Yokogawa SSC50D-F2524 ProSafe-RS Series Datasheet & Technical Manual

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Yokogawa SSC50D-F2524 ProSafe-RS Duplexed Safety Control Unit Configured for high-reliability safety applications in the ProSafe-RS Safety Instrumented System (SIS), the...

رمز المنتج: SSC50D-F2524

Manufacturer: Yokogawa
Product No.: SSC50D-F2524
Product Type: Safety CPU Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 2500g
Shipping port: Xiamen
Warranty: 12 months

وصف التقييمات

Yokogawa SSC50D-F2524 ProSafe-RS Duplexed Safety Control Unit

Configured for high-reliability safety applications in the ProSafe-RS Safety Instrumented System (SIS), the Yokogawa SSC50D-F2524 (SSC50D Duplexed Safety Control Unit) provides direct physical/electrical execution.

Suffix Breakdown & Model Matrix

Suffix Code	Functional Description
SSC50D	Base model designation for the Duplexed Safety Control Unit chassis
-F	Vnet/IP communication protocol interface configuration
2	Dual-redundant utility power supply architecture
5	Basic construction type with no integrated explosion protection metrics
2	24 V DC system input voltage rating
4	ISA Standard G3 conformal coating with expanded environmental temperature compliance
/CFS1100	Integrated Safety Control Function License activation key

Hardware Specifications

Parameter	Specification
Model	SSC50D-F2524
Brand	Yokogawa
Origin	Japan
Weight	0.3 to 2.5 kg maximum variance depending on populated sub-cards
Dimensions	Standard compact 19-inch rack-mount or wall-bracket footprint
Operating Temp	-20 to +60 deg C (ISA G3 compliant environments)
Power Consumption	~6 W typical operating load draw
System Voltage	24 V DC nominal input (Supports dual-redundant power configurations)
Safety Integrity Level	SIL3 certified by TUV Rheinland (IEC 61508 compliance)
Communication Protocol	Vnet/IP high-speed deterministic network interface
Node Node Capacity	Supports up to 9 safety node units for expanded I/O tracking
Signal Input Profiles	Voltage loops (0-10 V) and Current loops (4-20 mA)
Signal Output Profiles	Analog user-selectable ranges: 4-20 mA or 0-10 V
Hardware Scan Precision	+-0.1% of Full Scale accuracy window
Step Response Velocity	Less than 300 ms loop execution for a full-scale change
Operating Humidity	5% to 95% RH, non-condensing

High-Reliability Safety Control (SIS) Properties

The Yokogawa SSC50D-F2524 achieves SIL3 certification by executing safety logic within a duplexed, dual-CPU processor pipeline that enforces hardware-level fault tolerance. The unit uses a fault-safe state execution engine to continuously verify synchronized calculation steps between the internal processors. If a discrepancy or internal bus failure is detected, built-in self-diagnostics isolate the fault and trigger an immediate fail-safe state execution or hot-swap sequence. This duplexed layout, combined with full galvanic isolation across the backplane data tracks, ensures that single-point electronic failures are detected instantly without degrading active emergency shutdown (ESD) or fire and gas (F&G) protection matrices.

Frequently Asked Questions

Q: How does the duplexed processor setup coordinate fault detection during active safety scans?

A: The control unit runs dual-redundant processing lines where both CPUs calculate the safety logic in lockstep. Internal hardware cross-checking circuits compare data registers continuously; any processing fault or timing drift triggers automated diagnostics to switch tasks to the standby processor or force the network into a defined fail-safe state.

Q: What are the exact physical and software constraints when integrating additional safety node units?

A: The hardware architecture supports up to 9 downstream safety node units connected over the Vnet/IP network path. To register these expansion nodes, the primary controller must run software version R4.01 or later with an active CFS1100 Safety Control Function License enabled in the system matrix.

Q: How does the integrated memory protection sub-layer behave during a sudden drop in 24 V DC input power?

A: The module contains a hardware-level memory protection circuit that detects incoming voltage drops on the 24 V DC rails. When a power loss crosses the low threshold, the system writes all current safety states, logic variables, and error logs directly to non-volatile storage before the hardware shuts down, preventing data corruption.

Field Installation Guidelines

Chassis Rack Seating: Insert the duplexed controller into a standard 19-inch instrumentation rack or fix it to a flat wall array using the designated mounting brackets. Tighten all chassis fasteners completely to ground the frame to the rack and minimize low-frequency industrial vibration.
Vnet/IP Redundant Networking: Connect the primary and secondary high-speed Vnet/IP communication lines to the independent ports on the front interface. Use separate, shielded Cat-5e or fiber routing paths to ensure a single physical cable break cannot isolate the safety node.
Power Conductor Separation: Terminate the primary and standby 24 V DC utility feeds using separate power terminal cables. Route these lines through different wire tracks to prevent a localized short-circuit or cabinet fire from taking down both power inputs simultaneously.
Enclosure Airflow Clearance: Keep the ventilation paths directly above and below the rack chassis completely clear. Unobstructed airflow is required to keep ambient temperatures within the -20 to +60 deg C operating window, preventing the internal components from overheating in high-density configurations.

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