Key Technical Specifications
- Product Model: 3500/22M (146031-01)
- Manufacturer: Bently Nevada
- Module Type: Transient Data Interface (TDI)
- Ethernet Interface: 10Base-T / 100Base-TX (RJ-45)
- Rack Position: Slot 1 (Adjacent to Power Supply)
- Data Capture: Static data (Dynamic requires optional enable disk)
- Input Signal Range: -10 VDC to +10 VDC
- Power Consumption: 10.5 Watts
- Operating Temperature: -30°C to +65°C
- Storage Temperature: -40°C to +85°C
- Dimensions (H×W×D): 241.3 mm × 24.4 mm × 241.8 mm
- Weight: 0.91 kg
Product Introduction
The Bently Nevada 3500/22M (146031-01) is a Transient Data Interface (TDI) module designed for the 3500 Machinery Protection System. It serves as the primary communication link between the 3500 rack and host software, such as System 1 or 3500 Configuration Software.This module integrates the functions of a 3500/20 Rack Interface Module (RIM) with the data collection capabilities of a TDXnet processor. It continuously captures steady-state waveform data and transmits it via a 10/100 Base-T Ethernet link. (Note: Capturing high-resolution dynamic transient data requires an additional optional channel enable disk).
Installation & Configuration Guide
Preparation (10 min)
Verify chassis power is OFF and locked out. Identify the designated Slot 1 position immediately adjacent to the power supply. Ensure you have the correct 146031-01 10/100 Base-T module and an RJ-45 Ethernet cable. Wear an ESD wrist strap.Removal (5–10 min)
Release the front panel ejector handles. Unscrew the retaining screws and pull the module straight out along the card guides. Inspect the backplane connectors for bent pins.Installation (10 min)
Align the 3500/22M module with the Slot 1 card guides. Slide the board in until the backplane connectors seat fully. Tighten retaining screws and close the ejector handles to lock the module. Connect the RJ-45 cable to the front panel port.Power-On & Test (10 min)
Restore chassis power. Observe the front panel LEDs for operating status and OK relay indication. Connect a laptop to the USB-B configuration port to verify communication. Check System 1 software to confirm the module is recognized and transmitting static data.
Troubleshooting Quick Reference
| Symptom | Probable Cause | First Check |
|---|---|---|
| No LED activity | Backplane power failure | Measure +5V and +3.3V at Slot 1 connector |
| Comm loss to host | Ethernet link failure | Verify 10/100 Base-T cable; check switch port status |
| Missing transient data | Feature not enabled | Verify optional dynamic data enable disk is installed |
| Rack OK relay open | Module fault detected | Check System 1 event log for specific TDI errors |
| USB config fails | Ground loop / isolation issue | Ensure laptop is battery-powered; use isolated USB cable |
| Slot 1 conflict | RIM module present | Remove 3500/20 RIM; TDI replaces RIM functionality |
Dimensions, Mounting & Wiring Notes
- Form Factor: Standard 3500 Full-Height Front Slot
- Mounting: Slot 1 only (requires removal of 3500/20 RIM if present)
- Front Panel I/O: RJ-45 Ethernet Port, USB-B Configuration Port
- Backplane Connection: P1/P2 standard 3500 VME-style connectors
- Wiring Note: Use the specific USB cable (P/N 123M4610) for configuration to maintain chassis-to-ground isolation.
- Note: Always photograph jumper and DIP switch positions before removal. The TDI is not a critical protection channel, but it is required for host software communication.
FAQ
Can I use this 146031-01 module in place of a 3500/20 RIM?
Yes. The 3500/22M TDI fully replaces the 3500/20 Rack Interface Module. You must remove the RIM and install the TDI in Slot 1.I need to capture high-resolution transient waveforms. Will this module do it?
The 146031-01 captures static data by default. To record dynamic or high-resolution transient data, you must install an optional dynamic data enable disk.Can I hot-swap this module while the 3500 rack is powered on?
Yes. The 3500/22M supports hot-swapping. Removing or replacing the TDI will not affect the operation of other monitoring modules in the rack.What software is compatible with this TDI module?
It communicates with Bently Nevada System 1 State Monitoring and Diagnostic Software, as well as 3500 System Configuration Software via Ethernet or USB.I’m getting a comm error. How do I isolate the problem?
First, check the physical 10/100 Base-T link. Next, connect via the USB-B port to rule out network issues. Finally, check the System 1 event log for hardware fault codes.Is this module required for basic machinery protection?
No. The TDI handles communication and data collection, but it is not part of the critical protection voting logic. The 3500 system will continue to execute alarms and trips even if the TDI fails.
