3500/90

Bently

3500/90 specialized rack interface and configuration moduleThe BENTLY 3500/90 is

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Product Details

3500/90 specialized rack interface and configuration module

The BENTLY 3500/90 is a specialized rack interface and configuration module for Bently Nevada’s 3500 Series Rotating Machinery Protection & Monitoring System. Unlike general-purpose communication modules (e.g., 3500/91, 3500/92), it is engineered as a dual-purpose component: serving as a local configuration hub for 3500 racks and a simplified communication gateway for small-to-medium monitoring setups (e.g., standalone turbines, pumps, or compressors). It bridges the gap between on-site configuration needs and basic data transmission to upper-level systems, making it ideal for industrial scenarios where a full-featured multi-rack module is unnecessary but local control and basic connectivity are required. Below is its comprehensive detailed information:

I. Core Technical Parameters

Category	Specific Specifications
Basic Identification	- Model: 3500/90- Product Type: Rack Interface & Local Configuration Module- Applicable System: Bently 3500 Series (exclusively compatible with 3500/10 single-frame racks; not for multi-rack 3500/20 systems)- Core Role: Local rack configuration, basic data communication with upper systems, and rack-level status monitoring
Communication Capabilities	- Local Configuration Interface: 1 x RS-232 serial port (DB9 connector) for direct connection to a laptop/PC (supports Bently’s 3500 Rack Configuration Software for module setup, alarm threshold adjustment, and parameter calibration)- Upper-Level Communication: 1 x RS-485 serial port (terminal block, galvanically isolated) for Modbus RTU protocol—enabling data transmission to legacy DCS/SCADA systems or local HMIs (Human-Machine Interfaces)- Data Transfer Rate:- RS-232: Up to 115.2 kbps (for fast local configuration)- RS-485: Up to 115.2 kbps (half-duplex, multi-drop support for up to 32 devices on a single bus)- Transmitted Data Types: Real-time measurement values (vibration, speed, temperature), alarm status (Warning/Danger), module fault codes, and rack power health
Rack Management Functions	- Configuration Storage: 64 KB non-volatile EEPROM (Electrically Erasable Programmable Read-Only Memory) to store rack-level configuration data (module addressing, sensor types, alarm settings)—ensures settings persist after power cycles or module replacement- Status Monitoring: Scans the health of all installed modules (e.g., 3500/42M vibration, 3500/53 overspeed, 3500/60 temperature) via the 3500/10 rack backplane; aggregates fault information (e.g., sensor open circuit, module overheating) for quick troubleshooting- Power Supervision: Monitors the 3500/15 power supply module’s output voltage (+24V DC ±10%) and current; triggers a "Rack Power Fault" alert if deviations exceed safe limits