Toshiba EX404MCRD5 EX40-4MCRD5 Programmable Controller

Description

Key Technical Specifications

Product Introduction & Supply Chain Strategy

This product is a Brand New Surplus unit. It is not used, not pulled from a decommissioned plant, and not refurbished. All modules undergo rigorous quality verification to ensure OEM-level reliability.

The Toshiba EX404MCRD5 (EX40-4MCRD5) is a compact, self-contained “brick” programmable logic controller designed for dedicated machine automation, material handling conveyors, and localized processing systems. Integrating power supply circuitry, logic processing, and high-density discrete I/O points into a single chassis, it delivers reliable real-time logic execution without requiring modular rack backplanes. Its rugged physical design makes it well-suited for control cabinets operating in harsh manufacturing environments.

Because the Toshiba EX40 Series is officially discontinued by the manufacturer, obtaining verified factory-sealed units is critical for plant continuity. Replacing a failed controller with a cheap refurbished unit carries severe risks, including dried power supply filter capacitors, degraded output relays, and corrupt EEPROM retention circuits that fail under thermal stress. Securing genuine New Surplus EX404MCRD5 inventory serves as a vital insurance policy, eliminating the massive engineering overhead, panel rewiring, and downtime associated with migrating legacy machinery to modern controller platforms.

Installation & Configuration Guide

Stage 1: Pre-Installation (Prep & Safety)

1. De-energize the enclosure and carry out full Lock-Out/Tag-Out (LOTO) procedures on incoming 24V DC / AC power feeds.
2. Put on an ESD-grounded wrist strap before handling the replacement PLC terminal strip or memory expansion slots.
3. Take high-resolution photos of all field wiring connections, DIP switch configurations, and terminal block labeling.
4. Verify that the system program logic is backed up to external media or an offline EEPROM cassette.

Stage 2: Removal & Extraction

1. Disconnect all wiring terminal blocks from the top and bottom of the EX404MCRD5 unit.
2. Tag every bundle carefully to match wire markers with the original hardware schematic.
3. Release the DIN-rail locking tab at the base of the controller chassis (or remove panel mounting screws) and carefully pull the brick controller forward.

Stage 3: Installation & Hardware Clone

1. Mount the new EX404MCRD5 securely onto the 35 mm DIN-rail or panel mounting plate.
2. Match all DIP switch settings or jumper configurations on the new unit to match the original hardware layout exactly.
3. Reattach field I/O wiring connectors, ensuring correct terminal alignment and tightening terminal screws to prevent loose contact faults.
4. Verify that the protective earth (PE) ground strap is bonded directly to the main cabinet ground bar.

Stage 4: Power-On & Commissioning

1. Measure incoming power at the field supply terminals to verify a clean 24V DC voltage without excessive ripple.
2. Energize the logic power feed. Confirm that the power LED illuminates solid green and no system fault indicators (ERR/FLT) are triggered.
3. Transfer the ladder program to the controller via the serial interface or install the pre-programmed EEPROM cassette.
4. Switch the PLC into RUN mode and perform a dry-run test of field inputs and safety interlocks before resuming full production.

EX404MCRD5

EX404MCRD5

Firmware/Software Versions & Upgrade Notes

• Software Compatibility: The EX404MCRD5 requires compatible Toshiba PLC ladder programming software or the EX-series handheld programming unit for parameter configuration and ladder uploads.
• Memory Cassette Handling: When swapping hardware, transferring the physical EEPROM cartridge from the old unit to the new unit retains system program logic and memory registers without requiring a PC connection.
• Revision Risks: Ensure the hardware build revision of the replacement controller matches or supersedes the original unit. Upgrading or downgrading controller firmware families on legacy brick PLCs can alter scan timing and execution speed, potentially causing timing discrepancies in high-speed pulse inputs or interrupt-driven routines.

Frequently Asked Questions (FAQ)

Q: How do you verify that this Toshiba is New Surplus and not refurbished?

A: Every unit in our inventory is sourced from original factory overstock, canceled system integration projects, or verified surplus channels. We maintain a strict zero-tolerance policy against second-hand, repaired, or pulled equipment. Each controller undergoes thorough incoming inspection to verify intact terminal blocks, zero mounting rack marks, pristine casing, and untouched OEM packaging.

Q: Why should our facility buy New Surplus rather than a lower-cost refurbished unit?

A: Legacy brick PLCs like the EX40 series rely on internal power supply capacitors, relays, and optocouplers that degrade over time. Refurbished units often contain hidden thermal fatigue and aged capacitors that can fail under continuous industrial load. Investing in New Surplus provides factory-level dielectric strength, zero operating hours, and full long-term reliability—saving thousands of dollars in emergency line stoppages.

Q: Is the Toshiba EX40 series fully obsolete?

A: Yes, the / Plus series has been officially discontinued by Toshiba. Because official factory support has ended, sourcing genuine New Surplus units is the most cost-effective strategy to maintain operational lines without spending weeks redesigning control logic and replacing entire control panels.

Q: Can I load the logic program into the new without a laptop?

A: Yes. If your original system utilizes a plug-in EEPROM memory cassette, you can move the cartridge directly from the old unit into the expansion slot of the replacement controller. The logic will automatically load into memory upon power-up.

Q: What warranty coverage is provided with this component?

A: We stand behind this Toshiba with a comprehensive 1-year warranty from the dispatch date. This delivers reliable protection against functional defects and provides complete peace of mind during installation and operation.