ROTECH SG15 Photoelectric Light Curtains User Manual
- June 13, 2024
- ROTECH
Table of Contents
SG 15 – USER MANUAL ….. NB… series
Space Guard Series
Photoelectric light curtains
Important Information
General
THIS LIGHT CURTAIN SG15 SHOULD ONLY BE INSTALLED BY AUTHORIZED AND FULLY
TRAINED PERSONNEL!
THE LIGHT CURTAIN IS ONLY A SAFETY PROTECTION DEVICE IF ALL INSTRUCTIONS IN
THIS MANUAL, ARE CAREFULLY FOLLOWED AND FULLY COMPLIED WITH. IN ADDITION, THE
INSTALLER IS REQUIRED TO COMPLY WITH ALL LOCAL LAWS AND STANDARDS.
ANY ALTERATIONS TO THE DEVICE BY THE BUYER, INSTALLER OR USER MAY RESULT IN
UNSAFE OPERATING CONDITIONS.
Compliance to Directives and Standards
This device complies with the European directive 2006/42/EC for machinery and
with the European directive 2004/108/EC for electromagnetic compatibility,
when used in accordance with the instructions in this manual.
The compliance to the directive of machinery is declared according to EN
12978, with normative reference to:
EN 13849-1, category 2, PL d
IEC 61496-2, type 2 ESPE
EC type examination:
TUV NORD CERT GmbH, Langemarckstr. 20, 45141 Essen (NB 0044)
EC-type certificate No. 44 205 13 413372-001
Product Data
Technical Data
| SGT (Transmitter)| SGR (Receiver)
---|---|---
Supply voltage| 12-30 Vdc
Max. Voltage ripple| 15% (within supply range)
Reverse polarity protected| Yes
Max. current consumption| 70 mA (RMS)| 30 mA
Max. output load| –| 100 mA
Max. output ON resistance| –| 20Ω ~ 2V@100mA
Max. leakage current| –| 80uA
Short circuit protected| –| Yes
Inductive load protection| –| Yes
Output type| –| Opto coupled solid state relay
Sensing range| 1 m – 12 m
Response time (max.)| 50 ms
Environmental Data
| Light immunity @ 5º incidence | > 100.000 lux |
|---|---|
| Temperature, operation | -20 to + 65 ºC |
| Temperature, storage | -40 to + 80 ºC |
| Sealing class | IP67 |
| Marking |
Output Mode
| Models | Output Mode |
|---|---|
| SGR 15-xxx-0xx-x1-E-x9-xx | NC |
Connection
Wiring Diagrams 
Transmitter SGT 15
Receiver SGR 15 with solid state relay used as NPN output
Receiver SGR 15 with solid state relay used as PNP output
Receiver SGR 15 with solid state relay output.
Installation & Adjustments
General Instruction and Precaution
Even though the light curtain has a high degree of immunity to ambient
light sources, it is recommended to avoid direct exposure to sunlight, and
interference from flashlights or other infrared light sources, such as other
photo sensors.
If the front cover of the light curtain becomes contaminated, they have to be
cleaned with a slightly damp cloth. Do not use organic solvents or detergents.
If the light curtain is very contaminated, the output may go into safe state
and de-energize even after the cleaning, due to safety reasons. The light
curtain will automatically make the necessary internal adjustments, and within
less than a few minutes, the light curtain will be fully adjusted and resume
normal operation. Immediate adjustment can be forced by switching the light
curtain off and then on again.
Ensure that the light curtain is mounted, so that it is mechanically stable
during operation.
The light curtain must not be placed on moving doors.
Severe rain and snow may be detected due to the high sensitivity of the light
curtain.
Indicators
Installation and Adjustment
No initial set up or adjustments are required, due to the automatic signal-
tracking (AST) feature, which automatically adjust each individual channel on
the system.
1| Use the brackets supplied with the light curtain (at least 2 pcs, with max
distance of 135 cm) to mount the transmitter (SGT) and receiver (SGR) facing
each other and correctly aligned.
---|---
2| Correct alignment is achieved when the front cover of the light curtains
are parallel and when a virtual line connecting top of the transmitter and
receiver are perpendicular to both transmitter and receiver front cover.
(Within 2 deg.)
3| Wire the sensor according to the wiring diagram.
Make sure the load does not exceed 100 mA.
4| Check for correct wiring.
5| Turn power on.
6| The status indicator (red LED) on the SGR will flash quickly when the AST
is active.
7| When the power on indicators (green LEDs) is on, the system is operating.
8| Notice that the rails must not be moved after the power to the SGR is
turned on.
SGT/R Test Input
The function of the light curtain has to be tested before any cycle (f.i.
door closing acc.
