SIPLACE S-23 HM.pdf - 第396页

11 Station extensions / hardware User Manual SIPLACE S-23 HM 11.3 Dual conveyor Software Version SR.406.xx 02/00 US E dition 396 There are two conve yor mode s: "Dual c onveyo r synchr onous" a nd "Dua l c…

User Manual SIPLACE S-23 HM 11 Station extensions / hardware

Software Version SR.406.xx 02/00 US Edition 11.3 Dual conveyor

395

11.3 Dual conveyor

11.3.1 Structure of the dual conveyor

The conveyor belts are driven by DC motors. There is a lifting table for holding the PCBs in each

processing area. The width of the PCB conveyor can be adjusted either via the menu or using the

line computer. 11

Fig. 11.3 - 1 Structure of the dual conveyor

11.3.2 General

As the name suggests, the dual conveyor has two transport tracks, which are electrically and me-

chanically independent of one another. In the Standard version, the right-hand side is the fixed

side. There is another version, however, in which the left-hand side is the fixed side. 11

(1) Input conveyor (2) Center conveyor

(3) Output conveyor (4) Lifting table

T1 Transport track 1 11 T2 Transport track 2 11

11 Station extensions / hardware User Manual SIPLACE S-23 HM

11.3 Dual conveyor Software Version SR.406.xx 02/00 US Edition

396

There are two conveyor modes: "Dual conveyor synchronous" and "Dual conveyor asynchronous.

Enter the conveyor mode you wish to use in the machine data (konfig.ma). 11

11.3.3 Defining the transport tracks

The right transport track (viewed in the transport direction) is designated "Transport 1" and the left

as "Transport 2" (see Fig. 11.3 - 1). 11

11.3.4 Changing the conveyor mode

11.3.5 Asynchronous conveyor mode

11.3.5.1 Description

In asynchronous mode, only one PCB in a transport track is processed. At the same time, another

PCB in the second transport track is moved into the placement position. This saves the full con-

veying time of one PCB, thus considerably increasing performance, particularly for PCBs with a

short cycle time. 11

11.3.6 Function

Once the machine has received the job data (cluster, set-up), the PCBs on the feeding belts are

continuously transported to the available center conveyor (provided that the center conveyor is

free) throughout the placement operation. The placement sequence starts as soon as a PCB has

moved onto the center conveyor. The PCBs are processed one after another. 11

PLEASE NOTE 11

The components to be placed and the width of the PCBs must be identical on transport track 1

and 2. 11

If the placement sequence is interrupted, the conveyor interface will be disabled and the PCBs

currently on the center conveyor will be completed. 11

The conveyor interface is disabled or enabled simultaneously for both transport tracks. 11

Conveyor mode Input in konfig.ma

Single conveyor 0

Dual conveyor synchronous 1

Dual conveyor asynchronous 2

User Manual SIPLACE S-23 HM 11 Station extensions / hardware

Software Version SR.406.xx 02/00 US Edition 11.3 Dual conveyor

397

11.3.7 Synchronous conveyor mode

11.3.7.1 Description

In synchronous mode, two PCBs of the same size are moved into the placement position at the

same time. They must be processed as a single cluster. 11

This enables the top and bottom of a PCB to be processed on a single line. This reduces the time

needed to transport the PCBs, since two PCBs are always transported at the same time. 11

11.3.7.2 Function

PCBs on transport tracks 1 and 2 are moved synchronously (i.e. the conveyor belts are indepen-

dent of one another, but are controlled synchronously) on the conveyor sections. The components

to be placed for transport track 1 and 2 must be organized as a cluster in two circuit images (see

the line computer operating instructions). 11

If only one transport track (or center conveyor) is occupied at the start of the placement sequence,

the circuit image for this conveyor section is identified as "do not place". 11

11.3.8 Controlling the dual conveyor with the Single functions menu

Control of the dual conveyor and the Single functions menu are described in section 5 of this user

manual. 11

11.3.8.1 Automatic width adjustment on the dual conveyor

PLEASE NOTE 11

The conveyor setpoint width relates to both conveyor belts. When the command is received, the

conveyor belts are set to the setpoint width one after another.

Automatic width adjustment is deactivated when "synchronous conveyor" is selected. 11