S9400UK Yokogawa CENTUM VP Datasheet & Technical Manual

Yokogawa S9400UK Distributed Control System Battery Pack

Yokogawa S9400UK Distributed Control System Battery Pack

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Yokogawa S9400UK CENTUM VP/CS 3000 Battery Pack and Signal Module Configured for Specific Technical Task in DCS System Processor, the...

SKU: S9400UK

Manufacturer: Yokogawa
Product No.: S9400UK
Product Type: Battery Backup Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 600g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa S9400UK CENTUM VP/CS 3000 Battery Pack and Signal Module

Configured for Specific Technical Task in DCS System Processor, the Yokogawa S9400UK (S9400UK Battery Pack) provides direct physical/electrical execution. This dedicated hardware component supplies continuous power backup for distributed control system processor nodes while managing specific signal processing channels across CENTUM VP, CS 3000, and ProSafe-RS systems. The unit integrates a 6 V, 3,000 mAh Ni-MH assembly (utilizing HHR-30HF5G1 elements) alongside specialized optical isolation circuitry to ensure uninterrupted controller data retention and stable process field variable transmission.

Hardware Specifications

Parameter	Specification
Model	S9400UK
Brand	Yokogawa
Origin	Japan
Weight	0.6 kg
Dimensions	10.2 cm * 7.9 cm * 5.4 cm
Operating Temp	-20 deg C to +70 deg C
Power Consumption	24 V DC via backplane, ~0.5-0.7 A
Battery Chemistry	Nickel-Metal Hydride (Ni-MH) / Nickel Cadmium internal design variants
Voltage Output	6 V DC
Nominal Capacity	3,000 mAh
Battery Cell Type	HHR-30HF5G1
System Target	DCS System Processor Backup
Signal Channels	16 configurable input channels / 16 configurable output channels
Signal Range	4-20 mA DC, +/-10 V DC
Accuracy	+/-0.1% FS
A/D Conversion	12-bit resolution
Bus Compatibility	ESB/FIO bus infrastructure

4-20 mA HART Loop Protocol and Channel Isolation

As a fundamental component within the Yokogawa DCS architecture, this module relies on steady channel-to-channel optical isolation to prevent ground loop currents from degrading data integrity. The hardware architecture maintains strict galvanic isolation between the internal microprocessor bus and the field-side loop termination points. Field wiring interfaces support standard 4-20 mA HART loop protocol parameters, protecting downstream system processors from common-mode voltage spikes up to designated isolation limits. The internal battery assembly provides immediate energy sourcing to sustain the processor memory registers, preserving localized loop configuration parameters and runtime calibration coefficients if the primary 24 V DC system power experiences a complete drop.

Frequently Asked Questions

Q: What is the procedure for hot-swapping this module during active system execution?

A: The processor battery assembly can be replaced while the system bus is active, provided that the primary 24 V DC backplane power supply remains energized and stable. If primary backplane power is lost during the swap, memory retention will fail.

Q: How does the internal temperature affect the service life of the cell assembly?

A: Operating the unit continuously near the upper thermal limit of +70 deg C accelerates cell degradation. For optimal lifetime metrics, maintain ambient enclosure environments between 20 deg C and 25 deg C.

Field Installation Guidelines

Ensure all system power distribution lines are locked out before hard-wiring the field termination blocks. The hardware must be secured horizontally onto standard industrial rack infrastructures inside a dust-protected NEMA or IP-rated enclosure. Field signal loop cables require dedicated shielding; terminate the outer braided shields at the designated cabinet grounding bar using standard single-point grounding configurations to minimize electro-magnetic cross-talk. Maintain a minimum physical clearance of 50 mm around the module chassis to allow natural thermal convection and prevent internal heat accumulation. Verify that all terminal block screws are torqued down properly to ensure continuous contact under industrial vibration conditions.

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