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BENTLY135137-01 is a 4-channel position input/output module in the Bently Nevada 3500 series mechanical protection system, fully integrated into the 3500/45 monitoring system. This module is the "position monitoring core" of the 3500 monitoring system, responsible for receiving signals from various position sensors and converting them into digital signals for processing and analysis. In the protection system of large rotating machinery such as steam turbines, compressors, and generators, this position I/O module is an important component that ensures real-time monitoring and protection of key parameters such as axial displacement, differential expansion, and shell expansion.

BENTLY 135137-01 provides 4 independent channels, each of which can be flexibly configured and supports multiple sensor input types:

Eddy current sensor (Proximitor): used for monitoring radial vibration and axial displacement

Rotary Position Sensor (RPT): used for monitoring valve position and actuator position

DC/AC Linear Variable Differential Transformer (DC/AC LVDT): Used for high-precision displacement measurement

Rotary Potentiometer: used for angle and position monitoring

Channels can be programmed in pairs and can perform up to two different monitoring functions simultaneously, greatly enhancing the flexibility and application scope of the module.

The core value of this module lies in its real-time alarm protection capability. By continuously comparing the monitoring parameters with the user's preset alarm values (Alert) and hazard values (Danger), once the monitoring value exceeds the limit, the module will immediately trigger an alarm, drive the relay output, and achieve protection shutdown or sound and light alarm.

The module is equipped with high-precision signal processing algorithms that perform digital signal processing such as filtering, amplification, and calibration to ensure measurement accuracy and reliability. The alarm set points and monitoring parameters can be programmed and configured through the 3500 configuration software to meet the personalized protection needs of different devices.

BENTLY 135137-01 supports monitoring of the following key mechanical parameters:

Thrust Position: Monitor the axial movement of the rotor relative to the cylinder to prevent friction between moving and stationary components

Differential Expansion: Monitor the length difference between the rotor and cylinder due to different coefficients of thermal expansion, to prevent collisions during unit start-up or variable operating conditions

Case Expansion: Monitor the thermal expansion of the casing and evaluate the operating status of the unit

Eccentricity: Monitoring the bending state of the rotor, mainly used for protection during the start stop phase of the unit

Radial Vibration: Monitor the vibration amplitude of the rotor inside the bearing and evaluate the balance state of the bearing and rotor

BENTLY 135137-01 position I/O module is widely used in industrial fields that require the highest level of mechanical protection:

Power industry: monitoring of axial displacement, differential expansion, and shell expansion of steam turbines, gas turbines, and generators

Oil and gas: position monitoring and interlocking protection of compressor units and pump groups

Chemical industry: monitoring the position and status of key equipment such as reactors and mixers

Metallurgical industry: position monitoring of heavy equipment such as rolling mill main motors and fans

Aerospace: Position Control and Monitoring of Engines and Moving Parts

Product model 135137-01

Manufacturer Bently Nevada (Baker Hughes)

Belonging to series 3500/45

Product Type Position Input/Output Module with Internal Terminals

Number of channels: 4 independent channels

Support sensors, eddy current sensors RPT、DC/AC LVDT、 Rotary potentiometer

Monitoring functions include axial displacement, differential expansion, shell expansion, eccentricity, and radial vibration

Input voltage 24 VDC or 125 VDC

Output voltage 24 VDC

Communication interface RS-485

Memory capacity 256 KB

Working temperature -40 ° C to+65 ° C

Storage temperature -40 ° C to+85 ° C

Protection level IP67

Dimensions (height x width x depth) 241 mm x 24.4 mm x 99.1 mm

Weight approximately 0.44 kg

Installation position: 3500 rack full height slot

In the input sampling stage, the PLC sequentially reads in all input states and data in a scanning manner, and stores them in the corresponding units in the I/O mapping area. After the input sampling is completed, it enters the user program execution and output refresh phase. In these two stages, even if the input state and data change, the state and data of the corresponding unit in the I/O mapping area will not change. Therefore, if the input is a pulse signal, the width of the pulse signal must be greater than one scanning period to ensure that the input can be read in under any circumstances. F8652X-HIMA Analog Output Module E

PLC adopts the working mode of "sequential scanning, continuous cycle": ⑴ During each scanning process, input signals are collected centrally, and output signals are refreshed centrally; ⑵ During the input refresh process, when the input port is closed and the program is in the execution phase, the input port has a new state that cannot be read in. The new state is only read in during the next scan of the program; A scanning cycle is divided into input sampling, program execution, and output refresh; The content of the component mapping register changes with the execution of the program. The length of the scanning cycle is determined by three factors: ① the speed at which the CPU executes instructions; ② Refers to the time it occupies; ③ The number of instructions and the scanning speed of PLCs nowadays are very fast. Due to the use of centralized sampling and output, there is a phenomenon of input/output lag, that is, input/output response delay.

