1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of the BERNSTEIN IN62-SU1Z SK Limit Switch. Please read this manual carefully before using the product to ensure safe and efficient operation. This device is designed for industrial applications requiring precise position detection.
2. Safety Information
Always observe the following safety precautions to prevent injury or damage to the device:
- Ensure power is disconnected before installation, maintenance, or troubleshooting.
- Installation and wiring should only be performed by qualified personnel.
- Do not exceed the specified electrical ratings (AC 240V, 5A).
- Protect the device from mechanical shock or excessive force.
- Verify proper grounding to prevent electrical hazards.
- The IP67 rating ensures protection against dust and temporary immersion in water, but avoid prolonged submersion or high-pressure water jets.
3. Product Description and Features
The BERNSTEIN IN62-SU1Z SK is a robust limit switch designed for reliable position sensing in industrial environments. Its compact plastic body and plunger actuation make it suitable for various applications.
Figure 3.1: Overview of the BERNSTEIN IN62-SU1Z SK Limit Switch. This image shows the compact plastic housing, the plunger actuator on top, and the side label with product specifications and certifications.
Key Features:
- Model: IN62-SU1Z SK (6083000200)
- Contact Configuration: 1 Normally Closed (NC) and 1 Normally Open (NO) contact.
- Actuation: Plunger type.
- Body Material: Durable thermoplastic plastic.
- Cable Entry: M20.
- Protection Class: IP67 (Dust tight and protected against temporary immersion).
- Switching Voltage: AC 240V.
- Max Switching Current: 5A.
- Operating Temperature Range: -30°C to +75°C.
4. Technical Specifications
| Parameter | Value |
|---|---|
| Model Number | IN62-SU1Z SK (6083000200) |
| Contact Type | 1NC, 1NO |
| Actuation | Plunger |
| Body Material | Thermoplastic Plastic |
| Cable Entry | M20 |
| Protection Class | IP67 |
| Switching Voltage (AC) | 240V |
| Max Switching Current | 5A |
| Operating Temperature (Min) | -30°C |
| Operating Temperature (Max) | +75°C |
| Dimensions (L x W x H) | 74 mm x 31 mm x 30.3 mm (approx. 0.39 x 0.39 x 0.39 inches) |
| Weight | Approx. 37.48 Pounds (Note: This weight seems unusually high for a limit switch, please verify with product packaging.) |
Note: All specifications are subject to change without notice. Please refer to the product datasheet for the most current information.
5. Setup and Installation
5.1 Mounting
- Choose Location: Select a stable mounting surface free from excessive vibration or direct impact. Ensure sufficient space for wiring and plunger operation.
- Secure Mounting: Use appropriate screws to securely fasten the limit switch to the desired position. The switch features mounting holes designed for surface mounting.
- Align Actuator: Position the switch so that the plunger actuator is properly aligned with the moving part it is intended to detect. Ensure the plunger is fully depressed and released within its operational range.
5.2 Wiring
WARNING: Ensure all power is OFF before proceeding with wiring.
- Access Terminals: Open the cover of the limit switch to access the internal screw terminals.
- Cable Entry: Route the electrical cable through the M20 cable entry gland. Ensure the gland is tightened to maintain the IP67 rating.
- Connect Wires: Connect the power and control wires to the appropriate terminals. The switch has 1 Normally Closed (NC) and 1 Normally Open (NO) contact. Refer to the internal wiring diagram (if present on the device) for specific terminal assignments.
- Secure Connections: Ensure all screw terminals are tightened securely to prevent loose connections and potential arcing.
- Close Cover: Replace and secure the cover, ensuring the seal is properly seated to maintain environmental protection.
6. Operation
The BERNSTEIN IN62-SU1Z SK Limit Switch operates by detecting the physical presence or absence of an object. When the plunger actuator is depressed, the internal contacts change state.
- Normally Open (NO) Contact: This contact is open when the plunger is not depressed and closes when the plunger is depressed.
- Normally Closed (NC) Contact: This contact is closed when the plunger is not depressed and opens when the plunger is depressed.
The switch provides a momentary function, meaning the contacts return to their original state once the plunger is released.
Operational Check:
- After installation and wiring, apply power to the circuit.
- Manually actuate the plunger to verify that the connected circuit (e.g., indicator light, motor control) responds as expected.
- Ensure the plunger moves freely and returns to its unactuated position without sticking.
7. Maintenance
The BERNSTEIN IN62-SU1Z SK Limit Switch is designed for low maintenance. However, regular checks can extend its lifespan and ensure reliable operation.
- Periodic Inspection: Regularly inspect the switch for any signs of physical damage, wear, or corrosion.
- Cleaning: If necessary, clean the exterior of the switch with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Cable Gland Check: Periodically check that the cable entry gland is securely tightened to maintain the IP67 rating.
- Actuator Movement: Ensure the plunger actuator moves smoothly and freely without obstruction.
- Electrical Connections: With power disconnected, periodically check terminal screw tightness to ensure good electrical contact.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Switch does not actuate or signal. | No power to circuit; Incorrect wiring; Damaged switch; Plunger not fully depressed. | Check power supply; Verify wiring against diagram; Inspect switch for damage, replace if necessary; Adjust mounting to ensure full plunger travel. |
| Intermittent operation. | Loose wiring connections; Excessive vibration; Worn contacts. | Tighten terminal screws; Reduce vibration or use vibration dampeners; Replace switch if contacts are worn. |
| Plunger sticks or does not return. | Debris obstructing plunger; Mechanical damage; Incorrect mounting alignment. | Clean plunger area; Inspect for physical damage; Re-align switch mounting. |
| IP67 rating compromised (e.g., water ingress). | Loose cable gland; Damaged housing or seal. | Tighten cable gland; Inspect housing and seals for cracks or damage, replace switch if integrity is compromised. |
If the problem persists after attempting these solutions, contact qualified service personnel or BERNSTEIN technical support.
9. Warranty and Support
For information regarding product warranty, please refer to the official BERNSTEIN warranty policy available on their website or contact your local distributor. Keep your purchase receipt as proof of purchase.
Technical Support:
For technical assistance, product inquiries, or service, please contact BERNSTEIN customer support or your authorized BERNSTEIN dealer.
Manufacturer: Bernstein
Website: www.bernstein.eu (Please note: This is a general link and may not be specific to your region. Refer to product packaging or official documentation for precise contact information.)