EN 12978 2009, 4.4.3), by activating the test input of the transmitter and the
receiver. The SGR and the SGT test input wires must be connected together. The
test is enabled and disabled via the black (SGT) and white (SGR) control wire.
(See “Wiring Diagrams” and table below).
Activation of the test input will initiate an extensive internal safety test
in both the transmitter and the receiver. A faulty receiver or a faulty
transmitter will turn on red led and go into safe mode; the transmitter will
stop transmitting and the receiver will de-energise the output until test is
repeated again with success.
An external controller ensures that the receiver de-energizes the output, when
the test inputs are activated, and that the receiver energizes the output,
when the test inputs are de-activated again.
The test input on SGT/R has to be activated a certain minimum time Tr in order
to ensure that the test request is registered and a test sequence is
initiated.
On activation of the SGT/R test input, the output of the receiver will switch
within a certain maximum time TON .
When the test input of SGT/R is deactivated the output will be switched back
within a certain maximum time TOFF.
By only activating the test input on the SGT, a switch in output of the SGR
should be observed.
If only the SGR test input is activated, no change in its output should be
observed.
There must be at least 500ms from the start of one test pulse to the start of
the next test pulse.
Note: Refer to “SGT/R Test Input Response Time “.
How the test inputs are to be operated depends on digit 0X on transmitter
(SGT) and X9 on receiver (SGR) in the model code;
SGT 15-xxx-0xx-x1-E-0X-xx
SGR 15-xxx-0xx-x1-E-NBX9-xx
Make sure no object is present in the detection area when test is done.
Model| Test input connected to 0V – GND| Test input not connected| Test input
connected to+ supply
---|---|---|---
Transmitter SGT| ReceiverSGR
00| 09| Testing activated| No testing| No testing
03| 39| No testing| No testing| Testing activated
04| 49| Testing activated| Testing activated| No testing
SGT/R Test Input Response Time
| Ton (max./min.) | Toff (max./min.) | Tr (min.) |
|---|---|---|
| 120 ms / 35 ms | 120 ms / 5 ms | 200 ms |
Output Logic
Output Logic
| Detection | Output mode | Output status | Output indicator (yellow led) |
|---|---|---|---|
| Light operated (N.C.) | Open | Off | |
| Absent | Light operated (N.C.) | Closed | On |
Housing Length and Number of Channels
Housing Length and Number of Channels
| Housing length | Beam Placement | Active Height | Channels |
|---|---|---|---|
| 1928 mm | C1 | 1800 mm | 40 |
| D1 | 1800 mm | 28 | |
| E1 | 1800 mm | 16 | |
| 2288 mm | C1 | 2160 mm | 48 |
| D1 | 2160 mm | 30 | |
| E1 | 2160 mm | 18 | |
| 2648 mm | C1 | 2520 mm | 56 |
| D1 | 2520 mm | 32 | |
| E1 | 2520 mm | 20 |
Troubleshooting
Troubleshooting
| Probable Reason | Corrective Action |
|---|
1. Symptom: Red LED on SGT/R is constant on. All other LEDs are off.
Error found during test process| Check supply and cable to the SGT/R.
Or replace the rail(s).
2. Symptom: Red and green LEDs on SGT is constant on.
Error found during test process| Replace the SGT rail.
3. Symptom: Red and green LEDs on SGR is constant on.
Error found during test process| Replace the SGR rail.
4. Symptom: Yellow LED on SGR is flashing
Cross talk from another light curtain, or other powerful light sources.|
Change position of the SGT and SGR rails.
5. Symptom: Yellow LED on SGR is constant off. Red LED is off.
Rails are out of sensing range| Check the sensing range and power to the SGT.
6. Symptom: After start up, red LED on SGR continues to flash quickly. Green
LED is on.
Rails are out of sensing range or SGT is not turned ON or an object is
obstructing one or more beams.| Check the sensing range and for objects
between the SGT and the SGR.
Check SGT is powered or replace rails.
7. Symptom: After start up, green LED on SGT/R is on. Yellow LED on SGR is
off.
Test input is constant activated under and after start up.| Deactivate the
test input on SGT/R.
Disposal
Disposal
The light curtain should only be replaced if a similar protection device is
installed. Disposal should be done using the most up-to-date recycling
technology according to local rules and laws.
Manufacturer
Manufacturer
Telco A/S, Højerupvej 25a, 4660 Store Heddinge, Denmark
Lars Krarup, Managing Director
Website: www.telcosensors.com
E-Mail: info@telcosensors.com
Made in Denmark
Preliminary
October 2013 edition
Telco A/S reserves the right to make changes without prior notice
References
Read User Manual Online (PDF format)
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