MPC4 200-510-017-019

MPC4 200-510-017-019 is the core mechanical protection board card of the Vibra-Meter VM600 system, with SIL2 safety level. It integrates 4 channels of dynamic and 2 channels of rotational speed acquisition and signal analysis capabilities, and can monitor key parameters of the unit such as vibration, shaft displacement, and expansion difference. The threshold and alarm logic are programmable, and it can output analog and switch interlock signals. It is widely used in the protection of major rotating equipment such as steam turbines and compressors. This model belongs to the industrial control stock spare parts, mostly used for the maintenance of old units and system renovation and replacement. It has strong stability and is a classic module for equipment protection in the petrochemical and power fields.

Application

MPC4 200-510-017-019 belongs to the core card of the TSI steam turbine monitoring and protection system. Its core positioning is not merely data collection, but rather safety protection interlock. The main monitoring focuses on key parameters such as shaft vibration, bearing vibration, shaft displacement, expansion difference, eccentricity, and dynamic pressure of large rotating equipment.

MPC4 200-510-017-019 widely applied to core units such as steam turbines, centrifugal compressors, blowers and generators in thermal power, gas-fired power plants, oil refining and chemical industries, LNG and metallurgical industries. Once the vibration or displacement of the equipment exceeds the standard, a rapid interlock signal will be output to trigger an alarm or emergency shutdown to prevent major equipment damage such as shaft friction and bearing collision. At the same time, record the fault data for post-fault traceability. It is mostly used for the matching of new units, the renovation of old VM600 systems, and the replacement of spare parts

Core Functions

1. Multi-type signal acquisition and adaptation

4 independent programmable dynamic channels, which can be connected to eddy current probes, IEPE acceleration sensors, speed sensors, and dynamic pressure transmitters to collect displacement, acceleration, and speed signals; It features 2 speed/phase channels, compatible with magnetic pulse, eddy current and TTL speed probes, supports frequency-divided speed calculation, and simultaneously monitors the sensor gap in real time. It can automatically determine whether the probe is disconnected or short-circuit, achieving self-diagnosis of the sensor.

2. On-board digital Signal processing

Built-in DSP chip, capable of performing programmable high and low pass/band pass digital filtering, signal integration and differentiation operations, and automatically calculating RMS value, peak value, and peak-to-peak value; Supports order tracking, which can extract the vibration amplitude and phase at different rotational speeds, accurately identifying the characteristics of unbalanced and misaligned rotational faults.

3. Programmable protection alarm logic

Early warning and danger threshold can be customized by software, supporting alarm delay, dead zone, and self-locking hold. The speed adaptive trip value can be set. When the unit exceeds the critical speed, the protection threshold will be automatically relaxed to prevent accidental shutdown during the normal speed-up process. Supports multi-channel and/or logical voting, and can be configured with a three-to-two security mechanism.

4. Data output and system communication

It does not contain hard output itself. It works in conjunction with the IOC4T card to output 4-20mA/0-10V analog quantities and connect to the DCS. It is equipped with an RLC16 relay card to output passive switch quantities, triggering ESD shutdown. Supports VM600 dedicated protocol and Modbus RTU, and can transmit real-time monitoring data and fault records to the upper-level SCADA.

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