The control terminal logic (PNP vs NPN) is explained in the manual. Connecting a PLC output incorrectly can damage the drive’s 24V internal supply.

The INVT CHE100-0R7G-S2 is a compact, high-performance variable frequency drive (VFD) designed for controlling single-phase AC motors. As part of INVT’s renowned CHE100 series, this specific model—denoted by 0R7G (0.75kW) and S2 (single-phase 220V input)—is widely used in small conveyors, fans, pumps, and industrial machinery.

However, like any sophisticated electronic device, its full potential is only unlocked through proper configuration. This is where the INVT CHE100-0R7G-S2 manual becomes indispensable. Whether you are an electrician, maintenance engineer, or a DIY automation enthusiast, this article serves as a comprehensive companion to the official manual, covering installation, parameter settings, fault codes, and where to download the latest PDF.

The manual provides a parameter list. For the 0R7G-S2, focus on:

The CHE100-0R7G-S2 has an onboard RS485 port (terminal A, B). The manual provides the Modbus address mapping:

Baud rate is set via P9-00 (default 9600, n, 8, 1).

Q1: Can I use the CHE100-0R7G-S2 on a 110V supply?
Per manual: No. The S2 model requires 220V ±15% single-phase. For 110V, you need the “S1” model.

Q2: What is the maximum output frequency?
Per manual: P0-08 can be set up to 400 Hz (though motor limitations apply).

Q3: Why does my motor run in the wrong direction?
Per manual: Swap any two of the three output wires (U/V/W). Do not change parameters for direction unless using digital input for forward/reverse.

Q4: How do I reset to factory defaults?
Per manual: Set P0-16 = 1 (reset to default). Note: This clears all custom parameters.

Q5: Does the manual include a wiring diagram for a braking resistor?
Yes. Appendix B shows connection of an external braking resistor across terminals (+) and BR. For the 0R7G-S2, the manual specifies a minimum resistance of 100 ohms and a power rating of at least 200W.

Answer (from manual, Chapter 1.4): No. The output is always three-phase. You can only drive a three-phase motor. If you need a single-phase output, you must buy a single-phase VFD (e.g., INVT CHE100-0R7G-S2B – note the 'B' suffix).

Invt Che100-0r7g-s2 Manual