Yokogawa 3500/32-01-00 125712-01 - Power Supply Module
Description:
The Yokogawa 3500/32-01-00 125712-01 is a Power Supply Module for the Yokogawa 3500 Machinery Management System. This module is a fundamental system component responsible for converting the external plant DC power supply (typically +24 VDC) into the precise and stable regulated voltages required by all the monitoring, relay, and communication modules within the 3500 rack. It ensures the entire protection system operates reliably. The power supply module is designed with redundancy capabilities; when two 3500/32 modules are installed in a rack, they operate in a hot-standby configuration, providing automatic and bumpless switchover in case of a primary power supply failure, thereby ensuring continuous system operation and protecting critical machinery from a loss of monitoring.
Specifications / Parameters
| Parameter | Specification |
|---|---|
| Model / Part Number | 3500/32-01-00 125712-01 |
| Product Type | Power Supply Module |
| Rack Compatibility | Yokogawa 3500 Series Rack (Slot 1 and/or Slot 2) |
| Input Voltage | +20 to +32 VDC (Nominal +24 VDC) |
| Output Power | 45 Watts (typical) |
| Output Voltages | Provides regulated +5 VDC, ±15 VDC, and +24 VDC to the rack backplane. |
| Redundancy | Supports N+1 redundant configuration with a second power supply module. |
| Status Monitoring | Includes LED status indicators for Power On, OK, and Fault conditions. |
| Module Slots | Occupies one of the two dedicated power supply slots in a 3500 series rack. |
| Dimensions (H x W) | Standard 3500 Module Size: Approximately 132 mm (H) x 62 mm (W) |
| Depth | Varies with rack and connector; module itself is shallow, but depth is rack-dependent. |
| Weight | Approximately 0.6 kg (1.3 lb) |
*Note: For mission-critical applications, always verify dimensions, weight, and technical specifications against the latest official Yokogawa 3500/32 data sheet or manual, as these are typical values.*
Application Scenarios
The 3500/32-01-00 125712-01 Power Supply Module is a foundational element in every 3500 system installation. Its application is universal, but its role is crucial in the following scenarios:
System Reliability and Uptime:
Used in every single 3500 rack to provide the essential operating power for all monitoring and protection functions. Without it, the entire rack is inoperative.
High-Availability Critical Machinery Trains:
Installed in a redundant (N+1) configuration in systems protecting critical assets like gas turbines, compressors in a refinery, or main boiler feed pumps in a power plant. This ensures a single power supply failure does not lead to a loss of the entire machinery protection system.
Noise-Sensitive Applications:
The power supply's robust design provides clean, regulated power, which is essential for the accurate operation of sensitive analog monitoring modules (like the 3500/42 or 3500/44M), preventing electrical noise from causing measurement errors or false alarms.
Industrial Environments with Unstable Power:
Its wide input voltage range (+20 to +32 VDC) allows it to tolerate fluctuations in the plant's DC supply, ensuring stable operation even when the primary power source is not perfectly regulated.
Safety and Shutdown Systems:
Forms the core of the power infrastructure for safety-instrumented systems where the reliable operation of shutdown relays is paramount. Its fault monitoring and redundancy features are key to maintaining the system's Safety Integrity Level (SIL).
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