Bently Nevada 3500/25 Key phase input/output Module 3500-25

Description

Bently Nevada 3500/25 Key phase input/output module

summarize
The Bently Nevada 3500/25 key phase input/output module is a half-height, dual-channel module that provides key trust numbers to monitor modules in the 3500 rack. The main function of this module is to detect alignment when the key phase marker on the axis is aligned with the key phase sensor and convert the input signal into a digital key trust signal. These digital signals can be used to indicate when the key phase marker on the shaft coincides with the key phase sensor, thus realizing the monitoring and protection of the condition of the mechanical equipment.

Structure and function
The Bently Nevada 3500/25 key phase input/output module can receive input signals from close probes or magnetic sensors and convert these signals into digital key confidence signals. In a normal configuration, the 3500 mechanical protection system can accept up to four key trust signals. If more keys are required, this can be done through a paired configuration, accepting up to eight keys.

In addition, this module also has different types of input and output modules such as internal terminal isolated I/O module, isolated external terminal I/O module, internal terminal non-isolated I/O module and non-isolated external terminal I/O module to adapt to different working environments and needs.

Use and configuration
The Bently Nevada 3500/25 key phase input/output module can maintain full backward compatibility with existing Keyphasor modules, so it can be used in legacy systems. During the configuration, the user can choose different module quantity and layout mode according to the need to meet the specific requirements of the system. For example, when a triple module redundancy (TMR) application requires system key phase input, the 3500 system should use two key phase modules. These modules work in parallel to provide primary and secondary key confidence numbers to other modules in the rack.

Matters needing attention
When using the Bently Nevada 3500/25 key phase input/output module, it is important to note that each key phase module can receive 2 signals from the eddy current sensor or the electromagnetic sensor. The input signals range from -0.8V to -21.0V (uninsulated I/O modules) and +5V to -11V (insulated I/O modules). The shaft speed of a passive electromagnetic sensor must be greater than 200rpm (3.3Hz).

Sum up
The Bently Nevada 3500/25 key phase input/output module is an important part of the mechanical condition monitoring system, which can effectively detect the operating status of the mechanical equipment and issue timely alarms to prevent the occurrence of equipment damage and production accidents. During the use of the system, users need to configure and use the system properly according to the actual situation and requirements.