Schneider Electric 140CRA93100C Adapter Module
Product Introduction
The 140CRA93100C functions as a dedicated adapter module. It belongs to the Modicon Quantum product family. This device connects remote I/O drops to the main rack. A single module supports up to 27 I/O modules.
For communication, it uses a 75 Ohm coaxial cable. This ensures stable signal integrity over longer distances. The transmission rate reaches 1544 Mbit/s. Therefore, data moves quickly between the controller and field devices.
Additionally, the 140CRA93100C offers a dynamic range of 35 dB. This allows reliable operation even with signal attenuation. The isolation voltage stands at 500 V DC. You get strong protection against ground loops and surges.
Technical Specifications
Max I/O modules supported: 27
Cable type: 75 Ohm coaxial
Transmission rate: 1544 Mbit/s
Dynamic range: 35 dB
Isolation voltage: 500 V
Power dissipation: 3 W
Bus current: 600 mA
Electrical connection: 1 female connector
Specifically, the female connector makes field cabling simple. You just plug in the coaxial cable directly. The bus current requirement is 600 mA. Ensure your Quantum rack has enough spare capacity.
Moreover, the 140CRA93100C dissipates only 3 W of power. This keeps heat buildup very low inside the cabinet. You can place it next to other modules without cooling concerns.
Environmental Immunity and Protection
This adapter module resists electrostatic discharge effectively. The rating is 4 kV for contact discharge. For air discharge, it handles up to 8 kV. Consequently, it survives accidental static shocks during maintenance.
Furthermore, electromagnetic field immunity reaches 10 V/m. This protects the 140CRA93100C from nearby drives or radio sources. No data corruption occurs in noisy industrial environments.
The operating altitude follows standard Quantum specifications. Humidity and temperature ranges match other Quantum I/O modules. No conformal coating is listed, so avoid direct moisture exposure.
Frequently Asked Questions (FAQ)
1. Can the 140CRA93100C work with fiber optic cables?
No, this module specifically requires 75 Ohm coaxial cable. For fiber optic drops, choose a different Quantum adapter model.
2. What happens if I connect more than 27 I/O modules?
The 140CRA93100C will not recognize the extra modules. System performance may become unstable or fail to start.
3. How long can the coaxial cable be for this adapter?
Schneider recommends keeping cable length under 500 meters. Longer runs may exceed the 35 dB dynamic range limit.
4. Does the 140CRA93100C support hot swapping?
No, always power down the rack before inserting or removing this module. Hot swapping may damage the backplane or the adapter.
5. What is the purpose of the 500V isolation voltage?
It separates the communication circuit from the backplane ground. This prevents ground loops and protects against voltage spikes.
