34
P/N 69761 rev. B
Banner Engineering Corp.
•
Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
PICO-GUARD Controller
Instruction Manual
Periodic Checkout Procedures
7)
®
If the USSI inputs are to be used,
verify the system(s)
checkout procedures for the external safety systems or
other devices connected to the USSI inputs as described by
the appropriate manuals.
Do not proceed until all checkout procedures are
completed successfully and all problems have been
corrected.
8)
o
Apply power to the PICO-GUARD System. Ensure that
power to the guarded machine is OFF.
Remove all
obstructions from the light beams. If the controller is
configured for Auto Power-up, it will automatically perform
a system reset on power-up, after the internal system tests
are completed. If the controller is configured for Manual
Power-up, verify that the System Reset indicator is double-
flashing. Perform a System Reset (close the System Reset
switch for 1/4 to 2 seconds, then open it). Verify that the
System Reset indicator goes OFF.
9)
o
Observe the status indicators on the controller to determine
System status:
A stop condition, indicated by:
System Status and OSSD indicators steady Red
One or more channel indicators steady Red
external stop device or external stop device 2 input
indicators steady Red
A run condition, indicated by:
System Status and both OSSD indicators steady Green
Channel indicators of all enabled channels steady Green
(flickers Green if excess gain is marginal)
Channel indicators for disabled channels OFF
All external stop Device Input indicators steady Green
An optical channel latch condition, indicated by:
System Status indicator steady Red
System Reset indicator flashing Yellow
Channel indicators of all enabled channels steady Green
(flickers Green if excess gain is marginal)
Channel indicators for disabled channels OFF
Latch Output: outputs come back ON only when all enabled
channels are clear and after a System Reset.
A External Stop Device latch condition, indicated by:
System Status indicator steady Red
external stop device Reset indicator flashing Yellow
Both external stop device input indicators Green
The external stop device latch will be cleared only when
both external stop device inputs are closed (ON) and after a
external stop device Reset.
A lockout condition, indicated by:
System Status indicator flashing Red
Additional indicators may also flash Red to indicate the
error type
10)
o
If in a run condition, go to step 11.
If in a lockout condition, refer to Section 5.
A stop condition indicates that an optical element is
misaligned or interrupted or that a external stop device stop
signal is present. To correct this situation:
a)
Check carefully the position of optical elements
(open
or closed) or for any obstruction in the beam path.
b) Check for contamination.
Clean the optical element
windows as required (see
PICO-GUARD Application and
Design Guide
).
c)
If the beam path is completely clear of obstructions
and all interlock switches are closed, realign the optical
elements, as described in Section 3.6.
d)
Check the USSI inputs and device operation per
Section 4.5.
If the System is in an optical latch condition, perform a
System Reset.
If the System is in a USSI 1 latch, perform a USSI 1
Reset.
11)
o
Apply power to the guarded machine
and verify that the
machine does not start up.
12)
o
Once the System Status and OSSD indicators are steady
Green,
perform the Trip Test
(described on the appropriate
Daily Checkout Card) to verify proper System operation
and proper operation of each optical element of all enabled
optical channels.
13)
o
Initiate machine motion of the guarded machine
and,
while it is moving, open (block) the beam through an
optical element. Do not attempt to reach into the dangerous
parts of the machine. Upon opening (blocking) the beam,
the dangerous parts of the machine should come to a stop
with no apparent delay. Upon closing (clearing) the beam,
verify that
the machine does not automatically restart,
and that the initiation devices must be engaged to restart
the machine.
WARNING . . .
Before Applying Power to
the Machine or Initiating Machine Motion
Verify that the guarded area is clear of
personnel and unwanted materials (such as
tools) before applying power to the guarded machine.
Failure to do so could result in serious bodily injury or death.
WARNING . . .
If Trip Test Indicates a
Problem
If the PICO-GUARD System does not respond
properly to the trip test, do not attempt to use
the System.
If this occurs, the System cannot be relied upon
to stop dangerous machine motion when a person or object
enters the beam.
Serious bodily injury or death could result.
