Trouble Shooting; Maintenance; Periodic Functional Test; Cleaning - Cedes TPS Installation And Operation Manual

TPS

7. Trouble shooting

Sensor status Cause
Does not operate Irregular supply voltage
as expected
Wire / cable cut or improperly connected
The red LEDs
Inappropriate installation
remain unlit
Trigger level too low
TPS installed too high
Irregular operation Dirty lens
Something swaying between the sensors
interrupts the light beam
The red LEDs blink Trigger level set get too long
continuously
TPS installed too low
The red LEDs flicker Minimum gap between devices too short
continuously
The device is interrupted by other infrared
emitters
Adjusting trigger Beams are interrupted by a hand (LEDs
level (screws) has always on)
no effect
Trigger level is too long (LEDs always off)
Trigger level cannot be set
Direction Wrong TPS device
recognition
functions poorly in
Sensor incorrectly set
both directions
Direction The two triggers do not have the same level  Adjust the trigger to the same level
recognition
functions poorly in
one direction
If the problem persists, please contact your local CEDES representative (www.cedes.com).

8. Maintenance

Although TPS does not need periodical maintenance, a functional check with every facility maintenance check is strongly
recommended.
8.1

Periodic functional test

The periodic functional test should consist of the following:
 Test the reopening function over the whole object area.
 Confirm sensor is fastened securely
 Ensure the front window / lenses of TPS are clean and without scratches
8.2

Cleaning

Clean the front surface from dust or dirt with a soft towel.
To clean the surface with a towel, it must be either dry or
slightly moist, but should not be wet.
© CEDES | V 1.6
Action
 Adjust to the specified voltage range
 Check the wires / cable:
Reconnect or replace as appropriate
 Check the installation section (Chapter 5)
 Increase the trigger level
 Check the installation section (Chapter 5)
 Clean the front surface from dust or dirt with
a soft towel
 Remove the obstruction
 Decrease the trigger level
 Check the installation section (Chapter 5)
 Increase gap between devices
 If possible, change the alignment angle of
the sensors
 Take care that while manually adjusting
the trigger level with a screwdriver, the light
beams are not interrupted by your hand
 Try to pull the screw a bit while tightening
 Ensure that there is a background
 Check the label for right TPS device
 Adjust the trigger to the same level
NOTICE
Damage to the sensor
 Never use any
or mechanically
highpressure water to clean the sensor.
English
solvents, cleaners
abrasive towels or
7