TOSHIBA VFAS1P0001 Replacement/Upgrade for VF-AS1

Product Overview

TOSHIBA VFAS1P0001 Replacement/Upgrade Solution for VF-AS1: Smooth Migration from Legacy Drive Systems

The TOSHIBA VFAS1P0001 is a compact 0.1kW single-phase input variable frequency drive from the VF-AS1 series, engineered for precise motor speed control in industrial automation environments. As legacy drive systems age and original units reach end-of-life or become increasingly difficult to source, the VFAS1P0001 serves as a direct replacement and upgrade path for facilities running older TOSHIBA VF-S9, VF-nC3, or VF-MB1 series drives in light-duty conveyor, pump, fan, and HVAC control applications.

For maintenance engineers and procurement teams managing aging control cabinets, the VFAS1P0001 offers a compelling combination of backward-compatible wiring terminals, familiar parameter structure, and a compact DIN-rail-friendly footprint that minimizes panel rework during retrofit. The drive accepts single-phase 200–240V AC input and delivers three-phase output to the motor, making it suitable for direct drop-in replacement in most existing enclosures without requiring additional transformer stages or power conditioning equipment.

When migrating from a discontinued TOSHIBA VF-S7 or VF-S9 unit, engineers will find that the VFAS1P0001 retains the same RS-485 Modbus RTU communication interface, allowing existing SCADA, HMI, or PLC programs—whether running on a Mitsubishi MELSEC Q-series controller, an Omron CP1H, or a Siemens S7-1200—to communicate with the replacement drive using the same register map with minimal parameter remapping. This dramatically reduces commissioning time and eliminates the need for PLC program rewrites in most standard speed-reference and run/stop command applications.

Physical installation is equally straightforward. The VFAS1P0001 shares the same screw-terminal pitch and control wiring layout as earlier VF-AS1 variants, so existing multi-conductor shielded cable runs for analog speed reference (0–10V or 4–20mA), digital run/stop inputs, and fault relay outputs can typically be reconnected without re-pulling cables. For applications where the original drive was mounted on a standard 35mm DIN rail inside a Rittal or Schneider control cabinet, the VFAS1P0001 fits the same mounting slot, preserving cabinet layout integrity and reducing downtime during the swap.

In multi-drive systems where the VFAS1P0001 operates alongside other automation components—such as a TOSHIBA EX100 or EX300 series programmable controller, a Keyence CV-X series vision system trigger, or a Panasonic FP-X series PLC managing upstream conveyor logic—the drive’s built-in PID control loop and multi-step speed preset registers allow seamless integration without additional signal conditioning modules. For facilities also running TOSHIBA VFAS1-2004PM or VFAS1-2007PM units in higher-power zones of the same production line, the VFAS1P0001 shares the same parameter menu structure, simplifying cross-training for maintenance personnel and standardizing spare-parts inventory.

Communication protocol compatibility extends to optional plug-in communication cards. If the existing installation uses a PROFIBUS-DP or DeviceNet fieldbus backbone—common in automotive body shop or food processing lines—the VF-AS1 series supports optional communication option cards that slot into the drive’s expansion port, preserving fieldbus topology without gateway devices. Similarly, for applications requiring safe torque off (STO) or emergency stop integration with a safety relay module such as a Pilz PNOZ or Sick safety controller, the VFAS1P0001’s digital input terminals support external hardware enable circuits compliant with standard safety wiring practices.

For procurement teams evaluating total cost of ownership, sourcing the VFAS1P0001 as a stocked replacement unit rather than waiting for OEM lead times—which can extend to 16–24 weeks for legacy TOSHIBA drive models—represents a significant operational advantage. TOPNLMS maintains verified stock of the VFAS1P0001 with pre-shipment functional testing, ensuring each unit is confirmed operational before dispatch. Orders are processed within 1–2 business days from our Xiamen warehouse, with DHL Express, FedEx International Priority, and sea freight options available to minimize landed cost for bulk procurement.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful VFD migration rarely involves the drive alone. When replacing the VFAS1P0001 or upgrading a legacy VF-AS1 installation, the following components are commonly required to complete the retrofit and restore full system functionality:

For communication and programming, a TOSHIBA VF-AS1 RS-485 programming cable (USB-to-RS485 adapter compatible with TOSHIBA’s PC tool software) is essential for parameter backup from the old drive and parameter upload to the replacement unit. If the existing control network uses a TOSHIBA DEV001Z DeviceNet option card or a PRF001Z PROFIBUS-DP option card, these plug-in modules are compatible with the VFAS1P0001 expansion slot and should be transferred or replaced as part of the migration.

