Operating Instructions for Schmersal AZ 17-02ZRI B6R Safety Switch

Quick guide from the manual

The Schmersal AZ 17-02ZRI B6R is a safety switch with a separate actuator designed for use with sliding, hinged, and removable safety guards. It is classified as a type 2 interlocking device. Key operational requirements include ensuring the actuator is correctly aligned with the switch and that the electrical connection is performed by authorized personnel in a de-energized state.

Product description

The safety switch is designed to terminate hazardous situations immediately when a safety guard is opened. When the guard is opened, the NC (Normally Closed) contacts are positively opened, and the NO (Normally Open) contacts are closed.

Mounting

General mounting instructions:

• The mounting position must prevent the ingress of dirt and soiling into the used opening.
• Use the supplied base plate for fixing.
• The tightening torque of the fixing screws must not exceed 150 Ncm.
• The enclosure must not be used as an end stop.
• Unused openings must be sealed with slot sealing plugs.

Mounting of the actuator:

• The marks on the actuator opening of the switch and on the actuator must be opposite each other.
• The actuator must be permanently fitted to the safety guard and protected against displacement (e.g., using tamperproof screws or gluing).
• For hinged guards, ensure the point of rotation is within the range of the upper surface of the safety switch.
• The B6L and B6R actuators are factory-set to the smallest radius. To increase the radius, turn the setting screws (a + b) using a 2.0 mm hexagonal key.

Electrical connection

IDC method of termination:

• This method allows connecting flexible wires (0.75 to 1 mm²) without conductor ferrules.
• Strip the wire for 17 to 20 mm.
• Insert the wire into the cable gland and close it.
• Push the conductors into the groove of the cover.
• Screw the cover back on, tightening the Torx T10 screws uniformly to 0.7 to 1 Nm.

Set-up and maintenance

The safety switch is maintenance-free under correct installation and use. A regular visual inspection and functional test are recommended, including:

• Checking for correct installation of the actuator and switch.
• Verifying the integrity of the cable entry and connections.
• Inspecting the switch enclosure for damages.
• Removing particles of dust and soiling.
• Replacing damaged or defective components immediately.

Technical data

The device is rated IP67 and operates in temperatures ranging from -30 °C to +80 °C. It is suitable for use in safety chains up to Cat. 1 / PL c, or Cat. 3 / PL d when used in a 2-channel configuration with a suitable logic unit.