Omron NL-200 User manual

NL-200, NL-220, NL-220F

LED Lighting Controller

User Manual

84-100022 Rev A

NL-200 Series Controller User Manual 1-1

1 Disclaimer

Except as prohibited by law:

• All hardware, software and documentation is provided on an “as is” basis.

• It is essential that the user ensures that the operation of the product is suitable for their application.

• The user must ensure that incorrect functioning of this equipment cannot cause any dangerous

situation or signicant nancial loss to occur.

• Gardasoft Vision Ltd and Gardasoft Products Ltd will not accept any liability for consequential loss

of any kind.

Hardware manufactured by Gardasoft Vision Ltd under licence.

Latest Manual Version

For the latest version of this manual, see the Download Center on our web site at:

www.microscan.com.

Technical Support

For technical support, email: [email protected].

Omron Microscan Systems, Inc.

Renton Headquarters

Tel: 425.226.5700 / 800.251.7711

Fax: 425.226.8250

Nashua Ofce

Tel: 603.598.8400

Fax: 603.577.5818

Omron Microscan Europe

Tel: 011 31 172 423360

Fax: 011 31 172 423366

Omron Microscan Asia Pacific

Tel: 65 6846 1214

Fax: 65 6846 4641

NL-200 Series Controller User Manual 2-1

2 Getting Started

The NL-200 current controller provides repeatable intensity control of LED lighting for machine vision

applications. It includes the intensity control, timing and triggering functions required for machine vi-

sion systems.

LED lighting needs a constant current supply as small variations in voltage can cause large variations

in light output. The NL-200 can set currents in steps of 0.1% (with a lower limit of 2.5mA steps to give

very ne control of intensity.

Before you start consult your NERLITE specification or product labeling for it’s Current Rating. All

specifications can be found on the Omron Microscan website.

NOTE: This current rating is critical to the safe operation of the NERLITE, care must be taken

to determine the correct rating for the light to be connected to the NL-2XX controller.

NOTE: Lighting must not be connected to anything else and must not have a common con-

nection to other lights

NOTE: The NL series has SafePowerTM low heat technology so that in most cases

heatsinking is not required. SafePower also automatically “steps-up” the output volt

age, so that from a 24V supply a higher voltage (eg 36V) can be output.

1.) Read the sections on Safety (Section 3) and Specications (Appendix A) and check the

NL-2XX fulls your requirements.

2.) Mount the NL-2XX as described in Section 4.

3.) Connect the NL-2XX up to a supply as described in Connections (Section 5). When the front

panel is present, the NL-2XX should show two alternating lines on the display to indicate that

it is operating properly.

4.) Read Lighting Setup (Section 7) and then enter the current rating for the lights you need to

connect. Then connect the lights. NOTE: The current release of the NL-2XX does not sup

port Voltage Rating, use only Current Rating to operate your light(s).

5.) Set up the NL-2XX for the desired operation as described in the Conguration sections

(Section 8, 10 or 11).

2-2 NL-200 Series Controller User Manual

Getting Started

2.1 Summary of Features

Throughout this manual, references to the NL-2XX refer to all variants in the NL range unless other-

wise stated.

The convention for the part number is:

NL-cd0-vv

NL-cd0F-vv

where:

NL product range name

c Number of channels: 2, 8.

d Conguration option: 0 = front panel, 2 = Ethernet

F Option for fast pulsing

vv Maximum current rating in amps: 2, 20

The following table lists the features on each model.

Feature NL200 NL220 NL220F

Number of channels 2 2 2

Front panel

conguration Yes Yes Yes

Ethernet

conguration No Yes Yes

Fast pulsing No No Yes

NL-200 Series Controller User Manual 3-1

3 Safety

Read this before using the NL-2XX. Always observe the following safety precautions. If in

doubt, contact your distributor or Omron Microscan Systems. The following symbols mean:

Warning: read instructions to understand possible hazard

Warning: Possible hazardous voltage

Warning. Surface may get hot

Where these symbols appear in the manual, refer to the text for precautions to be taken.

3.1 Heat

The NL-2XX can dissipate up to 10W and so can get hot. It should be positioned where personnel

cannot accidentally touch it and away from ammable materials.

Read the Mounting (Section 4). Do not exceed the power ratings given in the manual. Note that at the

maximum ratings the case temperature can reach 65°C.

Ensure that any ventilation holes are not blocked. Allow free ow of air around the unit.

3.2 Electrical

The lighting connections can exceed 46.7V but should not exceed 70V. Pulse peak voltages

above 46.7V are considered hazardous. The lighting connections must be shielded from being

touched along the whole length of the cable and in the light.

The user must ensure that the potential difference between any combination of input signals does not

exceed 46.7V. WARNING: Higher voltages may cause a danger to personal health.

The NL-2XX does not have complete tracking isolation of inputs and outputs.

Transients caused by inductive loads must be suppressed external to the NL2XX.

The NL-2XX outputs high energy pulses. Care must be taken to connect the outputs correctly and

protect the output wiring and load from inadvertent short-circuits. When switched off, there is still

energy stored in the NL-2XX for about 15 seconds.

3.3 General

The NL-2XX must not be used in an application where its failure could cause a danger to personal

health or damage to other equipment.

If the equipment is used in a manner not specied by the manufacturer, the protection provided by the

equipment may be impaired.

NL-200 Series Controller User Manual 4-1

4 Mounting

In order to provide xing points to mount the unit onto a at surface or bracket M3 nuts must be

inserted into one or more of the slots in the base, see illustration below. The quantity and position

of these nuts is dependant upon the users requirements. To t a nut remove one of the end covers.

The nuts can then be slid into the slots and the cover replaced. Ensure that the xing screws used do

not extend past the lower base surface by more than 5.5mm.

