00193733-02.pdf - 第75页

SIPLACE F5 HM 2 Assembly Instructions PCB Camera, Multicolor SIPLACE F5 HM 05/2007 Edition 2.8 SITEST: Configuration and Il lumination Check of all PCB Cameras Multicolor 75 : Now activate the option "Reduce illumin…

2 Assembly Instructions PCB Camera, Multicolor SIPLACE F5 HM SIPLACE F5 HM

2.8 SITEST: Configuration and Illumination Check of all PCB Cameras Multicolor 05/2007 Edition

: Click on the button "Illumination values for live image".

In principle, you can use this function to test whether the illumination of the PCB camera Mul-

ticolor is activated. The illumination levels "White" and "Blue" are visible; "IR" is not.

: The screen "Illumination values for live image" is displayed:

Fig. 2.10.3 Screen: "Illumination Values for Live Image"

: If the Multicolor camera(s) was (were) assembled, reinstalled or exchanged, you must test at

least the illumination levels "White" and "Blue" because their light is visible.

: Click on the "Radio button" to select the illumination level "White".

: Deactivate the button "Reduced brightness" and click on the button "Accept".

The complete illumination level is therefore activated at the outset.

: Switch to the menu "Teach PCB camera" -> Click on the button "PCB camera":

Make a visual check (with safety hoods closed):

The camera’s white light must flash.

: Once again, press the button "Illumination values for live image".

SIPLACE F5 HM 2 Assembly Instructions PCB Camera, Multicolor SIPLACE F5 HM

05/2007 Edition 2.8 SITEST: Configuration and Illumination Check of all PCB Cameras Multicolor

: Now activate the option "Reduce illumination".

This reduces the illumination level by one-half.

: Click on the button "Accept" again.

: Make a visual check (with the safety hoods closed):

The camera’s white light must flash repeatedly but not as brightly as before.

: Execute the above-described check for illumination level "blue" as well.

: Exit the menu "PCB camera".

: In the menu "PCB functions" select the button "PCB camera".

NOTE:

If you would like to check the IR illumination levels too, perform the above-described operation in

a like manner for these levels also and. Place a white sheet of paper under the camera. As a

check, switch over to the vision screen in each case. 2

: Afterward, test to make certain that the camera illumination goes OFF in response to safety

shutoff, as described in Abschn. 2.11.

2 Assembly Instructions PCB Camera, Multicolor SIPLACE F5 HM SIPLACE F5 HM

2.11 Safety Check: Shutdown of Illumination 05/2007 Edition

2.11 Safety Check: Shutdown of Illumination

: In succession, activate again - as described above - visible camera illumination at each gantry

and, while the light is starting to flash ON, open a safety hood or a cover (PCB input / PCB

output):

– Check: The light must turn OFF when this occurs. This results from the interruption of the

current from the voltage regulator module (50 V) by the assembled safety relay.

– If an error occurs, check and correct the wiring on the basis of the circuit diagrams

in Abschn. 2.13.

: Repeat this procedure with the key-operated switch in the normal position and in the service

position. The vision screen must remain DARK. Continue with the illumination setting.

2.12 Illumination Setting

: Adjust the illumination setting at the station to the current substrate to be placed, proceeding

as described below.

2.12.1 Possible Illumination Settings and Selection Criteria

The following types of illumination are possible with the PCB camera Multicolor by using the per-

tinent setting (see Abschn. 2.12.3): 2

– Standard light:

Using this mixture of white and IR light it is possible to recognize a broad range of fiducials. By

selecting special types of illumination, the contrast of the image can be improved and, as a

consequence, the range of recognizable fiducials increased.

– White light:

This is used for standard PCBs (tinned fiducials).

– Blue oblique illumination:

By using this light, an obvious improvement in contrast can usually be attained where bright

fiducials on a light base material are involved, e.g., on ceramic or CEM. In a few instances,

fiducials covered by solder resist can also be recognized better on a light background.

– IR light:

It is usually practical to use this type of illumination for fiducials that are covered by solder resist

or for fiducials on flex material. It may also be possible to improve recognition where silver-pla-

tinum fiducials on ceramic are involved. Ascertain this in advance by conducting a trial cen-

tering and/or a trial placement.