The PLC initially developed and produced was mainly used to replace traditional control devices composed of relay contactors, but their operating modes are different:

(1) The relay control device adopts a hard logic parallel operation mode, that is, if the coil of this relay is powered on or off, all contacts of the relay (including its normally open or normally closed contacts) will immediately act simultaneously at any position on the relay control circuit.

(2) The CPU of the PLC uses sequential logic to scan the running mode of the user program, that is, if an output coil or logic coil is turned on or off, all contacts of the coil (including its normally open or normally closed contacts) will not immediately act and must wait until the contact is scanned before acting.

In order to eliminate the differences caused by different operating modes between the two, considering that the action time of various contacts of relay control devices is generally over 100ms, while the time for PLC to scan user programs is generally less than 100ms, PLC adopts a different operating mode from general microcomputers - scanning technology. In situations where I/O response requirements are not high, there is no significant difference in the processing results between PLC and relay control devices.

1. After the PLC is put into operation, the scanning technology generally consists of three stages: input sampling, user program execution, and output refresh. Completing the above three stages is called a scanning cycle. During the entire operation, the CPU of the PLC repeatedly executes the above three stages at a certain scanning speed.

3500/05 System Framework

3500/06 protective box

3500/08 Fault Diagnosis Connection Panel

3500 internal safety barrier

3500 Electrical Insulation Device Interface

3500/15 power supply

3500/20 Framework Interface Module

3500/22M Framework Interface Module with TDI

3500/25 Keyphasor Module

3500/32 4-channel relay module

3500/34 TMR Relay Module

3500/40MP Proximitor Displacement Monitor

3500/42M displacement/velocity acceleration monitoring

3500/44M Aerodynamic Monitor

3500/45 Differential Expansion/Axial Position Monitor

3500/46M Hydroelectric Monitor

3500/50 speed module

3500/53 overspeed detection module

3500/60 and 3500/61 temperature monitors

3500/62 Process Variable Monitor

3500/64M Dynamic Pressure Monitor

3500/72M piston rod position monitor

3500/77M cylinder pressure monitor

3500/90 Communication Gateway

3500/92 Communication Gateway

3500/93 LCD display device

3500/94 VGA display device

3500/95 User Interface Workstation

Bently 3500 series monitoring module from the United States

4-channel displacement monitor module 3500/40-01-00 176449-01 front 125680-01 rear

Vibration module 3500/42-01-00 176449-02 front 128229-01 rear

Power module 3500/15-02-02-00 127610-01 front+125840-01 rear

Framework Interface Module 3500/22-01-02-00 138607-01 Front 146031-02 Rear

Keyphasor Module 3500/25-01-01-00 149369-01 Front 125800-01 Rear

Relay module 3500/32-01-00 125712-01 front 125720-01 rear

Framework Interface Module 3500/20-01-01-00

Framework Interface Module 3500/20-01-02-00

Framework Interface Module 3500/20-02-02-00

Framework Interface Module 3500/22-01-01-00

Keyphasor Module 3500/25-01-01-00

Keyphasor Module 3500/25-01-02-00

Keyphasor Module 3500/25-01-03-00

Power module 3500/15-02-02-00

Keyphasor Module 3500/25-01-03-00

Relay Module 3500/32-01-00

Keyphasor Module 3500/33-01-00

4-channel displacement monitor module 3500/40 (140734-01135489-04)

Vibration module 3500/42-01-00

Vibration module 3500/42-04-00

Vibration module 3500/42-09-00

Differential Expansion/Axial Position Module 3500/45-01

Differential Expansion/Axial Position Module 3500/45-01-00

Differential Expansion/Axial Position Module 3500/45-01-00

Speed module 3500/50-01-00

Bentley 3500 Monitoring Module

Speed module 3500/50-01-00-01

Speed module 3500/50-01-00-01

Speed module 3500/50-01-00-02

Speed module 3500/50-01-01-00-00

Speed module 3500/50-04-00

Overspeed protection module 3500/53-01-00

Temperature Monitor 3500/61 (133819-02)

Temperature Monitor 3500/61 (163179-02)

Temperature Monitor 3500/61 (163179-03)

Temperature Monitor 3500/61-01-00 (163179-02)

