Toshiba VFAS1 Series Drives: VFAS1P0001

Technical Dossier

Product Details And Specifications

Toshiba VFAS1 Series: Comprehensive Module Range and Technical Overview

The Toshiba VFAS1 series is a line of compact, single-phase and three-phase AC variable frequency drives (VFDs) engineered for precision motor speed control in demanding industrial environments. Deployed across chemical processing plants, water treatment facilities, oil refineries, and light manufacturing lines, the VFAS1 platform occupies a well-established position in the global industrial automation market. Its compact DIN-rail-compatible form factor and wide input voltage tolerance (single-phase 100–120V and 200–240V ranges) made it a preferred choice for OEM panel builders and system integrators throughout its production lifecycle. The series supports V/f control and is optimized for fan, pump, and conveyor applications where cost-effective variable speed operation is required without the overhead of full vector control platforms.

The Evolution of VFAS1 Architecture

The VFAS1 series was introduced as a successor to Toshiba's earlier VF-S7 and VF-S9 compact drive families, consolidating single-phase input capability into a standardized enclosure platform. Early VFAS1 units featured analog frequency reference inputs (0–10V, 4–20mA) and basic RS-485 Modbus RTU communication as an optional add-on. Mid-generation revisions introduced improved EMC filtering, expanded parameter sets for multi-step speed control (up to 8 preset speeds), and enhanced thermal management via optimized heatsink geometry. The series is now in a mature-to-end-of-life phase; Toshiba has transitioned its compact drive portfolio toward the VFAS3 and VFNC3 platforms, which offer expanded communication options (EtherNet/IP, PROFIBUS-DP) and higher overload ratings. Compatibility between VFAS1 and its successors is not direct — mounting footprints, parameter structures, and control terminal pinouts differ, requiring engineering review for any retrofit. For installations where VFAS1 units remain in service, like-for-like replacement remains the lowest-risk maintenance strategy.

VFAS1 Full Catalog & Functionalities (SKU List)

The following SKUs represent the documented VFAS1 product range, organized by power rating and input phase configuration. All units are V/f control topology unless otherwise noted.

Single-Phase 100–120V Input (0.1–0.75 kW)

• VFAS1P0001: 0.1 kW (1/8 HP), single-phase 100–120V input, three-phase 200V output, compact chassis, analog reference input.
• VFAS1P0002: 0.2 kW (1/4 HP), single-phase 100–120V input, three-phase 200V output, integrated EMC filter.
• VFAS1P0004: 0.4 kW (1/2 HP), single-phase 100–120V input, three-phase 200V output, 8-step preset speed function.
• VFAS1P0007: 0.75 kW (1 HP), single-phase 100–120V input, three-phase 200V output, enhanced thermal protection.

Single-Phase 200–240V Input (0.1–2.2 kW)

• VFAS1P0001B: 0.1 kW, single-phase 200–240V input, three-phase 200V output, DIN-rail mount.
• VFAS1P0002B: 0.2 kW, single-phase 200–240V input, three-phase 200V output, analog and digital reference inputs.
• VFAS1P0004B: 0.4 kW, single-phase 200–240V input, three-phase 200V output, RS-485 Modbus RTU optional.
• VFAS1P0007B: 0.75 kW, single-phase 200–240V input, three-phase 200V output, multi-step speed control.
• VFAS1P0015B: 1.5 kW, single-phase 200–240V input, three-phase 200V output, PID feedback control built-in.
• VFAS1P0022B: 2.2 kW, single-phase 200–240V input, three-phase 200V output, highest power rating in single-phase input range.

Three-Phase 200–240V Input (0.1–3.7 kW)

• VFAS1-2001P: 0.1 kW, three-phase 200V input/output, standard V/f control, compact enclosure.
• VFAS1-2002P: 0.2 kW, three-phase 200V input/output, analog frequency reference, relay output.
• VFAS1-2004P: 0.4 kW, three-phase 200V input/output, 8-step preset speed, braking resistor terminal.
• VFAS1-2007P: 0.75 kW, three-phase 200V input/output, enhanced overload protection (150% for 60s).
• VFAS1-2015P: 1.5 kW, three-phase 200V input/output, PID control, multi-function digital inputs.
• VFAS1-2022P: 2.2 kW, three-phase 200V input/output, RS-485 Modbus RTU optional communication card.
• VFAS1-2037P: 3.7 kW, three-phase 200V input/output, highest rating in 200V three-phase range, fan-cooled heatsink.

Sourcing Hard-to-Find & Obsolete VFAS1 Parts

The VFAS1 series has entered end-of-life status in Toshiba's active product portfolio. Standard distribution channels no longer carry new stock for the majority of VFAS1 variants, and lead times through authorized distributors — where stock exists — are unpredictable. DriveKNMS maintains a dedicated inventory of VFAS1 units sourced through verified industrial surplus channels, including decommissioned OEM panels and controlled-environment warehouse stock. All units are cataloged by part number, date code, and condition grade prior to listing. For facilities operating VFAS1 drives in continuous-process environments (chemical dosing, HVAC, conveyor systems), DriveKNMS provides lifecycle extension support: sourcing exact-match replacements, providing tested spare units for critical spares programs, and advising on retrofit pathways to current-generation Toshiba platforms where direct replacement is no longer feasible. Inquiries for bulk quantities, specific firmware revisions, or accessory items (communication cards, braking resistors, remote keypads) are handled on a case-by-case basis.

Quality Control for the VFAS1 Range

Each VFAS1 unit processed by DriveKNMS undergoes a structured inspection and functional test protocol before dispatch. Visual inspection covers enclosure integrity, terminal block condition, capacitor bulge assessment, and PCB contamination screening. Power-on testing verifies DC bus voltage build-up, inrush current limiting function, and fault code readout via the integrated LED display. Dynamic load testing applies a resistive or motor load to confirm output frequency accuracy across the 0–400 Hz programmable range, V/f curve linearity, and analog reference tracking (0–10V and 4–20mA inputs). For units with optional RS-485 communication cards, Modbus RTU register read/write verification is performed using a calibrated test master. Units that do not meet output voltage balance (<2% phase imbalance), frequency accuracy (<0.1 Hz deviation), and protection function response (overcurrent, overvoltage, undervoltage trip) are quarantined and not dispatched. Test records are retained and available upon request for critical spare applications.