Description
ifm Fail-safe Inductive Sensor GF711S
Introduction – ifm Fail-safe Inductive Sensor GF711S
The ifm Fail-safe Inductive Sensor GF711S is an advanced safety-rated proximity switch engineered for precise and reliable machine protection in industrial automation. Designed for use with safety PLCs, AS-i Safe modules, and safety evaluation units, it ensures a fail-safe response whenever the target metal object is undetected, enabling dependable risk reduction in safety-critical applications.
This PNP-based inductive sensor features two OSSD outputs for redundancy and performance verification, conforming to EN 60947-5-3, IEC 61508, and ISO 13849 safety standards. Its compact M12 threaded stainless-steel housing (316L) ensures robustness and long service life, even in harsh factory environments.
The GF711S offers fast response times of just 1 ms, a safe switch-off distance of 6 mm, and IP65/IP67 protection for reliability under demanding conditions. Gold-plated contacts and an LED display simplify installation and maintenance while maintaining stable electrical performance.
Trusted globally and distributed regionally by Dubai Sensor, the GF711S delivers certified safety performance suitable for machinery and automation systems across the UAE and MENA industrial sectors, ensuring compliance and long-term operational safety.
Key Features & Benefits
- Fail-safe operation: Safe state when undamped for maximum protection.
- Safety certification: SIL 2 (IEC 61508), PL d (ISO 13849-1), Category 2.
- Dual OSSD outputs: Reliable PNP outputs (A1, A2) for redundant monitoring.
- Compact stainless-steel design: M12 × 1 threaded body, durable 316L/1.4404 housing.
- Fast reaction time: 1 ms response to safety request for high-speed applications.
- Gold-plated M12 connector: Enhances signal integrity and longevity.
- Wide operating range: 19.2…30 V DC, 0.5–4 mm enable zone.
- Maintenance-free continuous operation: Designed for 175,200 h mission time.
- IP65/IP67 protection: Reliable under industrial environmental conditions.
- Direct compatibility: Works with safety PLCs and AS-i Safe systems without a special actuator.
Technical Specifications – ifm Fail-safe Inductive Sensor GF711S
|
Parameter |
Value |
|
Model |
GF711S (GIFA4004-2PS/SIL2/V4A/US) |
|
Electrical design |
PNP |
|
Output type |
2 × OSSD (A1 and A2) |
|
Enable zone |
0.5…4 mm |
|
Safe switch-off distance (sar) |
6 mm |
|
Operating voltage |
19.2…30 V DC |
|
Current consumption |
< 20 mA |
|
Output current (max) |
100 mA DC |
|
Voltage drop |
≤ 2.5 V (at 30 mA) |
|
Power-on delay |
≤ 1000 ms |
|
Response time |
1 ms |
|
Risk time (faults) |
20 ms |
|
Protection rating |
IP65, IP67 |
|
Housing material |
Stainless steel (316L/1.4404), PBT |
|
Mounting |
Non-flush |
|
Dimensions |
M12 × 1, length 70 mm |
|
Connector |
M12, A-coded, gold-plated |
|
Display indicators |
Green (operation), Yellow (signal) |
|
Weight |
109.45 g |
Standards & Certifications
- EN 60947-5-3 – Fail-safe proximity devices for machine safety
- IEC 61508 / IEC 62061 – Functional Safety, SIL 2 certified
- ISO 13849-1 – Category 2, Performance Level d
- IEC 60947-5-2 – Inductive proximity switches
- EN 61000-4-2 to -8 – EMC immunity (ESD ±8 kV, HF 20 V/m, Burst 2 kV)
- EN 55011 Class B – EMC emission compliance
- IEC 60947-5-2 – Shock and vibration resistance
Applications & Industries
- Machine and factory safety systems
- Industrial automation and robotics
- Safety door and guard monitoring
- Presses, packaging, and assembly machinery
- Metal detection and fail-safe interlock systems
- Ideal for UAE and MENA industries requiring SIL 2 / PL d components
Installation, Commissioning & Maintenance
The GF711S can be mounted using its M12 threaded housing and secured with the supplied lock nuts. Non-flush mounting ensures optimal sensing performance. Electrical connection is achieved via an M12 A-coded connector to the safety controller or evaluation unit.
During commissioning, verify LED status indicators: green for operation and yellow for signal detection. Regular visual inspection and cleaning of the sensor face are sufficient—no recalibration or maintenance is needed due to its maintenance-free continuous operation design.
Why Choose ifm Fail-safe Inductive Sensor GF711S
The ifm GF711S stands out for its combination of safety, precision, and reliability. With proven SIL 2 / PL d compliance, rapid 1 ms response, and rugged stainless-steel housing, it offers dependable machine protection for demanding industrial environments.
By integrating advanced fail-safe design with gold-plated connectivity and high EMC resistance, the GF711S ensures stable, long-term operation in critical safety circuits. For buyers in the UAE and MENA region, Dubai Sensor provides trusted regional access to genuine ifm safety sensors and technical support.
Ordering Guide
- Model: GF711S – ifm Fail-safe Inductive Sensor
- Full code: GIFA4004-2PS/SIL2/V4A/US
- Included accessories: 2 lock nuts
- Pack quantity: 1 piece
- Distributor: Available through Dubai Sensor, the official source for ifm automation and safety solutions.
ifm Fail-safe Inductive Sensor GF711S
Q1. What is the primary function of the ifm Fail-safe Inductive Sensor GF711S?
