Digital Input Module | Yokogawa SDV144-S63/PRP ProSafe-RS
Manufacturer: Yokogawa
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Part Number: SDV144-S63/PRP
Condition：New with Original Package
Product Type: Digital Input Modules
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Country of Origin: Japan
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Yokogawa SDV144-S63/PRP Digital Input Module
The Yokogawa SDV144-S63/PRP, also cataloged as the SDV144 Digital Input Module, operates as a dedicated hardware component for acquiring 16-channel discrete field signals within ProSafe-RS Safety Instrumented Systems. It processes no-voltage contact inputs from emergency shutdown pushbuttons and field limit switches, delivering galvanic isolation and real-time pulse testing to prevent false state triggers. The integrated signal cable interface adapter and keying pins ensure secure electrical interconnection and hardware keying during system maintenance.
Suffix Breakdown & Model Matrix
| Suffix / Option Code | Designation | Technical Description |
|---|---|---|
| SDV144 | Base Model | Digital Input Module (16-channel, 24 VDC, module isolation) |
| -S | Type | Standard operational specification |
| 6 | Interface | With signal cable interface adapter and no explosion protection |
| 3 | Coating / Temperature | ISA Standard G3 conformal coating with -20 to 70 deg C operating range |
| /PRP | Hardware Option | Prevention pin of false insertion for physical keying |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | SDV144-S63/PRP |
| Brand | Yokogawa |
| Origin | Indonesia |
| Weight | 0.35 kg net (1.5 kg shipping) |
| Dimensions | 3.3 cm x 12.7 cm x 12.7 cm |
| Operating Temp | -20 to 70 deg C |
| Power Consumption | 290 mA at 5 VDC (internal), 140 mA at 24 VDC (external) |
| Channel Count | 16 discrete digital inputs |
| Input Signal Type | No-voltage dry contact |
| Input ON State | Contact resistance <= 1 kohm |
| Input OFF State | Contact resistance >= 100 kohm |
| Nominal Input Current | 6 mA (+/-20%) |
| Response Time | <= 40 ms |
| Isolation Voltage | 2000 VAC for 1 minute (input-to-system) |
| Safety Certification | IEC 61508 SIL2 compliant, TÜV-certified |
Channel-to-Channel Isolation & DCS Signal Integrity
Designed for deployment in high-availability safety instrumented systems, the module utilizes optical isolation barriers rated for 2000 VAC to insulate core internal logic from field-side voltage spikes and noise. The hardware executes continuous diagnostic pulse testing across all 16 input channels, detecting field wiring breaks and short circuits without triggering spurious trips. With its ISA Standard G3 conformal coating, the circuit board withstands corrosive atmospheres containing sulfurous and chlorine-based gases. The /PRP physical prevention keying pins prevent mis-insertion into incorrect slot positions during live replacement routines, maintaining strict channel mapping across ProSafe-RS I/O nests.
Frequently Asked Questions
Q: Can this module be installed with standard terminal blocks instead of the signal cable interface?
A: No. Selecting the -S6 suffix designates a module built specifically with a signal cable interface adapter. It cannot accept pressure clamp terminal blocks or MIL cable connectors directly on the front panel.
Q: How does the /PRP option interact with field wiring cables?
A: The /PRP option adds a keying mechanism to prevent inserting the wrong module type into a wired slot. To complete the mechanical keying arrangement, the mating signal cable must feature the /SDV144 option code.
Q: What are the primary power supply demands for the module backplane and field loops?
A: The module draws up to 290 mA from the internal 5 VDC backplane bus for internal logic, while requiring an external 24 VDC supply drawing approximately 140 mA to power the dry-contact interrogation loops.
Field Installation Guidelines
Mount the module into the designated IOM nest slot within the control panel. Verify that the /PRP prevention pins align with the corresponding keyed slots on the mating connector before applying insertion force. Ensure that the field power source supplying the 24 VDC loop circuit is switched off during physical wiring tasks.
Route signal cables through grounded metallic conduits or dedicated cable trays, maintaining a physical separation of at least 300 mm from high-voltage power cables to minimize electromagnetic coupling. Connect cable shields to the cabinet ground bar using high-frequency grounding clamps at a single termination point. Verify that field contacts comply with the 1 kohm ON and 100 kohm OFF impedance thresholds prior to commissioning the safety loop.