Fuji Electric MICREX-SX SPH Series Modules M-SPS1000RM-1F 0010-10061 0100-20003 Power Supply Unit

Technical Dossier

Product Details And Specifications

Fuji Electric MICREX-SX SPH Series Technical Notes

The Evolution of MICREX-SX SPH Architecture

The MICREX-SX platform was introduced by Fuji Electric as the successor to the MICREX-F series, transitioning from a proprietary bus structure to a high-speed internal SX bus capable of handling distributed I/O expansion across multiple racks. Early SPH configurations (SPH200, SPH300) used single-slot CPU modules with limited memory addressing, targeting mid-range machine control. The SPH500 and SPH1000 variants introduced multi-CPU redundancy, expanded I/O capacity exceeding 4,096 points, and support for MELSEC-compatible communication protocols alongside Fuji's native FL-net (OPCN-2) industrial Ethernet standard.

Compatibility across generations is a known engineering constraint: SPH200-series I/O modules are not directly interchangeable with SPH1000 backplanes due to differing bus voltage rails and connector pinouts. Firmware revisions above V3.x on SPH1000 CPUs introduced changes to the memory map that affect ladder program migration from earlier SPH300 projects. Engineers maintaining legacy installations must verify CPU firmware version, base unit revision, and power supply input rating before substituting modules. The M-SPS1000RM-1F specifically targets SPH1000-class base units and is not compatible with SPH200 or SPH300 frames.

MICREX-SX SPH Full Catalog & Functionalities (SKU List)

Power Supply Modules

• M-SPS1000RM-1F: Redundant 24VDC input power supply for SPH1000 base; hot-standby switchover, 10A output rail.
• M-SPS200-1: Standard 100–240VAC input power supply for SPH200 base unit; 5VDC/3A output.
• M-SPS300-1: 24VDC input power supply for SPH300 base; single-feed, non-redundant configuration.
• M-SPS1000-1: Standard (non-redundant) 100–240VAC power supply for SPH1000 base unit.

CPU / Controller Modules

• M-CPU200-1: SPH200 CPU module; 32K step program memory, FL-net port, RS-232C loader interface.
• M-CPU300-1: SPH300 CPU; 64K step memory, dual RS-232C, supports SX bus expansion.
• M-CPU1000-1: SPH1000 single CPU; 256K step, Ethernet (FL-net), USB loader port.
• M-CPU1000-2: SPH1000 dual-redundant CPU module; synchronous hot-standby, 256K step each.
• M-CPU1000-3: SPH1000 high-capacity CPU; 512K step, extended data register, V4.x firmware.

Digital Input (DI) Modules

• M-DI32A-1: 32-point 24VDC digital input; sink/source selectable, 5ms filter.
• M-DI16A-1: 16-point 24VDC digital input; isolated commons, 1ms high-speed filter option.
• M-DI32B-1: 32-point 100–120VAC digital input module for field device interfacing.

Digital Output (DO) Modules

• M-DO32A-1: 32-point 24VDC transistor output; 0.5A per point, short-circuit protection.
• M-DO16R-1: 16-point relay output; 2A/point, 250VAC/30VDC contact rating.

Analog Input (AI) Modules

• M-AI8A-1: 8-channel analog input; 4–20mA / 0–10V selectable, 12-bit resolution.
• M-AI4B-1: 4-channel high-precision analog input; 16-bit resolution, ±10V / 1–5V range.

Analog Output (AO) Modules

• M-AO4A-1: 4-channel analog output; 4–20mA / 0–10V, 12-bit, isolated per channel.

Communication / Network Adapter Modules

• M-NET1-1: FL-net (OPCN-2) Ethernet communication module; 100BASE-TX, cyclic/message transfer.
• M-PROFIBUS-1: PROFIBUS-DP slave adapter; up to 12Mbps, GSD file configurable.
• M-MELSEC-1: MELSEC-compatible link module for integration with Mitsubishi MELSECNET/H networks.

Sourcing Hard-to-Find & Obsolete MICREX-SX SPH Parts

The MICREX-SX SPH series entered its mature/end-of-active-production phase, with Fuji Electric having transitioned its primary development focus to the MICREX-NX platform. However, the installed base of SPH200, SPH300, and SPH1000 systems in long-lifecycle industries — refineries, chemical plants, water treatment infrastructure — remains substantial, with many facilities operating on 20–30 year maintenance cycles that preclude full system replacement.

DriveKNMS maintains a dedicated inventory of SPH-series modules sourced through certified industrial surplus channels, OEM overstock, and decommissioned plant equipment. All units are subject to pre-sale inspection before dispatch. For discontinued part numbers including legacy CPU revisions, early-generation power supplies, and obsolete communication adapters, DriveKNMS provides lifecycle extension support including cross-reference identification, firmware version matching, and compatibility verification against the customer's existing base unit revision. Customers are encouraged to submit complete BOM lists for bulk sourcing inquiries.

Quality Control for the MICREX-SX SPH Range

SPH-series modules present specific test challenges due to their SX bus backplane communication protocol and multi-slot interdependency. DriveKNMS applies the following verification procedures to all SPH modules prior to shipment:

• Power Supply Modules (M-SPS series): Input voltage sweep test across rated range; output rail voltage measurement under load; redundancy switchover simulation for RM-suffix units; inrush current measurement.
• CPU Modules: Cold-start boot verification; firmware version readout via loader port; program memory read/write cycle test; FL-net port link establishment test.
• I/O Modules: Point-by-point channel activation for DI/DO modules; analog channel calibration verification against reference signal for AI/AO modules; isolation resistance test between commons.
• Communication Modules: Protocol handshake test with reference master device; baud rate verification; LED status indicator functional check.

All tested units are labeled with inspection date, technician ID, and test result. Modules that fail any test parameter are quarantined and not offered for sale.