Pinnacle microguard, Руководство по установке

Страница: 14 / 48

Auto Blank [patent # 5,243,183]
Description: Allows user to program the exact size and
location of an object (i.e., a conveyor, table, work piece,
etc.) automatically and can detect any movement in the
object causing the light curtain to shut down.
Application: With the obstruction in place, turn the
key swith from “OFF” to any mode of operation. If the
object(s) do not exceed the total allowable size, the unit
will energize the safety outputs.
Standard Operation:
If the obstruction is moved or
removed, the unit will issue a “MOVE” fault, but will
re-energize the safety outputs when the obstruction
is returned to the original position. Standard operation
allows for a total of eight beams to be blocked anywhere
in the curtain (they do not have to be next to each other).
Optional Operation: If the obstruction is moved or
removed, the unit will issue a “MOVE” fault and lockup,
requiring you to re-program the obstruction.
Troubleshooting: If you get a “MOVE” fault when
the obstruction did not move, it is possible that you
are just barely covering a beam and either vibration or
reflections are causing the beam to become uncovered.
The uncovered beam then causes a fault.
To Activate Feature:
This feature must be ordered and
requires exchanging the computer chips (see Installation
Procedures, “Controller Module Setup”) .
Leave key switch in OFF/RESET
position while installing, setting up, and testing the
light curtain. Use Auto Blank only after you are
able to get a clear signal from the curtain with no
obstruction.
The term “Auto Blank” is an abbreviation which stands
for Automatic Programmable Beam Blanking. Auto
Blanking is controlled by a multi-position keyswitch and
has three distinct modes of operation:
1)
Must be reset if auto blank obstruction moves
or guard penetrated.
The AUTO BLANK
obstruction must remain in its exact location
permanently. Any movement in the AUTO BLANK
obstruction and/or additional guard penetration
will latch the light curtain in a RED condition and
must be reset via the keyswitch.
NOTE: If no obstructions were programmed in, the
guard will still latch in a RED condition should the
guard be penetrated.
2) Must be reset if auto blank obstruction moves.
The Auto Blank obstruction must remain in its
exact location permanently. This works like Mode
1 except guard penetrations will not latch in a RED
condition.
3) Mode 2 with floating blank. This mode works
like Mode 2 with the addition of a Floating Blank
which is set to allow a one beam float (see
Optional Features, Floating Blank”).
I f n o o b s t r u c t i o n s we re
programmed in, the guard will still allow a one
beam float.
Programming: To program, turn the keyswitch into the
OFF/RESET position and place the obstruction(s) in the
guarded area. Now, turn the keyswitch into the desired
mode of operation. The exact size and location of the
object(s) are now in memory. The Depth Penetration
Factor D(pf) must be set to account for the one beam
float (see Optional Features, “Floating Blank”).
Diagnostics Display
AB Auto Blank detected an object (the number
indicates the size of the object).
RDY No objects programmed in, keyswitch in
Mode 1 or 2.
FB No objects programmed in, keyswitch in
Mode 3
SIZE Obstruction size exceeded a total of eight
beams.
PENT Penetration of the light curtain occurred
while keyswitch was in Mode 1.
MOVE Auto Blank obstruction moved.
Place Auto Blank keyswitch into
OFF/RESET position and remove any obstructions
while aligning light curtain. Do not use Auto Blank
until light curtain is correctly aligned (see Installation
Procedures, “Alignment Procedure”) .
The keyed selector switch is designated to be
supervisory controlled. After installation, the safety key
should be removed and controlled only by the safety
supervisor or authorized plant personnel.
Optional Features
Metal Box Controller Module
4