On the power supply side, facilities running the VFAS1P0001 alongside a TOSHIBA EX100 or EX300 series PLC should verify that the 24VDC control power supply—typically a Phoenix Contact QUINT or Omron S8VS series DIN-rail power supply—provides sufficient current headroom for the drive’s control circuit after adding any new I/O expansion modules. For installations where the original drive shared a control transformer with other panel loads, a dedicated single-phase isolation transformer rated at 200VA or above is recommended to prevent voltage sag during drive startup.

I/O integration often requires a terminal block adapter module—such as a Weidmüller or Phoenix Contact feed-through terminal strip—to cleanly land the existing multi-conductor cable onto the VFAS1P0001’s control terminals without splicing. In applications where the upstream PLC uses a Mitsubishi QD75 positioning module or an Omron CJ1W-NC series motion control unit for pulse-train speed reference, a signal isolator or pulse converter module may be required to match the drive’s analog input impedance.

For HMI integration, if the existing panel uses a TOSHIBA V9 series HMI or a Proface GP4000 series touch panel communicating with the drive over RS-485, the Modbus RTU register addresses for speed reference, output frequency, output current, and fault code readback are preserved in the VFAS1P0001, allowing the existing HMI screen project to function without modification after updating the station address parameter.

Retrofit Guidance FAQ

Q: Can I reuse the existing control wiring when replacing a VF-S9 with the VFAS1P0001?
A: In most cases, yes. The VFAS1P0001 uses the same terminal designations (FWD, REV, CM, FM, AM, 11, 12, 13) as earlier VF-AS1 and VF-S9 series drives. Verify terminal pitch and wire gauge compatibility before reconnecting. Always power down and lock out the panel before any wiring work.

Q: Will my existing PLC program need to be modified?
A: If your PLC communicates with the drive via RS-485 Modbus RTU using standard TOSHIBA VFD register addresses (e.g., frequency command at register 0x0001, run command at 0x0002), no program changes are required. Verify the drive station address (parameter F800) matches the address configured in your PLC communication block.

Q: Does the VFAS1P0001 fit in the same panel cutout or DIN rail slot as my old drive?
A: The VF-AS1 0.1kW model has a compact form factor designed for standard 35mm DIN rail mounting. Confirm the physical dimensions against your existing panel layout. In most standard Rittal or Schneider enclosures, no panel modification is required.

Q: What communication protocols does the VFAS1P0001 support natively?
A: The drive supports RS-485 Modbus RTU as standard. PROFIBUS-DP and DeviceNet are available via optional plug-in communication cards (sold separately). USB or RS-232 programming interfaces require a compatible adapter cable.

Q: How do I back up parameters from my old drive before replacement?
A: Use the TOSHIBA PC tool software (VF-AS1 compatible version) with an RS-485 programming cable to read and save all parameters from the existing drive. Upload the saved parameter file to the VFAS1P0001 after installation, then verify motor nameplate parameters (rated voltage, current, frequency) and adjust as needed for the specific motor.

Q: What is the minimum downtime I should plan for this replacement?
A: For a straightforward like-for-like swap with parameter backup/restore and no wiring changes, experienced engineers typically complete the replacement in 2–4 hours including functional testing. Allow additional time if fieldbus option cards need to be transferred or if motor auto-tuning is required.

Warranty Assurance

Every TOSHIBA VFAS1P0001 unit shipped by TOPNLMS is covered by a 12-month warranty from the date of delivery. Prior to dispatch, each unit undergoes a pre-shipment functional inspection including power-on verification, output voltage balance check, and communication port continuity test. Units that do not pass inspection are quarantined and not shipped.

In the event of a warranty claim, TOPNLMS provides a replacement unit or full refund within the warranty period. Our after-sales response target is 24 hours for initial fault diagnosis support via email or WhatsApp, with replacement dispatch within 3–5 business days upon confirmed fault verification. Warranty coverage applies to manufacturing defects and functional failures under normal operating conditions; it does not cover damage resulting from incorrect installation, overvoltage events, or unauthorized modification.

For bulk procurement or project-based orders requiring extended warranty terms, dedicated stock reservation, or staged delivery schedules, please contact our sales team directly. TOPNLMS maintains bonded warehouse stock in Xiamen with the capacity to support project quantities and emergency replacement programs for maintenance contracts.

Shipping options include DHL Express (3–5 business days globally), FedEx International Priority, and consolidated sea freight for pallet quantities. All orders include a commercial invoice, packing list, and certificate of origin for customs clearance. Export documentation for CN22/CN23, EUR.1, or Form E (ASEAN FTA) is available upon request.