Convo Inverter Cvf-s1 Manual Work May 2026

Convo CVF-S1

The is a compact, low-power single-phase variable frequency drive (VFD) designed for general industrial applications. Now under the Bosch Rexroth umbrella after their acquisition of Convo Electric, the S1 series is typically utilized for controlling three-phase AC induction motors in environments like fans, pumps, and small machinery. Key Technical Specifications

• Monthly – Check cooling fan operation. Clean dust from heatsink.
• Every 6 months – Verify terminal tightness (torque: power 1.2 Nm, control 0.5 Nm).
• Annually – Measure output voltage balance (U-V, V-W, W-U) should be within 3%.
• Capacitor reform – If stored >2 years, apply 50% rated voltage for 1 hour before full use.

• Analog Input (AI1, AI2, GND): Accepts 0-10V or 0/4-20mA signals for speed reference.
• Digital Inputs (FWD, REV, X1-X4): Used for Run/Stop commands, multi-speed selection, or external fault signals.
• Relay Output (TA, TB, TC): A programmable relay output usually used for indicating "Fault" or "Run" status to an external circuit.

Most genuine CVF-S1 units have a QR code sticker on the side. Scanning this with your smartphone usually redirects to the direct download link for that specific hardware version. Convo Inverter Cvf-s1 Manual

• Clean the inverter regularly to prevent dust buildup.
• Check for worn or damaged components.
• Perform routine inspections to ensure proper operation.