BENTLY 3500/91 190782-01

Description

Detailed parameter table

Product introduction

The Bently Nevada 3500/91 190782-01 is a high-reliability system rack power supply module, engineered to provide stable 24V DC power to all components in the 3500 series machinery protection system. As the “power backbone” of the 3500 ecosystem, it ensures consistent operation of critical modules like the 3500/44M-01-00 176449-03 dynamic signal analyzer and 3500/33-1-00 vibration monitor, even in harsh industrial environments where power fluctuations are common.

Unlike basic power supplies, this module supports redundant configurations (N+1), eliminating single points of failure. It automatically detects faults in the primary unit and switches to backup power in less than 5ms—fast enough to prevent data loss or monitoring gaps in high-speed modules like the 3500/44M-01-00 176449-03, which relies on continuous power for capturing high-frequency vibration waveforms.

With a wide input range (85-264V AC or 110-300V DC), the 3500/91 190782-01 adapts to global industrial power standards, making it suitable for installations worldwide. Its integration with the 3500/04-01 system monitoring module provides real-time power status updates, ensuring operators are immediately alerted to issues like overvoltage or overcurrent that could compromise system integrity.

Core advantages and technical highlights

Redundant power assurance: The 3500/91 190782-01’s N+1 redundancy support is critical for safety-critical applications. In a redundant pair, if one unit fails, the second assumes full load in <5ms—preventing data loss in the 3500/44M-01-00 176449-03 during waveform capture or FFT analysis. This seamless failover is essential for SIL 2/3 compliant systems in industries like nuclear power or oil & gas.

Wide input flexibility: Supporting both AC (85-264V) and DC (110-300V) inputs, the module adapts to diverse industrial power grids—from 110V AC in North America to 220V AC in Europe or 240V DC in remote off-grid installations. This versatility eliminates the need for external transformers, simplifying deployment in global facilities.

Comprehensive protection mechanisms: Equipped with overvoltage, overcurrent, short-circuit, and thermal protection, the 3500/91 190782-01 safeguards sensitive components like the 3500/44M-01-00 176449-03 from power anomalies. For example, it shuts down within 10ms of a short circuit, preventing damage to the 44M’s high-speed ADCs or internal memory.

Intelligent status monitoring: The module’s RS-485 port transmits real-time data (voltage, current, temperature) to the 3500/04-01 system monitor, which displays alerts on the 3500/50 286566-02 interface. This enables predictive maintenance—for instance, flagging increasing temperature in a redundant unit before it fails, allowing replacement during scheduled downtime.

Typical application scenarios

In a nuclear power plant’s turbine control system, two 3500/91 190782-01 units operate in redundant mode, powering a 3500 rack containing the 3500/44M-01-00 176449-03 and 3500/33-1-00. During a voltage spike, the primary unit triggers overvoltage protection, and the backup assumes load in 3ms—ensuring the 44M continues capturing turbine vibration data without interruption. The 3500/04-01 logs the event, and operators replace the faulty unit during the next outage.

At an offshore oil platform, the module powers a 3500 system monitoring subsea pumps. Its wide DC input range (110-300V) accommodates the platform’s 240V DC emergency system, ensuring the 3500/44M-01-00 176449-03 remains operational during AC power loss. Thermal protection prevents overheating in the confined rack space, while redundancy ensures pump vibration data is never lost—critical for preventing blowouts.

In a steel mill with unstable power grids, the 3500/91 190782-01’s robust design handles voltage fluctuations common near arc furnaces. It provides clean 24V power to the 3500/44M-01-00 176449-03, which analyzes rolling mill vibrations. Overcurrent protection prevents damage when other modules (like the 3500/60) activate relays, ensuring uninterrupted monitoring of the mill’s critical drive trains.

BENTLY 3500/91 190782-01

Related model recommendations

3500/44M-01-00 176449-03: Dynamic signal analyzer whose high-speed operations depend on stable power from the 3500/91 190782-01.

3500/04-01: System monitoring module that tracks power supply status from the 3500/91 190782-01.

3500/50 286566-02: Operator interface that displays power supply alerts and redundancy status.

3500/05-01-03-00-00-00: Rack interface module that relies on the 3500/91 190782-01 for secure communication power.

170180-01-00 software (v7.0+): Tool for configuring power supply redundancy and analyzing historical power data.

3500/15 127610-01: Auxiliary power distribution module for larger racks, powered by the 3500/91 190782-01.

3500/60: Digital output module whose relay operations are supported by the 3500/91 190782-01’s stable power.

Installation, commissioning and maintenance instructions

Installation preparation: Mount the 3500/91 190782-01 in 2 consecutive slots at the bottom of the 3500 rack (per Bently guidelines), ensuring the system is disconnected from input power. For redundant setups, install a second unit in adjacent slots. Connect input power using 12-gauge wiring, with proper fusing (15A for AC, 10A for DC). Verify backplane alignment to ensure power distribution to modules like the 3500/44M-01-00 176449-03.

Commissioning steps: Apply input power and confirm the “Power” LED illuminates. In redundant configurations, verify both units power on and the “Redundancy” LED activates. Use 170180-01-00 software to monitor output voltage (should stabilize at 24V ±0.5V). Test failover by disconnecting the primary unit—confirm the backup assumes load within 5ms and the 3500/04-01 logs a “Redundancy Switch” event. Calibrate current monitoring to ensure accurate load tracking.

Maintenance suggestions: Inspect quarterly for loose input connections or dust accumulation—clean with compressed air if needed. Measure output voltage monthly to detect drift (>1V deviation indicates potential failure). In redundant setups, rotate primary/backup roles semi-annually to ensure balanced wear. Replace units after 5 years (per Bently’s recommended lifecycle) or if “Fault” LED activates. Coordinate replacement with 3500/44M-01-00 176449-03 shutdowns to avoid data loss.

Service and guarantee commitment

The 3500/91 190782-01 is backed by a 36-month warranty—Bently’s longest for power modules—covering manufacturing defects, including voltage regulation failures, redundancy switching issues, or protection circuit malfunctions. During this period, free repair/replacement is provided, along with technical support for integrating with the 3500/44M-01-00 176449-03 and configuring redundancy.

Our global service team offers 24/7 assistance for power-related issues, with remote diagnostics via the 3500/05-01-03-00-00-00 to analyze voltage trends or failover events. Extended warranty options (up to 6 years) include annual performance testing, firmware updates, and priority replacement during critical outages. Built on Bently’s commitment to system reliability, this module guarantees uninterrupted power to 3500 series components—ensuring machinery protection systems operate when they matter most.