Current/Voltage Input Modules

This module is designed to receive 4-20 mA from 2-wire transmitters and 1-5 V standardized signals. Capable of handling a wide range of input signals, they can also process signals beyond standard ranges. When combined with a transmitter equipped with BRAIN Communication, these modules facilitate communication between the Information and Command Station (ICS) and the transmitter.

Current/Voltage Input Module (Simplified Type)

This module receives 4-20 mA from 2-wire transmitters and 1-5 V standardized signals.

Item Specifications

• Models: AAM10
• Input Signal:
  • Voltage: 1 to 5 V DC
  • Current: 4 to 20 mA DC (*1) (*2)
  • (Supplying power to transmitter is possible)
• Input Resistance:
  • Voltage: 1 MΩ (100 kΩ at power-down)
  • Current: 250 Ω
• Allowable Input:
  • Voltage: -10 to 30 V DC
  • Current: 40 mA DC or less
• Transmitter Power Supply: 25.0 to 25.5 V DC (Output current limit: 60 mA DC or less)
• Auxiliary Voltage Output: None
• Square Root Extraction: None
• Accuracy Rating:
  • Voltage input: ±4 mV
  • Current input: ±16 µA
• Effect of Ambient Temperature Change (10 °C of change):
  • Voltage input: ±8 mV
  • Current input: ±32 µA
  • Auxiliary voltage output: ±24 mV
• Data Update Period: 50 ms
• Current Consumption: 250 mA or less (5.0 V DC)
• Signal Insulation: Input signals are insulated between systems
  • Withstanding voltage: 1500 V AC/min
• Installation: Install in the I/O Module Nest
• Wiring: Connect to the terminal of the I/O Module Nest with M4 screws
• Setting of Input Signal Specifications: Input signal and its ranges are set with software

Notes:

1. This module can be combined with MTL barrier 728. In this case, wiring resistance must be 10 Ω or less, and the lowest operating voltage of the 2-wire transmitter must be 12 V DC or less.
2. When the power of Model AAM10 is off or an abnormal condition occurs, the current input loop is open. Do not share current signals with other receivers. To share them, attach Shunt Resistance (250 Ω) to the module and use it in the voltage mode.
3. AAM10 can be used when the whole system’s software revision is R2.07 or later.