Sanyo Denki QS1 Series Modules

Technical Dossier

Product Details And Specifications

Sanyo Denki QS1 Series: Comprehensive Module Range and Technical Overview

The Sanyo Denki QS1 series is a compact AC servo drive platform engineered for precision motion control in demanding industrial environments. Deployed across chemical processing plants, semiconductor fabrication facilities, food and beverage production lines, and automated assembly systems, the QS1 series occupies a well-established position in the global servo drive market. Its architecture supports single-axis positioning with integrated pulse-train and analog command interfaces, making it compatible with a broad range of host controllers including PLCs from Mitsubishi, Omron, and Siemens. Installed base units remain operational in facilities across Japan, Southeast Asia, and Europe, where replacement parts and maintenance support are critical operational requirements.

The Evolution of QS1 Architecture

The QS1 series was introduced as part of Sanyo Denki's transition from analog-controlled servo amplifiers to digitally-tuned drive platforms. Early QS1 units relied on external parameter-setting devices and DIP-switch configuration, with limited onboard diagnostics. Subsequent firmware revisions introduced auto-tuning algorithms, expanded fault code libraries, and improved EMC compliance to meet IEC 61800-3 Category C2 requirements. The series supports MECHATROLINK-II communication in select variants, enabling integration into coordinated multi-axis systems. As the QS1 series has entered its mature lifecycle phase, Sanyo Denki has transitioned new design-ins toward the SANMOTION R and SANMOTION F series. However, the QS1 remains in active service across legacy installations, and backward-compatible replacement units are a primary sourcing requirement for maintenance engineers. Compatibility between QS1 sub-variants requires careful cross-referencing of motor encoder type (incremental vs. absolute), supply voltage (single-phase 100V / 200V or three-phase 200V), and continuous output current rating.

QS1 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified models within the Sanyo Denki QS1 series, classified by function and electrical specification:

Servo Drive Controllers — Single-Phase 100V Input

• QS1E01AA0H4A3P1T: Single-axis servo amplifier, 100VAC input, 0.1kW continuous output, pulse-train command interface, incremental encoder feedback
• QS1E02AA0H4A3P1T: Single-axis servo amplifier, 100VAC input, 0.2kW continuous output, pulse-train command interface, incremental encoder feedback
• QS1E04AA0H4A3P1T: Single-axis servo amplifier, 100VAC input, 0.4kW continuous output, analog ±10V command, incremental encoder feedback

Servo Drive Controllers — Single-Phase 200V Input

• QS1E01AB0H4A3P1T: Single-axis servo amplifier, 200VAC single-phase input, 0.1kW, pulse-train interface, standard I/O terminal block
• QS1E02AB0H4A3P1T: Single-axis servo amplifier, 200VAC single-phase input, 0.2kW, pulse-train interface, standard I/O terminal block
• QS1E04AB0H4A3P1T: Single-axis servo amplifier, 200VAC single-phase input, 0.4kW, analog command, standard I/O terminal block
• QS1E08AB0H4A3P1T: Single-axis servo amplifier, 200VAC single-phase input, 0.75kW, pulse-train interface, regenerative resistor terminal

Servo Drive Controllers — Three-Phase 200V Input

• QS1E10AC0H4A3P1T: Three-phase 200VAC input, 1.0kW continuous output, pulse-train command, incremental encoder, built-in regenerative circuit
• QS1E15AC0H4A3P1T: Three-phase 200VAC input, 1.5kW continuous output, analog ±10V command, incremental encoder, dynamic braking resistor terminal
• QS1E20AC0H4A3P1T: Three-phase 200VAC input, 2.0kW continuous output, pulse-train command, incremental encoder, standard DIN-rail mount
• QS1E30AC0H4A3P1T: Three-phase 200VAC input, 3.0kW continuous output, analog command, incremental encoder, expanded I/O connector

Absolute Encoder Variants

• QS1E01AB0H4A3P2T: 100VAC input, 0.1kW, absolute encoder interface (battery backup required), pulse-train command
• QS1E04AB0H4A3P2T: 200VAC single-phase input, 0.4kW, absolute encoder interface, analog command
• QS1E08AB0H4A3P2T: 200VAC single-phase input, 0.75kW, absolute encoder interface, pulse-train command, battery connector CN4

Communication & Accessory Modules

• QS1-OP01: Handheld parameter unit for QS1 series; used for offline parameter backup, fault history retrieval, and gain adjustment without PC connection
• QS1-CN01: USB-to-serial communication cable for PC-based parameter configuration via Sanyo Denki PANATERM-equivalent software

Sourcing Hard-to-Find & Obsolete QS1 Series Parts

The QS1 series is classified as a mature product line. Sanyo Denki has ceased volume production of several sub-variants, and lead times through authorized distribution channels can extend to 16–26 weeks for non-stocked models. DriveKNMS maintains a dedicated inventory of QS1 series units sourced from decommissioned equipment, factory overstock, and verified secondary market channels. All units are inspected prior to listing. For facilities operating legacy QS1 installations where a full drive replacement would require re-engineering of the motion control architecture, DriveKNMS provides like-for-like replacement units that eliminate the need for parameter migration or wiring modification. Customers requiring cross-reference support between discontinued QS1 part numbers and current Sanyo Denki SANMOTION equivalents can submit their existing part number to our technical team for evaluation.

Quality Control for the QS1 Range

Each QS1 unit processed by DriveKNMS undergoes a structured inspection protocol prior to dispatch. Visual inspection covers the power stage heatsink, IGBT module condition, capacitor ESR, and terminal block integrity. Functional testing is performed under load using a matched Sanyo Denki servo motor to verify torque output, encoder signal fidelity, and fault response behavior across the full operating speed range. Communication interface continuity is verified for both pulse-train (sign + pulse, CW/CCW) and analog command modes. Units exhibiting parameter corruption, abnormal current draw, or encoder feedback errors are quarantined and not listed for sale. Test records are retained per unit and available upon request for critical infrastructure procurement.