: 0–150mm/s

Retract High Speed After the tip raises the amount speciﬁed by Retract Distance at the speed speciﬁed by

Retract Low Speed, the tip continues raising to the Z-clearance height at the speed

(inmm/s) speciﬁed by this setting. The purpose of specifying a Z-clearance height is to

allow the tip to raise high enough to clear any obstacles it encounters on the way to the

next point.

Range: 0–150mm/s

Retract Distance The distance (inmm) the tip raises after dispensing.

Z Clearance

Retract

High Speed to

Z Clearance

height

Retract

Distance at

Retract Low

Speed

Example illustration of Dispense End Setup

RV Series Automated Dispensing Systems

104 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.

Dispenser Off / Dispenser On

Click Function

Turns the dispenser OFF or ON at the current address.

NOTE: This command is useful when you want to turn off (deactivate) dispensing for part of a line. To do

so, determine the beginning and end points where you want the line to be deactivated and then insert a

Dispenser Off command in between those points. When you want the line to be active, insert a Dispenser

On command between those points. An example program and the resulting pattern is shown below.

Original program and corresponding Path view

Program with Dispenser On / Dispenser Off commands and an example of the resulting dispense pattern

NOTE: The Path view in the

Secondary View screen will NOT

change when you add the Dispenser

Off / Dispenser On commands as

shown in this example; this image is

only a representation of the resulting

dispense pattern.

NOTE: This image is the actual

Path view of the example program

shown.

Dummy Point

Click Function

Registers the current XYZR location as a Dummy point. The dispensing tip passes through this point. A dummy

point is useful for avoiding obstacles on the workpiece.

Parameter Description

Speed The speed (inmm/s) at which the tip moves toward the dummy point.

Range: 0–150mm/s

AppendixA, Command Function Reference

(continued)