Connect your main incoming AC power supply to these terminals. (For single-phase 220V units, use terminals R and T).
Indoor installation at an altitude below 1km, well-ventilated, and away from direct sunlight. sigi-elect.si Operating Commands & Programming
Before configuring a new setup, clear previous configurations:
The CVF-S1 features a robust set of I/O terminals for diverse control methods. S1: Defaulted to Forward (FWD). S2: Defaulted to Reverse (REV). S3/S4: Multi-stage speed selection. S5: External Reset (RST). COM: Common port for digital signals. Analog Control: AVI (0–10V): Voltage signal input for frequency control. ACI (4–20mA): Current signal input. +10V: Power source for a potentiometer. Outputs: RA, RB, RC: Relay output for status signals (AC 250V/3A). A0: Programmable analog output. 2. Basic Programming Steps Convo Inverter Cvf-s1 Manual Pdf
The is a compact, high-performance variable frequency drive (VFD) designed for small-power applications, typically ranging from 0.4 kW to 2.2 kW . This series is often used in precision machinery like CNC spindles, fans, and pumps where space and efficiency are critical.
The REV function is typically assigned to terminal 4 by default. :
To program the inverter, navigate via the built-in control panel keypad. Modify the core parameter groups listed below to match your industrial motor application. Connect your main incoming AC power supply to
: Uses external switches connected to S1–S5. Direction Control :
This is a full-featured manual that serves as a comprehensive technical document for users. It's structured to guide you from foundational safety to advanced operation.
When the CVF-S1 encounters an operational anomaly, it stops outputting voltage and displays a distinct fault code on the LED display. Fault Code Fault Description Likely Cause Overvoltage during deceleration Deceleration time is too short for the load inertia. Increase b-10 or install a braking resistor. E.OC Overcurrent during acceleration Acceleration time is too fast or motor is jammed. Increase b-09 and inspect the mechanical load. E.LU Undervoltage Low mains input voltage or faulty contactor. Check input power line stability and voltage levels. E.OH Inverter Overheating Cooling fan blocked or ambient temperature too high. Clean dust from the heatsink; replace the cooling fan. E.OL Motor Overload Drive or motor running beyond rated current limit. Reduce load mechanical resistance or upgrade VFD capacity. Maintenance and Care sigi-elect
Output frequency ranges from 0Hz to 500Hz , with a resolution as fine as 0.01Hz for digital settings. Essential Manual Guidance
[ Power Supply: Single-Phase 220V or Three-Phase 380V ] │ ▼ ┌──────────────────┐ │ R S T │ <-- Input Terminals │ │ │ CONVO CVF-S1 │ │ │ │ U V W │ <-- Output Terminals └──────────────────┘ │ ▼ [ Three-Phase Motor ] Main Circuit Terminals
Here’s what you need to know:
Causes : High load inertia regenerating energy back into the drive during quick deceleration, or unstable input utility power.
: AC power input terminals (Single-phase units use only two terminals, typically L and N or R and T).