Series AZ 200

Description

The AZ 200 pulse-echo based non-contact safety interlock is designed for use with movable machine guards/access gates which must be closed for operator safety.

The AZ 200 consists of an interlock switch and actuator unit with door handle and optional emergency exit handle. The actuator is always inserted into its housing, protecting the actuator and the operator against damage and injury. Utilizing pulse-echo sensor technology, the actuator and interlock can have an offset of ±5 mm and the actuator still engages the interlock. A sensor stimulates a coil in the actuator, which in turns sends a signal back to the sensor. The pulse-echo technology provides diagnostic information and detects and indicates any misalignment at an early stage. Two different actuator designs accommodate both sliding or hinged guards.

The AZ 200 interlock is a dual channel design with two shortcircuit proof, safe PNP outputs, each of which can switch up to 250 mA. It features a choice of one or three electronic diagnostic outputs. These diagnostic outputs signal errors before the safety outputs are switched off, thus enabling a controlled shutdown of the machine.

With continuous internal function tests, the monitoring of the safety outputs and the use of door detection sensors, AZ 200 safety interlocks can be wired in series without detriment to the control category. Series wired AZ 200s continue to fulfill the requirements of Control Category 4 according to EN 954-1 with door detection sensors (without the need of a second switch).

Features & Benefits

• Tamper resistant … frequency-matched switch and actuator required for operation.
• Non-contact sensing … for long term reliability.
• Dual purpose handle … modern, ergonomic design—no additional door handles are needed.
• Integral LED diagnostics … indicates operating states
• Integral self-monitoring and door detection sensors … satisfy requirements of Safety Control Category 4. See Note Below.
• Designed for "daisy chaining … up to 200 m.
• One-hand emergency release … hazardous area can be left quickly and safely.
• Switch and actuator do not protrude into door opening … no risk of injury or damage from a protruding actuator.
• Dual PNP 250 mA safety outputs … for application versatility.

Typical Applications

The AZ 200 is intended for use as a safety interlock switch on movable machine guards which, when open, expose the operator/maintenance personnel to machine hazards. Typical applications are the interlocking of protective gratings, access panels and other movable guards. The AZ 200 is suitable for both sliding guards and hinged guards.

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