Description
The Bently Nevada 135489-04 is a high-density 4-Channel Relay Module designed for the 3500 Machinery Protection System. While you referenced the “3500/40” (which is the Proximitor Monitor series), the 135489-04 is specifically part of the 3500/40 relay module family. This module provides the critical interface between the 3500 monitoring system and external machinery trip/alarm logic (such as a PLC or Emergency Shutdown System). It allows users to configure “voting logic” to ensure that protective shutdowns only occur based on validated, multi-sensor alarm conditions.
📋 Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | 3500/40 4-Channel Relay Module |
| Model Number | 135489-04 |
| Module Type | Relay Output Module (4-channel) |
| Core Function | External alarm/trip signaling (via PLC or DCS) |
| Relay Type | Normally Energized (NE) or Normally De-Energized (ND) |
| Configuration | Programmable “voting” logic (AND/OR logic) |
| Compatibility | Fully integrated with 3500/40M and 3500/42M monitors |
| Isolation | Each relay is isolated from the rack backplane |
| Mounting | 3500 System Rack |
| Weight | Approx. 0.9 kg |
🚀 Recommended Series Integration
To successfully integrate the 135489-04 into your existing system, it is essential to align it with the appropriate monitoring and communication modules:
- 3500/40M (176449-01) – Proximitor Monitor (provides the inputs for the relay logic)
- 3500/42M (176449-02) – Proximitor/Seismic Monitor (alternative input source)
- 3500/15 (127610-01/125840-01) – Required Power Supply for the rack
- 3500/22M (136180-01) – Transient Data Interface (TDI) for rack-wide communications
- 3500/92 (140734-01) – Communication Gateway (for transmitting data to your PLC/DCS)
- 125744-01 – 3500/25 Keyphasor Module (essential for phase/speed-related trips)
⚠️ Integration Note
It is important to differentiate between the Relay Module (135489-04) and the Proximitor Monitor (3500/40M). The Monitor performs the signal acquisition (vibration, position), while the Relay Module performs the physical output action. If you are experiencing “PLC communication” issues, ensure you are not confusing the 135489-04 (hardwired relay) with the 3500/92 (digital communication gateway).
