Bently Nevada 3500/53 133396-01 Overspeed Detection I/O Module
The rear I/O module paired with a 3500/53 overspeed monitor in a redundant machine-protection architecture.
Key Information
3500/53 133396-01 is the Overspeed Detection I/O Module listed for the Bently Nevada 3500/53 system. It is the rear connection module, not the front signal-processing monitor.
A complete overspeed channel combines this I/O module with the matched front monitor, approved speed transducer, redundant rack power and controlled trip logic.
Functions
- Connects the field speed-sensor circuit to the paired 3500/53 monitor.
- Carries the I/O paths needed for speed processing, recorder indication and trip-channel operation.
- Supports a channel used within two-module or three-module overspeed architectures.
- Keeps field wiring separated from the removable front monitor.
Specifications
| Manufacturer | Bently Nevada, a Baker Hughes business |
|---|---|
| Complete Identification | 3500/53 133396-01 |
| Product Family | 3500/53 Electronic Overspeed Detection System |
| Module Role | Overspeed Detection I/O Module |
| Rack Position | Rear slot behind the corresponding front monitor |
| Companion Front Module | 133388-01 |
| Supported Sensor Families | Compatible proximity probes or magnetic pickups |
| System Requirement | Redundant rack power supplies |
Installation
- Label every rear terminal and confirm sensor polarity before moving conductors.
- Match the I/O module directly behind its associated front monitor slot.
- Verify the redundant power arrangement and the selected two-channel or three-channel voting design.
- Perform the site-approved overspeed proof test after wiring or module replacement.
Lifecycle
- Keep the I/O identity, front-monitor identity and trip wiring diagram together in the protection-system record.
- Do not replace this rear module with a general tachometer I/O card.
- Maintain proof-test intervals and bypass authorization under the site safety lifecycle.
FAQ
Is 3500/53 133396-01 the front overspeed monitor?
No. It is the rear I/O module; the signal-processing front module is a separately identified component.
Can 3500/53 133396-01 be used with a 3500/50M tachometer?
No. The tachometer and overspeed systems use different modules and have different protection purposes.
What rack power arrangement is required for 3500/53 133396-01?
The overspeed system must be installed in a rack with redundant power supplies.
What should be supplied when ordering 3500/53 133396-01?
Provide the front-monitor part, rack slot, sensor model, terminal schedule and voting-system drawing.
Can one 3500/53 133396-01 channel provide a complete voted trip system?
No. The required two-channel or three-channel architecture must be implemented and validated as a system.
What test follows replacement of 3500/53 133396-01?
Carry out the approved sensor-to-trip proof test, including bypass indication and voting response.
