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The WS Safety Controller provides FB-style programming for control of Safety assets, complying with ISO13849-1 PLe and IEC61508 SIL3 safety standards. The most suitable application for the MELSEC-WS is to ensure the safe operation of stand-alone machines. The safety controller allows expansion of up to 144 points of I/O as well as an Ethernet communication interface. Easily configure a controller, adjust parameters, and create programs using the WS Developer Setting and Monitoring Tool software, exclusively provided for the controller.

WS Safety Controller Modules

Model Number


Stocked Item


WS SAFETY, Input Module, 8IN


Model Number


Stocked Item



UL • cUL • CE


Category 4 (EN/ISO 13849-1), Category 4 (EN 954-1)

Safety Integrity Level (SIL)

SIL3 (IEC 61508)

Performance Level (PL)

PLe (EN/ISO 13849-1)


0.4×10-9 1/h

Enclosure Rating (EN/IEC 60529)

Terminals: IP20, Housing: IP40


EN61000-6-2,EN55011 (Class A) (*1)

Protection Class

III (IEC 61140)

External Connection Method

By spring clamp terminal block

Internal Power Consumption (W/O Test Pulse Output)

Max. 1.4 W

Cross-Circuit of Connecting Wires

Single-core or finely stranded: 1×0.14 mm² to 2.5 mm² or 2×0.14 mm² to 0.75 mm² Finely stranded with ferrules to EN 46228: 1×0.25 mm² to 2.5 mm² or 2×0.25 mm² to 0.5 mm²

External Power Specs

Supply Voltage


Type of Supply Voltage

Power Consumption

Switch-On Time

Short-Circuit Protection

Input Specs

ON Voltage

-13 to 30VDC

OFF Voltage

-5 to +5VDC

ON Current

2.4 to 3.8 mA

OFF Current

-2.5 to 2.1 mA

Redundancy Mismatch Time

4 ms to 30 s (Default: 3 s, Increase or decrease 4 ms by 4 ms)

Number of Inputs

8 points (Single), 4 points (Dual-channel)

Test Pulse Output Specs

Number of Outputs

8 points (2 kinds)

Output Type


Output Voltage

15.6 to 30VDC

Output Current (DC)

Max. 120 mA

Test Pulse Cycle

1 to 25 Hz (Changeable by settings)

Test Pulse OFF Time

1 to 100 ms (Changeable by settings)

Load Capacity

1 µF for test pulse duration ≥ 4 ms, 0.5µF for test pulse duration 1 ms < 100 Ω

Cable Resistance

100 Ω or less

Output Specs

Output Points


Output Type

Output Voltage

Output Current (DC)

Total Output Current

Test Pulse OFF Time

Test Pulse Cycle

Load Capacity

Cable Length

Response Time

Fast Shut Off Time

Weight (g)


Dimensions (W x H x D) mm

22.5 x 106.5 x 120.8

Geef beoordeling
  • Beschikbaarheid: B - Beperkt beschikbaar
  • Model: MIT230059
Excl. BTW: €203,00
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