A1. The GF711S is designed to ensure machine and operator safety by detecting metallic targets and switching to a safe state when the target is undetected. It is suitable for use with safety PLCs, AS-i Safe modules, and evaluation units.
Q2. What safety certifications does the GF711S have?
A2. The GF711S is certified to IEC 61508 (SIL 2), IEC 62061 (SIL 2), and ISO 13849-1 (PL d, Category 2), confirming its reliability for safety-related applications.
Q3. Does the GF711S require a special actuator?
A3. No. Unlike some other electronic safety sensors, the GF711S operates without a special actuator, simplifying installation and integration.
Q4. What type of output does the sensor provide?
A4. It features two OSSD (Output Signal Switching Device) channels with PNP electrical design, ensuring redundant and fail-safe operation.
Q5. What are the electrical requirements for the GF711S?
A5. The operating voltage range is 19.2…30 V DC, with a maximum output current of 100 mA and current consumption below 20 mA.
Q6. What environmental protection does it offer?
A6. The sensor is rated IP65 and IP67, with a stainless-steel (316L) housing for corrosion resistance, and can operate in temperatures from −25°C to +70°C.
Q7. How quickly does the GF711S respond to safety requests?
A7. The response time is just 1 millisecond, providing immediate reaction in critical safety scenarios.
Q8. Can the GF711S be mounted flush with the metal surface?
A8. No. It is non-flush mountable to maintain its rated detection characteristics.
Q9. What is the typical mission time of this sensor?
A9. The GF711S is designed for up to 175,200 operating hours (≈ 20 years) under rated environmental conditions.
Q10. What accessories are supplied with the product?
A10. The sensor is supplied with two lock nuts for secure mounting and has gold-plated contacts to ensure optimal electrical connection.
Documents
Additional Information
Electrical design: |
PNP |
Output function: |
2 x OSSD (A1 and A2) |
Enable zone[mm]: |
0.5...4 |
Housing: |
Threaded type |
Dimensions[mm]: |
M12 x 1 / L = 70 |
System: |
gold-plated contacts |
Type of operation: |
continuous operation (maintenance-free) |
Application: |
Industrial applications |
Rated insulation voltage[V]: |
30 |
Current consumption[mA]: |
< 20 |
Protection class: |
III |
Reverse polarity protection: |
yes |
Max. power-on delay time[ms]: |
1000 |
Max. voltage drop switching output DC[V]: |
2.5; (30 mA) |
Permanent current rating of switching output DC[mA]: |
100 |
Output data: |
Interface type C class 1 |
Output voltage at 24 V: |
compatible with EN 61131-2 inputs type 1, 2 |
Short-circuit protection: |
yes |
Overload protection: |
no |
Max. capacitive load CL_max[nF]: |
20 |
Safe switching-off distance s(ar)[mm]: |
6 |
Response time to safety request[ms]: |
1 |
Response time when approaching the enable zone[ms]: |
1 |
Applications: |
Class C to EN 60654-1 weatherproof application |
Ambient temperature[°C]: |
-25...70 |
Note on ambient temperature: |
operational life ≤ 87600 h |
Ambient temperature[°C]: |
10...40 |
Note on ambient temperature: |
operational life ≤ 175200 h |
Rate of temperature change[K/min]: |
0.5 |
Max. relative air humidity[%]: |
briefly: 5...95 %; permanent: 5...70 % |
Air pressure[kPa]: |
80...106 |
Max. height above sea level[m]: |
2000 |
Ionizing radiation: |
not permissible |
Salt spray: |
no |
Protection: |
IP 65; IP 67 |
EMC: |
IEC 60947-5-2, IEC 60947-5-3, EN 60947-5-3, EN 61000-4-2 ESD (6 kV CD / 8 kV AD), EN 61000-4-3 HF radiated(20 V/m), EN 61000-4-4 Burst(2 kV), EN 61000-4-6 HF conducted(10 V), EN 61000-4-8(30 A/m), EN 55011(class B) |
Shock resistance: |
IEC 60947-5-2 |
Vibration resistance: |
IEC 60947-5-2 |
Complies with the requirements: |
ISO 13849-1: 2015 Category 2, PL d, IEC 61508 SIL 2, IEC 62061 SIL 2 |
MIssion time TM[h]: |
≤ 175200 |
Mission time TM (additional indication): |
20 years |
PFH[1/h]: |
1,0E-07 |
Weight[g]: |
109.45 |
Mounting: |
non-flush mountable |
Thread designation: |
M12 x 1 |
Material: |
stainless steel (1.4404 / 316L); PBT |
Display: |
Power(1 x LED, green), signal(1 x LED, yellow) |
Items supplied: |
lock nuts: 2 |
Remarks: |
Unless stated otherwise, all data refer to the reference target plate to IEC 60947-5-2 over the whole temperature range., (FE360 = ST37K) 12x12x1 mm |
Pack quantity: |
1 pcs. |
Connection: |
Connector: 1 x M12; coding: A; Contacts: gold-plated |
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