Variable Frequency Drive (VFD) / Frequency Converter · Frequency Converters & Drives
It is normally installed in electrical rooms, machinery control cabinets or near large variable-speed motors where environmental conditions permit. Its primary duty is to control motor speed and torque by converting the electrical supply to the frequency and voltage required by the driven equipment. In service it interfaces with switchgear, motor cables, driven motors, control networks, cooling system, braking or harmonic equipment and automation/PMS signals. For exact limits, settings, test values and approved maintenance criteria, refer to the manufacturer documentation for the exact figure.
Do you have the manufacturer datasheet for this model? Send it with the enquiry form — we check it and name the source.
What our service work and the manufacturer documentation say about keeping this model running.
Review fault history, cooling condition, cabinet cleanliness, terminals, DC-link condition, insulation of motor/cables, control signals and network communication; exact parameter settings and test values must come from the approved drive documentation.
Carry cooling fans, fuses, control boards or key modules where practical, contactors, communication cards and approved capacitor/power-module spares according to criticality.
Free of charge — send us your request for Schneider Marine equipment. Our team checks it and replies by e-mail.
Other models of the same equipment type, Schneider Marine first.
Tell us what you need for this Schneider Marine Altivar 930 Marine 4kW 440V Marine — a part, a service call, a second opinion. Are you Schneider Marine? Claim this brand page.
Service engineer? Write the day report for this Altivar 930 Marine 4kW 440V Marine in OceanSphere Work — photos, hours and parts, as a PDF for the owner. Try it free for 14 days →
Yes. Specifications, documents and service notes for this model are readable without an account. An account adds saved searches and requests, nothing is taken away.
Yes. Tell us the manufacturer, the model and what you need — a person reads every request and replies by e-mail.
Send us the nameplate or the correct value. We check it against the manufacturer datasheet or class-society record and update the page.