WEG CFW-09 Frequency Inverter Addendum to the CFW-09 Frequency Inverter Manual

About this manual

This document is an addendum to the CFW-09 Frequency Inverter Manual, detailing new features in software version V4.40, including mechanical brake logic and updated parameter incompatibilities. It specifies how to configure parameters for brake activation and lists new error codes (E24) for incompatible settings. The document is intended for qualified personnel to ensure safe installation and operation of the inverter.

What's inside

• Mechanical Brake Logic
• Parameter P203
• Brake Activation Logic
• New Incompatibilities (E24)
• Parameter Configuration

Specifications

Frequently asked questions

What is the purpose of parameter P203?

Parameter P203 selects the special function type: 0 = Not Used, 1 = PID Regulator, 2 = Mechanical Brake Logic.

How does the brake activate when DOx/RELAY = 30 or 31?

The brake activates based on speed comparison: N > Nx or N*t > Nx, with conditions including being in Run mode and without error.

What are the new incompatibilities for E24?

New E24 incompatibilities include combinations of parameters like P225 ≠ 0 with P275 = 30 or 31, or P265 = 10 with P275 = 30 or 31.