Keyence GS-71P5 Safety Interlock Switch

The GS-71P5 is the ideal safety solution for machine guarding, access control, and industrial automation, ensuring fail-safe locking, reliable monitoring, and compliance with the highest safety standards. With a robust design, power-to-lock functionality, and advanced diagnostics, this unit delivers unparalleled performance in demanding safety applications.

Technical Specifications

Model: GS71P5
Lock Type: Power-to-Lock Type
Type: Standard Type

Locking & Response Time

Response Time:

• Lock → Unlock: 320 ms ¹²*
• Unlock → Lock: 220 ms ¹²³
• Locking Force (Fzh): Min. 2,000 N
• Alignment Tolerance of Lock: ±2 mm (±0.08″)
• Mechanical Life-Span: 1 Million Cycles or More (With Door Operation Speed of 1 m/s)

Acceptable Operation Frequency:

• 1 Hz ⁴
• 3 Hz (When OSSD is in Open/Close Link Mode) ⁴

Minimum Door Radius: 250 mm (9.84″)
Auxiliary Release: Front, Back ⁵
Cascading Capability: Max. 25 Units

Control Output (OSSD Output)

Output Type: Transistor Outputs × 2
Max. Load Current: 150 mA
Residual Voltage (During ON): Max. 2.5 V (With 5 m Cable Length)
OFF State Voltage: Max. 2.0 V (With 5 m Cable Length)
Leakage Current: Max. 0.5 mA
Max. Capacitive Load: 2.2 µF
Load Wiring Resistance: Max. 2.5 Ω

AUX (Non-Safety Related Output)

Output Type: Transistor Output
Number of Outputs: 1
Max. Load Current: 50 mA
Residual Voltage (During ON): Max. 2.5 V (With 5 m Cable Length)

GS-71P5 External Input

Safety Input: Approx. 1.5 mA × 2
Lock Control Input: Approx. 2.5 mA × 1
Reset/EDM Input: Not Supported
OSSD Operation Switching Input: Not Supported

Safety & Compliance Standards

Certified Standards:

• EN 61508, IEC 61508 (SIL2/SIL3)
• EN 62061, IEC 62061 (SIL CL2/SIL CL3)
• EN ISO 13849-1: 2015 (PLd, Category 2 / PLe, Category 4)
• EN ISO 14119 (Type 4)
• IEC 60947-5-3, EN 60947-5-3
• UL 61010-1, CAN/CSA-C22.2 No.61010-1

Protection Circuit:

• Reverse Current Protection
• Short-Circuit Protection
• Surge Protection for Each Output

Power & Electrical Specifications

Power Voltage: 24 VDC ±20% (Ripple P-P 10% or Less, Class 2)
Power Consumption: 3.4 W ⁶

• Temporary Power Surge: Max. 10.5 W for Approx. 0.2 s When Lock Control Input is Turned ON

Environmental Resistance

Enclosure Rating:

• IP65/IP67 (IEC 60529)
• IP69K (ISO 20653) (TÜV SÜD Certified)
• Enclosure Type 3/4X/12/13 (NEMA 250)

Operating Conditions:

• Operating Temperature: -20°C to +55°C (-4°F to 131°F) (No Freezing)
• Operating Relative Humidity: 5% to 95% RH
• Storage Temperature: -25°C to +70°C (-13°F to 158°F) (No Freezing) ⁷
• Storage Relative Humidity: 5% to 95% RH

Durability & Shock Resistance:

• Vibration Resistance: 10 to 55 Hz, Double Amplitude 2.0 mm (0.08″), 5 Minutes in Each of the X, Y, and Z Directions (IEC 60947-5-3)
• Shock Resistance: 30 G in X, Y, Z Directions, 6 Times Each Axis (IEC 60947-5-3)

Material & Construction

Sensor Main Unit:

• Case: SUS304, PPS, PBT, PAR, PA66, NBR
• Lock: Aluminum Alloy, Zinc Die-Cast (Nickel Chrome Plating)
• Cable: PVC

Actuator:

• Case: PPS, PBT, NBR
• Lock: Aluminum Alloy, SUS303

Weight: Approx. 560 g

Key Features & Benefits:

✅ High-Security Locking System: Power-to-lock mechanism with 2,000 N force ensures secure door interlocking.

✅ Quick Response Time: 220 ms lock engagement for minimal downtime.

✅ Flexible Cascading Capability: Connect up to 25 units for large safety systems.

✅ Rugged Industrial Protection: IP69K-rated for harsh environments and washdown areas.

✅ High Impact Resistance: 30 G shock rating ensures durability in demanding applications.

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