EMERSON A6500-UM Universal Measurement Card

Overview

The A6500-UM Universal Measurement Card is a core component of the AMS 6500 ATG machinery protection system. It offers versatile measurement and monitoring capabilities, supporting a wide range of sensors and providing both digital and analog outputs. The card transmits signals via Modbus protocols for seamless integration with host computers or analysis systems. It operates within the A6500-SR System Rack, providing power and signal connections for easy integration into machinery protection systems.

Technical Specifications

General Features

• Input Channels: 2 sensor input channels (independent or combined based on measurement mode).
• Sensor Types Supported:
  • Eddy-current
  • Piezoelectric (accelerometer or velometer)
  • Seismic (electrodynamic)
  • Low Frequency (LF) bearing vibration
  • Hall-effect
  • LVDT (with A6500-LC)
• Digital I/O: 5 digital inputs and 6 digital outputs.
• Signal Processing: Signals are transmitted through an internal RS-485 bus to the A6500-CC Com Card.
• Communication Protocols: Modbus RTU and Modbus TCP/IP for data transmission to host systems.
• USB Connectivity: Configuration and visualization of results through the USB socket on the A6500-CC Com Card.
• Analog Output: 0/4 - 20 mA, with common ground and electrical isolation from system supply.

Electrical and Performance Specifications

• Signal Input Voltage Range: -1 V to -22 V.
• Frequency Range: 0 to 18,750 Hz, with attenuation of less than 0.1 dB.
• Supply Voltage: Selectable -23.25 V / -26.0 V DC, short-circuit proof.
• Maximum Supply Load: 35 mA.
• Supply Accuracy: ±1%.
• Supply Load Variation: ±1% for loads from 0 to 100%.
• Temperature Drift: ±1% within the operating temperature range of -20°C to +70°C.

System Integration

• Rack Compatibility: Operates in the A6500-SR System Rack, which provides connections for power and signals.

Measurement Functions

• Q Shaft Absolute Vibration
• Q Shaft Relative Vibration
• Q Shaft Eccentricity
• Q Case Piezoelectric Vibration
• Q Thrust and Rod Position
• Differential and Case Expansion
• Valve Position
• Q Speed and Key