Diagnostics and troubleshooting – Pinnacle Systems SLT Series User Manual

Page 20

SLT Series

Diagnostics and Troubleshooting

that mechanically the beams should be

hitting the center of the mirror , the

beams may hit the next mirror slightly

off center due to inaccuracies between

the optical and mechanical centers.
Once the mirrors and pylons are placed

in mechanical alignment, start adjusting

the mirror closest to the Emitter Pylon.

This will af fect the location that the

beams strike the next mirror, and so on.
Nearby obstructions may fall into the

field of view if the mirrors are not

correctly adjusted.

Other Light Curtains

. The infrared

beams that leave the Emitter Pylon

spread out like a flashlight and

sometimes may end up hitting the

Receiver Pylon of another pair of light

curtains. This can sometimes throw off

both sets of light curtains and keep one

or both sets RED.
To determine if this is happening, turn

off all light curtains and try one set at a

time. You may have to place a blinder

to keep one unit from seeing another.

Reflections

. Highly reflective material

near the light curtain can cause the

infrared light to bounce around and

keep the unit RED. To determine if this

is happening, temporarily cover up any

reflective material (i.e., polished metal)

and re-align the pylons and the unit

should go GREEN. You have to paint

the offending object to clear up the

problem.

Dia

Diagnostic Displa

gnostic Displa

gnostic Display Codes

y Codes

.1. Blinking ....

If the decimal points on the display are

blinking, this indicates that the

computers have not received a single

beam from the Emitter Pylon. This

means that either the Emitter Pylon is

not on, you are blocking the sync (top)

channel, a bad Emitter Pylon, or an

alignment problem.

0 ..................... Clear

Definition:

No obstructions found.

Status:

GREEN, output relays energized.

Reason:

Nothing wrong.

1 ..................... 1 Beam Broken/Alignment Problems

Definition:

The light guard was triggered when at

least one beam was detected broken.

Status:

RED, fail safe relays off.

Reason(s):

1) Obstruction of one or more beams

during normal light curtain

operations. Floating Blank option:

set to 2cm mode.

2) If no obstruction is observed, then

light curtain is misaligned.

3) Emitter Pylon is not transmitting.
4) Sync Channel not firing.

Cure(s):

1) Remove all obstructions.
2) Place Floating Blank option in 2cm

mode.

3) Place Auto Blank option in OFF/

RESET position.

4) If the Sync LED is of f and the

display still reads 1, then try and

realign the light curt ain’s position

until you get a GREEN condition.

5) If the Sync LED is on, then try

aligning the pylons to get the Sync

LED to go out. Placing the pylons

close together will prove if the units

will ever go GREEN.

Important:

The Ground Terminal must be

connected to a good ground connection, not

conduit. A bad ground may keep the light curtain

from going GREEN in an electrically noisy

environment.