Wintriss Shadow VI, Руководство пользователя

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Shadow VI User Manual 1107200
Installation and Checkout Chapter 2 page 33
Shadow optic heads must be attached at both ends so that vibration does not cause the units
to go out of alignment. It is all right to mount Shadow VI brackets to your press at one end
only (to the bolster of a press, for instance). However, the bracket must be designed so that
the shock mounts supplied with your heads can be placed between the head and the bracket.
You can mount your Shadows directly to a vertical wall or column of your press if the
location meets all mounting requirements, including safety distance.
Installing Brackets with Alignment in Mind
The bracket design must allow adjustment of the Shadow VI heads once they are mounted.
Shadow light curtains may have to be moved slightly up or down or rocked slightly to one
side or the other to align them once they are mounted (you will see why when we discuss
alignment).
As we mentioned earlier the Shadow universal mounts allow subtle adjustments of the heads.
These mounts can be rotated ±30° to facilitate installation and alignment. If you need to
pivot a bracket more than 30°, remove the mounting screws, move the bracket 90°, and
reattach the bracket to the head.
Alignment Considerations
Although Shadow is easy to align and tolerant of vibration and shock, optic life is improved
by alignment optimization.
Optimum alignment can easily be accomplished using the optional Laser Alignment Tool
(see "Using the Laser Alignment Tool" later in this section), which slides along the groove
on either optic head.
As long as the phototransistor's field is anywhere within the funnel-shaped path of the light
beam, Shadow will align. The optic heads don't have to be perfectly aimed (see Figure 2-6).
What alignment means
The alignment procedure is explained in the section "Aligning and tightening down Shadow
VI components". For Shadows to operate properly, each infrared LED emitted horizontally
from the Shadow transmitter must be detected by each PT in the receiver.
The PTs as well as the LEDs are located on the front of each unit. You cannot see them but
their location can be determined using the alignment indicator guides on the Shadow
receiver. To find the mating beam on the transmitter, use the same measurement from the
base of the receiver to the lowest indicator guide. Each LED must match up with its opposite
phototransistor when the Shadow light curtains are mounted as shown in the next illustration.
Therefore, Shadow optic heads must be mounted in the same plane.
You should always try to mount the brackets as precisely as possible. Then, the alignment
procedure in the section "Aligning and tightening down Shadow VI components" will be
easy. Also note that the optic heads don't have to be mounted vertically (although this is
certainly a common approach). They can be mounted at any angle as long as they are in the
same plane.