Product Details
The 3500/25-02-01-01 is an Enhanced Keyphasor Module manufactured by Bently Nevada for the 3500 Machinery Protection System. Operating as a half-height module assembly, it receives raw signals from shaft transducers and converts them into digital Keyphasor timing pulses used by other monitor modules in the rack. This specific unit is configured with two half-height 2-channel cards, internal termination I/O connections, and Class 1, Division 2 hazardous area approval.
Hardware Configuration and Ordering Options
The ordering digits define the channel count, backplane interface, and certification level for this unit:
- Channel Option (-02): Includes two 2-channel half-height Keyphasor cards.
- I/O Module Option (-01): Internal termination I/O module with direct terminal strip connections.
- Agency Approval Option (-01): CSA / NRTL / C certified for Class 1, Division 2 hazardous area installations.
Phase Reference Processing and Signal Routing
The Keyphasor module provides phase reference and speed data across the 3500 rack backplane, allowing vibration monitors to track phase angle and rotational speed. The internal termination I/O card mounts directly to the rear backplane behind the main monitor module, accepting transducer field lead wires without requiring separate external termination blocks.
| Parameter | Specification |
|---|---|
| Model | 3500/25-02-01-01 |
| Brand | Bently Nevada |
| Product Type | Keyphasor Module |
| Channel Option | Two 2-channel half-height cards (-02) |
| I/O Module Option | Internal Terminations (-01) |
| Agency Approval | CSA / NRTL / C (Class 1, Division 2) (-01) |
| Shipping Weight | 32.00 lbs |
Frequently Asked Questions
Q: What channel configuration is supplied with the Bently Nevada 3500/25-02-01-01 module?
A: The -02 option supplies two half-height 2-channel Keyphasor cards for processing phase reference signals within the rack.
Q: What terminal interface does the -01 I/O module option provide?
A: The -01 option provides an I/O module with internal terminations, allowing field wiring to land directly onto screw terminals on the rear module.
Q: Is the 3500/25-02-01-01 rated for hazardous area operation?
A: Yes, the -01 agency approval suffix indicates CSA / NRTL / C certification rated for Class 1, Division 2 environments.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Understanding VFD Mechanical Brake Logic and Control in Industrial Automation
Variable Frequency Drives (VFDs) play a crucial role in modern industrial automation by controlling motor speed, torque, and acceleration. However, high-inertia loads and vertical lifting systems require precise mechanical braking logic to ensure operational safety and prevent equipment damage.
Why Programmable Logic Controllers Drop into Stop Mode: An Expert Analysis
Industrial automation systems rely heavily on Programmable Logic Controllers (PLCs) to maintain uninterrupted production. When a PLC unexpectedly shifts from Run to Stop mode, whole manufacturing lines stall.
As control systems evolve across modern factory automation, understanding the root causes of these interruptions helps engineers minimize costly downtime. This technical guide breaks down why PLCs trip into Stop mode and provides practical strategies to mitigate system faults.
Understanding Root Causes of Unplanned PLC Stop Mode in Industrial Automation
Modern Programmable Logic Controllers manage execution through distinct operational states: Run, Stop, Start-Up, and Hold. During power-up, a controller initializes memory registers within Stop mode before briefly transitioning to Start-Up mode. During this phase, internal self-diagnostics evaluate system integrity across hardware and user programs. If the controller detects no critical faults, it enters Run mode to execute the control program continuously. However, any severe system anomaly forces the CPU back into Stop mode immediately to prevent erratic machine behavior across the plant floor.