The electronic overspeed detection system of Bentley’s 3500 Series Mechanical Inspection systems is a highly reliable, fast responding redundant tachometer system specifically designed for overspeed protection of machinery. The 3500/53 module can be used to compose a 2-opt-2 or 3-opt-2 (recommended) voting system. The 3500 frame with the overspeed detection system requires a redundant power supply.
Each overspeed detection module receives a signal from an eddy current sensor or magnetic sensor, with the input signal ranging from +10.0V to -24.0V. Signals outside this range are limited within the module. Suitable for Bentley 3300 8mm vortex sensor, 3300 16mm High temperature Vortex sensor (HTPS), 7200 5mm, 8mm, 11mm and 14mm vortex sensor, 3300 RAM vortex sensor, or magnetic sensor.
The Bentley 3500/53 overspeed protection module is designed as a channel module, which is suitable for overspeed protection applications in two or three module groups. The module receives a speed pulse input signal from the proximity sensor or magnetoelectric sensor and uses this input signal to drive the alarm. For machine protection purposes, the module offers four fast response alarm relay outputs. 3500 overspeed protection system is configured into two modules, one table block or three modules, two out of three voting Settings.
Relay module is a circuit protection device used in automatic control system, which is usually composed of electromagnet, contact, reset spring, etc. Relay module has the advantages of small size, light weight, simple structure and cheap price, and is often used in circuit to realize switch control, overload protection and other functions.
The relay module can control the closing and breaking of the contact according to the type and size of the input signal, so as to realize the on-off control of the circuit. At the same time, the relay module also has overload protection function, when there is an overload or short circuit in the circuit, the relay will automatically cut off the circuit to protect the safety of the circuit.
There are many types of relay modules, and different models and specifications can be selected according to different application scenarios and needs. For example, some relay modules can be used in AC or DC circuits, and some can be used in high voltage or high current applications. When selecting a relay module, select it according to the requirements of the actual application scenario, and pay attention to whether the voltage and current parameters of the relay module meet the requirements.
In short, the relay module is an indispensable part of the automatic control system, which can realize the on-off control of the circuit and overload protection and other functions to ensure the stability and safety of the system.
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