Description
The Bently Nevada 3500/22M-01-01-00 is a high-performance Transient Data Interface (TDI) module designed for the 3500 Machinery Protection System rack. The TDI serves as the primary gateway between the 3500 monitoring rack and Bently Nevada’s System 1 Asset Management and Diagnostic Software. It continuously collects steady-state static data, dynamic waveform data, and crucial startup/shutdown transient waveforms (such as cascade and orbit plots) from all adjacent machinery protection modules.
Commercial Availability & Terms
- Condition: New Original (Factory Sealed Surplus) or Refurbished (Fully Bench Tested)
- Warranty: 12-Month Comprehensive Industrial Warranty
- Availability: In Stock
- Standard Lead Time: Ships within 1–2 business days via global express delivery carriers
- Pricing Note: Price varies depending on market lifecycle status, component obsolescence, and regional warehouse allocations. Contact our technical sales engineering division for a firm, time-bound quotation.
Part Number & Option Code Breakdown
The model designation 3500/22M-01-01-00 specifies the precise communication ports, approvals, and physical interfaces engineered into this specific module:
- 3500/22M: Transient Data Interface Module Platform (utilizes M-series processing capability for advanced data logging).
- -01 (Standard I/O Module): Configured with 10Base-T/100Base-TX Ethernet and an RS232/RS422 Serial port interface.
- -01 (Agency Approval Option): Includes CSA/NRTL/C approvals for Class I, Division 2, Groups A, B, C, and D hazardous environments.
- -00 (Reserved/Standard): Factory default hardware revision level.
Technical Specifications
| Parameter | Value / Specification |
| System Placement | Installs strictly into the dedicated “Slot 1” (adjacent to power supplies) of a 3500 rack |
| Ethernet Connection | RJ-45 port supporting 10Base-T or 100Base-TX auto-negotiation |
| Serial Connection | RS-232 / RS-422 communications (via 9-pin D-sub connectors on I/O module) |
| Configuration Interface | Front-panel USB (Type-B) connection for direct laptop connection |
| Static Data Capture | Continuous collection of values like overall amplitude, gap voltage, and 1X amplitude/phase |
| Dynamic Data Capture | High-resolution raw waveform sampling for deep diagnostic analysis |
| Operating Temperature | −30 to +65 °C (−22 to +149 °F) continuous ambient range |
| Power Consumption | Approximately 7.7 W typical draw from the internal rack backplane |
Field Integration & Architectural Constraints
When deploying or configuring a 3500/22M-01-01-00 TDI module within a critical machinery protection system, several field constraints must be followed:
- Slot Specificity and Redundancy Options: The TDI module must be placed in the slot immediately to the right of the rack power supplies. While the 3500 rack allows for dual-redundant power supplies, the rack can only contain one active TDI module. If communication redundancy is required across a plant network, you must utilize the separate Ethernet ports or segment the network at the external switch layer.
- Impact of “Rack Reset” Lines: The TDI features a hardware “Rack Reset” contact terminal on its rear I/O module. Shorting this terminal to its ground reference clears latched alarms across all monitors in the rack (such as vibration or thrust position trips). Do not wire this line in parallel with critical emergency shutdown relays unless it is strictly intended as a manual maintenance override switch.
- Configuration Keylock Switch: The front face of the 3500/22M features a physical, two-position security keylock switch (RUN/PROGRAM). To push configuration edits, firmware adjustments, or sensor scale modifications via the 3500 Rack Configuration Software, the key must be turned to “PROGRAM.” Once commissioning is complete, the key must be turned to “RUN” and removed to prevent unauthorized firmware edits that could compromise machinery protection loops.
Frequently Asked Questions
What differentiates the older 3500/20 RIM from the newer 3500/22M TDI?
The 3500/20 Rack Interface Module (RIM) was the standard communication card on older 3500 systems and lacked the capability to capture continuous high-resolution transient waveforms during sudden machine trips. The 3500/22M Transient Data Interface (TDI) features a much more powerful processor and internal buffer memory. It acts as both a system monitor interface and a high-speed data logger that feeds raw dynamic waveform data directly to System 1 diagnostic software.
Can this module be hot-swapped while the machinery is operating?
Yes, the 3500 system architecture supports the hot-swapping of the 3500/22M module without shutting down the rack. Because the actual machinery trip logic (Alert/Danger statuses) is computed locally inside the individual monitor modules (e.g., 3500/42M or 3500/40M) and routed via a dedicated analog backplane to the relay modules, pulling the TDI card will not disable the active physical protection loops. However, all external communications to the DCS, SCADA, or System 1 platforms will drop until the new module initializes.
How do I troubleshoot a flashing “OK” LED on the module?
A steady green OK LED indicates the module is healthy and functioning. A flashing green LED indicates that the module is in an unconfigured state, or that the front security key is currently turned to the “PROGRAM” position. If the LED flashes amber or red, it signals an internal diagnostic hardware failure, a bootloader corruption, or an addressing conflict on the internal communication bus, which will require a full factory diagnostic reset.
