About QMA
QMA is a company that manufactures high-performance vector control inverters and straight bulkhead receptacles. Their inverters are designed for industrial applications requiring 200V, 400V, or 3-phase power supplies, while their receptacles are specified for coaxial transmission lines.
Sources: QMA A1000 Series High Performance Vector Control Inverter User Manual · QMA R123.553.000 Straight Bulkhead Receptacle Technical Data Sheet. Checked 2026-10-13. Contact details change - confirm them on the manufacturer's site.
Key facts
- Manuals
- 6
- Languages
- EN · JA · ZH
- Last added
- 2026-10-13
Featured QMA manuals

QMA A1000 Series High Performance Vector Control Inverter User Manual
The document provides a comprehensive guide for the QMA A1000 Series High Performance Vector Control Inverter. It details product introduction, model numbering, application environments, and safety precautions necessary for safe operation.
Key sections include detailed wiring instructions for both main circuits (power input/output) and control circuits (terminals, analog inputs/outputs, digital I/O). The manual also explains the operation interface, autotuning procedures, function parameter tables, fault diagnosis methods, and technical specifications.
Covers: Product Introduction · Wiring Description · Operation & Display · Autotuning · Function Parameter Table · Fault Diagnosis & Troubleshooting

QMA R123.553.000 Straight Bulkhead Receptacle Technical Data Sheet
This document is a technical datasheet for the QMA Series R123.553.000 Straight Bulkhead Receptacle with rear mounting configuration. It provides comprehensive information regarding product components, materials used in construction, and various performance characteristics.
The datasheet details electrical properties such as impedance, frequency range, VSWR, insertion loss, and voltage ratings. Additionally, it lists mechanical specifications including assembly torque, mating life, weight, and material composition for the body, center contact, outer contact, insulator, gasket, and other parts.
Covers: Components · Materials · Electrical Characteristics · Environmental Characteristics · Mechanical Characteristics

QMA R123.071.000 Straight Plug Full Crimp Technical Data Sheet
This document is a technical data sheet for the QMA R123.071.000 Straight Plug Full Crimp connector designed for 2.6/50 S Series cables. It provides comprehensive information on components, materials, plating thicknesses, and packaging options.
The datasheet details electrical characteristics such as impedance (50 Ω), frequency range (0-6 GHz), VSWR, insertion loss, RF leakage, voltage rating, and dielectric withstanding voltage. Mechanical specifications include center contact retention forces, torque values for mating and panel nuts, mating life of 100 cycles, weight, and operating temperature range from -40 to +105 °C.
Covers: Components · Materials · Platings · Electrical Characteristics · Mechanical Characteristics · Environmental Requirements

QMA Q-7000 Series User Manual
This manual provides detailed instructions for the QMA Q-7000 series inverter drive. It includes safety notices, installation requirements, wiring diagrams, parameter settings, and fault analysis to help users operate the device safely and efficiently.
The document is organized into chapters covering product introduction, wiring, parameter configuration for EL and EC variants, IP specifications, fault analysis, environmental standards, and appendices with additional reference information. This manual is written in Japanese.
Covers: Introduction · Wiring Diagram · Parameter Settings · IP Specifications · Fault Analysis · Environmental Standards
Latest QMA manuals
QMA A1000 Series High Performance Vector Control Inverter User Manual
User Manual 129 pages · 2.2 MB · ENThis user manual covers the installation, wiring, operation, parameter settings, and troubleshooting for the QMA A1000 series high-performance vector…
QMA R123.553.000 Straight Bulkhead Receptacle Technical Data Sheet
Datasheet 2 pages · 31 KB · ENTechnical data sheet for the QMA Series R123.553.000 straight bulkhead receptacle, detailing electrical and mechanical specifications.
QMA R123.071.000 Straight Plug Full Crimp Technical Data Sheet
Datasheet 2 pages · 37 KB · ENTechnical data sheet for the QMA R123.071.000 straight plug full crimp connector, detailing electrical and mechanical specifications.
QMA Q6000-21/23/43 Manual
QMA Q-7000 Series User Manual
User Manual 149 pages · 19.2 MB · JAUser manual for the QMA Q-7000 series variable frequency drive, covering installation, wiring, parameters, safety and troubleshooting.
QMA Q9000 Series User Manual
User Manual 129 pages · 21.5 MB · ZHThe QMA Q9000 Series user manual provides installation, operation, parameter settings, and troubleshooting for the high‑performance vector inverter.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Datasheet
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in QMA manuals
Can I connect braking resistance directly to DC bus terminals?
No, do not connect braking resistance to DC bus terminals (+) & (-) directly as this may cause fire.
From: QMA A1000 Series High Performance Vector Control Inverter User Manual
What is the ambient temperature range for open installation?
The inverter supports an ambient environment of -10-45℃ for open installation in a switchboard.
From: QMA A1000 Series High Performance Vector Control Inverter User Manual
What is the maximum voltage rating for this receptacle?
The device has a maximum voltage rating of 500 Veff.
From: QMA R123.553.000 Straight Bulkhead Receptacle Technical Data Sheet
What operating temperature range is specified for the unit?
It operates within a temperature range from -40 to +105 °C.
From: QMA R123.553.000 Straight Bulkhead Receptacle Technical Data Sheet
What is the recommended cable for this connector?
The document recommends RG 188, RG 316, and KX 22A cables.
From: QMA R123.071.000 Straight Plug Full Crimp Technical Data Sheet
What tooling is required for assembly?
Assembly requires a crimping tool (R282.211.000), specific crimping dies, and a positioner.
From: QMA R123.071.000 Straight Plug Full Crimp Technical Data Sheet