See Addendum for installation of optional DIN Rail Mounting Kit.

4.1 Environmental considerations

The NL-2XX enclosure is a re enclosure as long as it is mounted so that none of the connectors are

facing downwards.

If a re enclosure is used, the enclosure should be metal or plastic (with a ammability rating of UL94

V1 or better); with no holes below or to the sides of the NL-2XX when mounted. Cable entries below

the NL-2XX should be via glands that have a ammability rating as before. The NL-2XX should be at

least 10mm from any other part or side of the enclosure.

The NL-2XX does not have an IP rating and should be mounted so that moisture and dirt cannot

enter the unit.

NL-200 Series Controller User Manual 5-1

5 Connections

See the Specication (Appendix A) for information on connection ratings.

5.1 Power Supply

To avoid a re hazard from the NL-2XX or the power supply consider the implica-

tions of overheating in the unlikely event of a fault in the NL200. The power dissipa-

tion in the NL-2XX in a fault condition can be up to:

Either limit the power supply output current so that not more than 30W can be dissipated in the

NL200, or mount the unit in a re enclosure.

Choose a PSU that limits its output current by design, by setting the current limit on the supply (if

this feature exists) or use fuses. Remember to derate the fuse, if mounted in an enclosure, as the

temperature will be higher than ambient. The external power supply will need to be able to supply at

least the average output power for all active channels.

The use of a regulated power supply with 100% short circuit protection is recommended. If however a

non-regulated power supply is used, then the maximum ripple voltage of this power supply must not

exceed 10% of the actual DC value.

Route low voltage and mains wiring separately. If they must be loomed together ensure that low volt-

age insulation rating is sufcient or that supplementary insulation is used.

Pin Power Input Connector

1 +24V to +48V

2 GND

5.2 Lighting Output

The lighting connections can exceed 46.7V but should not exceed 70V DC.

Pulse peak voltages above 46.7V are considered hazardous. The lighting

connections must be shielded from being touched along the whole length of

the cable and in the light.

Make sure you set the current rating for a light before connecting it. See the Lighting Setup

(Section 7) for details on this.

Light output is on 4-way pluggable screw terminal sockets. It is possible to use two 2-way connectors

in a 4-way socket.

The lighting output connections must not be commoned or grounded in any way.

5-2 NL-200 Series Controller User Manual

Connections

Pin LED12

1 CH1 lighting

out +ve

2 CH1 lighting

out -ve

3 CH2 lighting

out +ve

4 CH2 lighting

out -ve

5.3 Trigger Inputs

There is one trigger input per channel.

The trigger inputs are opto-isolated 3V to 24V input, drawing a minimum of 3mA.

Pin ET12 connector

1 TRIG1 -ve

2 TRIG1 +ve

3 TRIG2 -ve

4 TRIG2 +ve

5.4 12V Power Output

One or two 12V power supply outputs may be present. These can supply up to 1A at 12V for power-

ing external cameras and other devices. Do not connect inductive loads or devices that take large

peak currents. Do not exceed the current rating as these outputs are not fused.

Pin PW1 connector PW2 connector

1 GND GND

2 +12V +12V

5.4.1 Ethernet Connection (NL220, NL-220F)

The RJ45 Ethernet connector requires a straight through cable to connect into a network switch, hub

or router. It runs at 10Mbits per second.

NL-200 Series Controller User Manual 5-3

Connections

5.4.2 Connectors

The NL-2XX is supplied with mating connectors for the power supply input, trigger inputs, 12V power

output and lighting output.

Should spare parts be required these can be obtained as follows:

Connector Description Wuerth part Farnell part

number number

www.we-online.com www.farnell.com

Power Wuerth 351 series 691-351-

Input 2W screw terminal free skt 500-002 164-1952

Trigger Wuerth 361 series 691-361- 1642-001

Input 4W screw terminal free socket 100-004

12V Wuerth 348 series 691-348- N/A

Output 2W screw terminal free plug 500-002

Lighting Wuerth 348 series 691-348- N/A

Output 4W screw terminal free plug 500-004

NL-200 Series Controller User Manual 6-1

6 General Description

The NL-2XX current controller provides repeatable intensity control of LED lighting for machine vision

applications. It includes the intensity control, timing and triggering functions required for machine vi-

sion systems.

LED lighting needs a constant current supply as small variations in voltage can cause large variations

in light output. The NL-2XX can set currents in steps of 0.1% (with a lower limit of 2.5mA steps) to

give very ne control of intensity.

Four modes of operation are provided separately for each channel:

• Continuous (“SCo”):

In continuous mode the output is a continuous brightness.

• Pulse (Strobe) (SPu”):

In pulse mode output is pulsed once per trigger. One trigger input is used as a trigger. The delay

from trigger to pulse, the pulse duration and the brightness can be set.

• Switched (“SOn”):

In switched mode a trigger input can be used to switch the output current on and off. The output

is only enabled when the trigger input has a voltage on it.

• Selected (“SSe”):

In selected mode a trigger input can be used to select between two different intensities..

The NL-2XX is set up using the push buttons and display on the front of the unit. The set up is non-

volatile, so the NL-2XX will resume the same operation after a power cycle.

6.1 Output Modes

The trigger inputs are used as follows:

Mode Trigger Input Output

Continuous Unused Output is on.

Switched Trigger = off Output is off

Trigger = on Output is on

Selected Trigger = off Output is continuous brightness 2

Trigger = on Output is continuous brightness 1

Pulsed Trigger rising edge Pulse is triggered if P ag = 1

Trigger falling edge Pulse is triggered if P ag = 0

Note that the P ag inverts the sense of the trigger input.

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