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  • Detects standstill using 2 impulse sensor(s)
  • 2 safety contacts
  • 2 Signalling outputs

Ordering data

Note (Delivery capacity)

Phased-out product

Product type description

FWS 1205 B

Article number (order number)

101170054

EAN (European Article Number)

4030661297163

eCl@ss number, Version 9.0

27-37-18-19

eCl@ss number, Version 11.0

27-37-18-19

ETIM number, version 6.0

EC001449

Available until

31.12.2021

Approval - Standards

Certificates

BG

cULus

EAC

General data

Standards

IEC/EN 60204-1

BG-GS-ET-20

EN ISO 13849-1

Climatic stress

EN 60068-2-3

BG-GS-ET-14

Enclosure material

Glass-fibre reinforced thermoplastic, ventilated

Material of the contacts, electrical

Ag-Ni 10 and 0.2 µm gold-plated

Gross weight

195 g

General data - Features

Stop-Category

0

Wire breakage detection

Yes

Automatic reset function

Yes

Reset after disconnection of supply voltage

Yes

Earth connection detection

Yes

Integral System Diagnostics, status

Yes

Number of LEDs

1

Number of undelayed semi-conductor outputs with signaling function

2

Number of safety contacts

2

Number of signalling outputs

2

Safety appraisal

Standards

IEC 61508

Performance level, up to

d

Control category to EN13849

3

PFH-value

1.00 x 10⁻⁷ /h

Safety Integrity Level (SIL), suitable for applications in

2

Mission Time

20 Year(s)

Mechanical data

Mechanical life, minimum

20,000,000 Operations

Mounting

Snaps onto standard DIN rail to EN 60715

Mechanical data - Connection technique

Terminal Connector

Screw connection

rigid or flexible

Terminal designations

IEC/EN 60947-1

Cable section, minimum

0.2 mm²

Cable section, maximum

2.5 mm²

Tightening torque of Clips

0.6 Nm

Mechanical data - Dimensions

Width

22.5 mm

Height

100 mm

Depth

121 mm

Ambient conditions

Degree of protection of the enclosure

IP40

Degree of protection of the mounting space

IP54

Degree of protection of clips or terminals

IP20

Ambient temperature, minimum

+0 °C

Ambient temperature, maximum

+55 °C

Storage and transport temperature, minimum

-25 °C

Storage and transport temperature, maximum

+70 °C

Resistance to vibrations to EN 60068-2-6

10 ... 55 Hz, Amplitude 0.35 mm

Restistance to shock

30 g / 11 ms

Ambient conditions - Insulation value

Rated impulse withstand voltage Uimp

4.8 kV

Overvoltage category

II

Degree of pollution to VDE 0110

3

Electrical data

Thermal test current

6 A

Rated operating voltage

24 VDC ± 15 %

Rated AC voltage for controls, 50 Hz, minimum

20.4 VAC

Rated control voltage at AC 50 Hz, maximum

26.4 VAC

Rated AC voltage for controls, 60 Hz, minimum

20.4 VAC

Rated control voltage at AC 60 Hz, maximum

26.4 VAC

Rated AC voltage for controls at DC minimum

20.4 VDC

Rated control voltage at DC, maximum

28.8 VDC

Electrical power consumption, maximum

5 W

Contact resistance, maximum

0.1 Ω

Note (Contact resistance)

in new state

Electrical data - Safe relay outputs

Voltage, Utilisation category AC15

230 VAC

Current, Utilisation category AC-15

3 A

Voltage, Utilisation category DC13

24 VDC

Current, Utilisation category DC13

2 A

Switching capacity, minimum

10 VDC

Switching capacity, minimum

10 mA

Switching capacity, maximum

250 VAC

Switching capacity, maximum

8 A

Electrical data - Digital inputs

Input signal, HIGH Signal 1

10 … 30 VDC

Input signal, LOW Signal 0

0 … 2 VDC

Conduction resistance, maximum

40 Ω

Electrical data - Relay outputs (auxiliary contacts)

Switching capacity, maximum

24 VDC

Switching capacity, maximum

2 A

Electrical data - Electromagnetic compatibility (EMC)

EMC rating

10 V/m

Integral system diagnosis (ISD)

Note (ISD -Faults)

The following faults are registered by the safety monitoring modules and indicated by ISD.

Faults

Failure of the safety relay to pull-in or drop-out

Fault on the input circuits or the relay control circuits of the safety monitoring module

Failure of the proximity switches

Failure of one channel being evaluated

Interruption of the connections to the inductive proximity switches

Other data

Note (applications)

safe standstill monitoring

Notes

Note (General)

Inductive loads (e.g. contactors, relays, etc.) are to be suppressed by means of a suitable circuit.

Circuit example

Note (Wiring diagram)

The wiring diagram is shown with guard doors closed and in de-energised condition.

The ISD tables (Intergral System Diagnostics) for analysis of the fault indications and their causes are shown in the appendix.

To monitor one guard door at plants with dangerous run-on movements up to PL d and Category 3

Standstill monitoring for unlocking solenoid interlocks

The solenoid interlock can be opened, when the fail-safe standstill monitor has detected the end of the run-on movement by means of two inductive proximity switches. When the button (E) is actuated, the coil of the solenoid interlock is energised.

For suitable IFL range p-type inductive proximity switches, refer to 'Schmersal Catalogue Automatisierungstechnik'.

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