F39-EU1E Omron, F39-EU1E Datasheet - Page 648

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Safety Precautions

Safety Distance

The safety distance is the minimum distance that must be maintained

between the Sensor and a hazardous part of the machine in order to

stop the machine before someone or something reaches it. The

safety distance is calculated based on the following equation when a

person moves perpendicular to the detection zone of the Sensor.

Safety distance (S) = Intrusion speed into the detection zone (K)

The safety distance varies with national standards and individual

machine standards. The equation is also different if the direction of

intrusion is not perpendicular to the detection zone of the Sensor. Be

sure to refer to related standards.

Here T = T1 + T2 + T3

Where

The maximum stop time for a machine is the time it takes to actually

stop dangerous parts after the machine receives a stop signal from

the F3SX.

Reference: Method for Calculating Safety Distance as Defined in

1. When a Single-beam Safety Sensor is used alone (when the risk

2. When multiple Single-beam Safety Sensors are installed at

Note: Refer to the F3SN/F3SH instruction manuals for details on

OMRON's Single-beam Safety Sensor Input Module (B1

Module) from the F3SX Series is the only Controller that

can be used for the E3ZS-T81A/E3FS-10B4@@@ (type

2). Normal operation may not be possible if another

Single-beam Sensor Controller is used.

The Sensor cannot be used as part of a safety system

when the mode selection input of the Single-beam Safety

Sensor Receiver is connected to 0 V because the Sensor

will turn ON when light is interrupted (Dark ON). Be sure

to connect the mode selection input to 24 VDC if you want

the Sensor to turn ON when light is incident (Light ON).

Measure the actual maximum stop time for the machine

and then periodically check it to see if the time changes.

No. of beams

K and C are as follows for Single-beam Safety Sensors.

assessment indicates that a single beam is sufficient)

K = 1,600 mm/s

C = 1,200 mm

Height of the beam from the ground or from a reference surface:

750 mm (EN999 recommendation)

different heights.

K = 1,600 mm/s

C = 850 mm

The beam heights in the following table are the EN999

recommendations.

T1 = Maximum machine stop time (s)

T2 = Sensor response time (s)

(From ON to OFF: 2.0 ms for the E3FS)

T3 = F3SX response time (s)

(From ON to OFF: Refer to Response Time.)

Safety Light Curtains and Multi-beam Safety Sensors.

the European Standard EN999 (with Intrusion

Perpendicular to the Detection Zone)

400 mm, 900 mm

300 mm, 700 mm, 1100 mm

300 mm, 600 mm, 900 mm, 1200 mm

http://www.ia.omron.com/

Sensor

+ Additional distance calculated based on the

detection capability of the Sensor (C)

Total response time for the machine and

Height from the reference surface

!WARNING

(example: the floor)

Preventing Mutual Interference

Observe the following items during installation to prevent

Single-beam Safety Sensors from interfering with each other or with

Safety Light Curtains.

Check for mutual interference between Single-beam Safety Sensors

or Safety Light Curtains connected to the same or different Control

Units before finalizing placement and starting normal operation.

When installing multiple Safety Light Curtains,

Multi-beam Safety Sensors, and Single-beam Safety

Sensors, take necessary steps to prevent mutual

interference. Otherwise detection may fail and serious

injury may result.

Leave adequate space between the Sensors during installation.

(Refer to the instruction manuals for the E3ZS/E3FS and the

F3SN/F3SH.)

Use baffle plates to separate Sensors.

Alternate Emitters and Receivers during installation. (See the

figure below.)

Emitter

Receiver

Emitter

Receiver

!WARNING

E3ZS/E3FS

Receiver

Emitter

Receiver

Emitter

F39-EU1E Omron, F39-EU1E Datasheet - Page 648

F39-EU1E

Specifications of F39-EU1E

Related parts for F39-EU1E