Yokogawa 3500/42 140482-01 - Quad-Channel Relay Module
Description:
The Yokogawa 3500/42 140482-01 is a Quad-Channel Relay Module designed for the Yokogawa 3500 Machinery Management System. This module is a critical component for machinery protection and monitoring, providing four independent relay channels. Each channel can be configured to trigger an alarm or shutdown command based on input from other monitoring modules within the 3500 rack (such as vibration, speed, or temperature modules). Its primary function is to convert the system's monitoring logic into physical, hardwired relay contacts to initiate actions like alerting plant personnel, starting backup systems, or safely shutting down critical machinery to prevent damage.
Specifications / Parameters
| Parameter | Specification |
|---|---|
| Model / Part Number | 3500/42 140482-01 |
| Product Type | Quad-Channel Relay Module |
| Rack Compatibility | Yokogawa 3500 Series Rack |
| Number of Channels | 4 independent channels |
| Contact Form | Form C (SPDT - Single Pole Double Throw) for each channel |
| Contact Rating | Consult the official manual for specific current/voltage ratings (e.g., 2A @ 30VDC resistive). |
| Power Supply | Powered by the 3500 Rack Backplane |
| Module Slots | Occupies a single slot 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 0.45 kg (1.0 lb) |
*Note: For mission-critical applications, always verify dimensions, weight, and contact ratings against the latest official Yokogawa 3500/42 data sheet or manual, as these are typical values.*
Application Scenarios
The 3500/42 Relay Module is deployed in various industrial settings where the continuous health and safety of rotating machinery are paramount. Key application scenarios include:
Critical Machinery Shutdown Systems:
Used in gas turbines, steam turbines, compressors, and large pumps. If a parameter like overspeed, excessive vibration, or high bearing temperature is detected, the relay triggers an immediate shutdown to prevent catastrophic failure.
Alarm Annunciation and Operator Awareness:
Activates visual and audible alarms in a control room when a machine parameter enters a warning or danger state (e.g., "High Vibration Alarm"). This allows operators to investigate and take preventive action before a shutdown is required.
Process Control and Sequencing:
Can be used to start or stop auxiliary equipment. For example, if a main pump fails (as detected by a vibration or speed module), the relay can automatically start a standby pump to maintain the process.
Power Generation Plants:
Essential for protecting generators, boiler feed pumps, and fans. It ensures the unit operates within safe limits, protecting both the equipment and the stability of the power grid.
Oil & Gas and Petrochemical Industries:
Protects pipeline compressors and offshore platform machinery, where unplanned downtime can have significant safety and economic consequences.
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7×24 hours technical consultation, from selection guidance to installation and commissioning to provide full life cycle service (paid)
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