Mayser SG-EFS 104-4L User Manual

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+

Y21 Y22 Y11 A2

14 24 34 42

13

23

33

41

A1 S2S1Y12

Betrieb

Kanal 1

EFS 104/4L

Kanal 2

R

99

114.5

22.5

2935.5

Safety Control Unit SG-EFS 104/4L

Option: with or without reset function

SG-EFS 104/4L

Auto

Operating
Instructions

Safety Control Unit
EEC-type-examination
certicate

EN 954 category 3
SIL2 in accordance with IEC 61508

with forceguided contacts for increased
safety requirements; for BK type sen­sors.

These operating instructions apply to
the following Control Unit:

SG-EFS 104/4L 24 V =/~

Control system

The single-fault-safe electronics module
has two channels (redundant). Each
channel triggers a forceguided relay.
The relays self-test by contact return
after each switching cycle. The elect­ronic system monitors the connected
BK type sensor. When the sensors are
not activated, both output relays are
energised and both green LEDs light.
If the sensor is activated, or a break
occurs in the supply to the Control Unit,
relays K1 and K2 deenergise and the
LEDs go out.

Start

Sensor

Enclosure

W × H × D (mm) 22.5 × 114.5 × 99
Protection class IP20
Terminals, xed 4× 4-pin
Cable clamps
Solid wire 1× 2.5 mm

Mayser Polymer Electric Postfach 30 48 89020 Ulm Germany Tel. [phone] Fax [phone]

240407 v1.2

Strand with sheath 1× 2.5 mm
Solid wire 2× 1.5 mm
Strand with sheath 2× 1.5 mm
Weight approx. 180 g

Parts supplied

- Control Unit

Enclosure with electronic part

- Operating Instructions

2

2

2

2

Mayser Polymer Electric Postfach 30 48 89020 Ulm Germany Tel. [phone] Fax [phone]

240407 v1.2

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Safety Control Unit SG-EFS 104/4L

SAFETY INSTRUCTIONS! Please read!

• This unit is designed and tested in
accordance with EN 60947-1 and
left the factory in a perfectly safe
condition. To maintain this condi­tion, you must observe the safety
regulations marked "WARNING!" in
these operating instructions. Failure
to observe the safety regulations
can lead to death, injury to person­nel, or damage to the unit and other
systems and equipment.

•

To ensure correct and safe operation
of the unit, it must be properly trans­ported and stored, properly installed
and commissioned, and operated in
accordance with its intended use.

•

Only persons familiar with the install­ation, commissioning and operation,
and with the corresponding qualicat­ions to prove their skills, may work on
the units. They must observe the con­tents of these operating instructions,
the information stated on the unit and
the relevant safety regulations for the
installation and operation of electrical
systems.

•

Repairs, in particular opening the en­closure, may only be carried out by the
manufacturer or a person appointed
by the manufacturer. Otherwise all war­ranty claims become null and void.

• When using the device outside the

Technical Data

Connecting voltage U

SG-EFS 104/4L AC 24 V DC 24 V

Voltage tolerance -10% to +10% -10% to +10%
Nominal frequency 50 - 60 Hz
Power consumption < 5 VA < 3 W

Sensor

Short-circuit resistance ≤ 400 Ω
Line resistance ≤ 10 Ω
Line length max. 100 m per connection

Control Unit outputs Relays forceguided

Safety circuits 13/14, 23/24, 33/34; normally open contact
Signal circuit 41/42; normally closed contact
Switching voltage max. AC 250 V max. DC 24 V
Switching current max. 5 A max. 5 A
Switching capacity according to

EN 60947-5-1 1,250 VA (AC 15) 120 W (DC13)

Switching operations

mechanical > 1× 10
electrical > 1× 105 (DC 24 V / 2A)

Creep distance and air gap

according to EN 50178 for soiling degree 2, overvoltage

Contact fuse protection external

Normally open contact 6.3 A quick-acting
Normally closed contact 4 A Neozed gL/gG
PFDL Value according to
IEC 61508 4.57 × 10
PFHL Value according to
IEC 61508 1.08 × 10-8 1/h

Operating behaviour

Reactivation time < 1 s
Response time < 30 ms

Operating conditions

Permissible ambient
temperature -25 °C to +55 °C
rel. humidity max. 95%
Impact resistance transport 10 g
Impact resistance in operation 2.5 g

S

7

category 3 / 250 V

-5

European Union, you must observe
the relevant regulations valid for the
country of use.

• Should the information given in
these operating instructions be inad­equate in any way, please contact
your local technical centre, subsidi­ary or representative.

Important notes:

- Supply voltage

must be in accordance with the
connecting voltage US indicated
on the type plate.

- Permissible ambient temperature
range

If installing into a cabinet, maintain
sufcient distance from heat sources
(min. 2 cm).

- Wiring

Wire direct to the control circuit or
continue two-channel mode to the
next circuit.

- Fuse relay contacts externally

due to risk of fusion

- Protection class

The units may only be used in locat­ions with a minimum protection class
of IP54 (e.g. cabinet).

Note:

When switching inductive loads the user
must be tted out with spark absorbers.