FWS 1205 B
Archive
Item number:101170054
Product features
- Detects standstill using 2 impulse sensor(s)
- 2 safety contacts
- 2 Signalling outputs
Ordering data
Note (Delivery capacity)Not available!
Product type descriptionFWS 1205 B
Article number (order number)101170054
EAN (European Article Number)4030661297163
eCl@ss number, version 12.027-37-18-19
eCl@ss number, version 11.027-37-18-19
eCl@ss number, version 9.027-37-18-19
ETIM number, version 7.0EC001449
ETIM number, version 6.0EC001449
Approvals - Standards
CertificatescULus
General data
StandardsBG-GS-ET-20EN IEC 60204-1EN IEC 60947-1EN IEC 60947-5-1EN IEC 60947-5-3EN IEC 60947-5-5EN IEC 62061EN ISO 13849-1
Climatic stressBG-GS-ET-14EN 60068-2-3
Housing materialGlass-fibre reinforced thermoplastic, ventilated
Gross weight195g
General data - Features
Wire breakage detection Yes
Automatic reset functionYes
Reset after disconnection of supply voltage Yes
Earth connection detectionYes
Integral system diagnostics, statusYes
Number of LEDs1
Number of undelayed semi-conductor outputs with signaling function2
Number of safety contacts2
Number of signalling outputs2
Safety classification
StandardsEN IEC 61508
Performance Level, up tod
Category3
PFH value1.00 x 10⁻⁷/h
Safety Integrity Level (SIL), suitable for applications in2
Mission time20Year(s)
Stop-Category0
Mechanical data
Mechanical lifetime, minimum20,000,000Operations
MountingSnaps onto standard DIN rail to EN 60715
Mechanical data - Connection technique
Terminal designationsIEC/EN 60947-1
Terminationrigid or flexibleScrew terminals M20 x 1.5
Cable section, minimum0.2 mm²
Cable section, maximum2.5 mm²
Tightening torque of Clips0.6Nm
Mechanical data - Dimensions
Width22.5mm
Height100mm
Depth121mm
Ambient conditions
IP Degree of protection of the enclosureIP40
IP Degree of protection of the installation spaceIP54
IP Degree of protection of clips or terminalsIP20
Ambient temperature+0 ... +55 °C
Storage and transport temperature-25 ... +70 °C
Resistance to vibrations10 ... 55 Hz, Amplitude 0.35 mm
Restistance to shock30 g / 11 ms
Ambient conditions - Insulation values
Rated impulse withstand voltage Uimp4.8kV
Overvoltage categoryII
Degree of pollution3
Electrical data
Operating voltage24 VDC -15 % / +15 %
Thermal test current6A
Rated operating voltage24VDC
Rated AC voltage for controls, 50 Hz, minimum20.4VAC
Rated control voltage at AC 50 Hz, maximum26.4VAC
Rated AC voltage for controls, 60 Hz, minimum20.4VAC
Rated control voltage at AC 60 Hz, maximum26.4VAC
Rated AC voltage for controls at DC minimum20.4VDC
Rated control voltage at DC, maximum28.8VDC
Electrical power consumption, maximum5W
Contact resistance, maximum0.1Ω
Note (Contact resistance)in new state
Material of the contacts, electricalAg-Ni 10 and 0.2 µm gold-plated
Electrical data - Safe relay outputs
Voltage, Utilisation category AC-15230VAC
Current, Utilisation category AC-153A
Voltage, Utilisation category DC-1324VDC
Current, Utilisation category DC-132A
Switching capacity, minimum10VDC
Switching capacity, minimum10mA
Switching capacity, maximum250VAC
Switching capacity, maximum8A
Electrical data - Digital inputs
Input signal, HIGH Signal "1"10 … 30 VDC
Input signal, LOW Signal "0"0 … 2 VDC
Conduction resistance, maximum40Ω
Electrical data - Relay outputs (auxiliary contacts)
Switching capacity, maximum24VDC
Switching capacity, maximum2A
Integral system diagnosis (ISD)
Note (ISD -Faults)The following faults are registered by the safety monitoring modules and indicated by ISD.
FaultsFailure of one channel being evaluatedFailure of the proximity switchesFailure of the safety relay to pull-in or drop-outFault on the input circuits or the relay control circuits of the safety monitoring moduleInterruption of the connections to the inductive proximity switches
Other data
Note (applications)safe standstill monitoring
Note
Note (General)Inductive loads (e.g. contactors, relays, etc.) are to be suppressed by means of a suitable circuit.
Wiring example
Note (Wiring diagram)For suitable IFL range p-type inductive proximity switches, refer to "Schmersal Catalogue Automatisierungstechnik".Standstill monitoring for unlocking solenoid interlocksThe ISD tables (Intergral System Diagnostics) for analysis of the fault indications and their causes are shown in the appendix.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.The wiring diagram is shown with guard doors closed and in de-energised condition.To monitor one guard door at plants with dangerous run-on movements up to PL d and Category 3
The details and data referred to have been carefully checked. Images may diverge from original. Further technical data can be found in the manual. Technical amendments and errors possible.
Generated on: 08/05/2026, 19:52