Instrument frame 3500/05-01-01-00-00-00

Instrument frame 3500/05-01-02-00-00-00

Instrument frame 3500/05-01-02-00-01

Instrument frame 3500/05-02-04-00-00-00

Power module 3500/15-02-02-00

Framework Interface Module 3500/20-01-01-00

Framework Interface Module 3500/20-01-02-00

Framework Interface Module 3500/20-02-02-00

Framework Interface Module 3500/22-01-01-00

Keyphasor Module 3500/25-01-01-00

Monitoring module 3300/50-01-01-00-00

Monitoring module 3300/50-02-01-00-00

Monitoring module 3300/52-02-00-00

Monitoring module 3300/53-03-02-**-**

Bently module 3300/55-03-01-15-15-00-00-01-00

Bently module 3300/55-03-04-15-15-00-05-05-00

Bently module 3300/65-14-01-00-00-01

Power module 3500/15-02-02-00 127610-01 front+125840-01 rear

Framework Interface Module 3500/22-01-02-00 138607-01 Front 146031-02 Rear

Keyphasor Module 3500/25-01-01-00 149369-01 Front 125800-01 Rear

Relay module 3500/32-01-00 125712-01 front 125720-01 rear

4-channel displacement monitor module 3500/40-01-00 176449-01 front 125680-01 rear

Vibration module 3500/42-01-00 176449-02 front 128229-01 rear

Bentley 3500 System

Power module 3500/15-02-02-00

Framework Interface Module 3500/20-01-01-00

Framework Interface Module 3500/20-01-02-00

Framework Interface Module 3500/20-02-02-00

Framework Interface Module 3500/22-01-01-00

Keyphasor Module 3500/25-01-01-00

Keyphasor Module 3500/25-01-02-00

Keyphasor Module 3500/25-01-03-00

Relay Module 3500/32-01-00

Keyphasor Module 3500/33-01-00

4-channel displacement monitor module 3500/40 (140734-01135489-04)

Vibration module 3500/42-01-00

Vibration module 3500/42-04-00

Vibration module 3500/42-09-00

Differential Expansion/Axial Position Module 3500/45-01

Differential Expansion/Axial Position Module 3500/45-01-00

Differential Expansion/Axial Position Module 3500/45-01-00

Speed module 3500/50-01-00

Speed module 3500/50-01-00-01

Speed module 3500/50-01-00-01

Speed module 3500/50-01-00-02

Speed module 3500/50-01-01-00-00

Speed module 3500/50-04-00

Overspeed protection module 3500/53-01-00

Temperature Monitor 3500/61 (133819-02)

Temperature Monitor 3500/61 (163179-02)

Temperature Monitor 3500/61 (163179-03)

Temperature Monitor 3500/61-01-00 (163179-02&133819-02)

Temperature Monitor 3500/61-03-00

Temperature Monitor 3500/61-03-00

Process Variable Monitoring Module 3500/62 (136294-01)

Process Variable Monitoring Module 3500/62-03-00 (163179-03&136294-01)

Monitoring module 3500/63-01-00

Communication Gateway Module 3500/92-01-01

Communication Gateway Module 3500/92-01-01-00

Communication Gateway Module 3500/92-02-01-00

Communication Gateway Module 3500/92-04-01-00

Display device 3500/93-01-00-00-00

Display device 3500/93-01-00-00-00

Display device 3500/93-02-02-02-00

Display device 3500/93-03-01-00

Display device 3500/93-03-01-00-00-00

Display device 3500/93-03-01-00-00-00

Display device 3500/93-07-01-02-00

Monitoring module 3500-40-01-00

Keyphase channel vibration monitor 3300/16-15-01-03-00-00

Dual channel vibration monitor 3300/16-15-01-03-00-00-00

Monitoring module 3300/20-12-01-00-00-00

Monitoring module 3300/20-12-01-01-00-02-00

Monitoring module 3300/20-12-01-03-00

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BENTLY Bentley 190065A Vibration Monitor

BENTLY Bentley 3300 vibration probe,

BENTLY Bentley 350015 power module, 50032 BENTLY Bentley 4-channel relay module,

BENTLY Bentley 350042M speed and acceleration monitoring module,

BENTLY Bentley 350046M Hydroelectric Monitor,

BENTLY Bentley 350053 overspeed monitoring module,

BENTLY Bentley 350062 Process Variable Monitor

BENTLY Bentley 350005 framework,

BENTLY Bentley 350042M displacement monitor,

BENTLY Bentley 350034 relay module,

BENTLY Bentley 350045 Differential Expansion Axial Position Monitor,

Bentley 3500/64M Dynamic Pressure Monitor

BENTLY Bentley 350050 speed module,

BENTLY Bentley 350072M piston rod position monitor,

BENTLY Bentley 350042M pressure monitor,

BENTLY Bentley 350077M cylinder pressure monitor,

BENTLY Bentley 350092 communication module,

BENTLY Bentley 350093 display module,

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