MicroMaster 420 is a general-purpose variable frequency drive produced by Siemens. This document is the MicroMaster 420 user manual, which introduces the characteristics, installation, commissioning, use, system parameters, fault troubleshooting, technical specifications, optional parts, electromagnetic compatibility, parameter table, function block diagram, binary interconnection connection function, communication, advanced operation board, optional part installation diagram, appendix, etc. of MicroMaster 420.
This manual covers the MicroMaster 420 variable frequency drive, describing its installation, commissioning, and safe operation. It includes safety warnings, EMC guidance, and optional accessories.
The document is organized into sections on installation, debugging, system parameters, troubleshooting, technical specifications, optional options, EMC compliance, parameter tables, communication interfaces, and advanced operation panels. This manual is written in Chinese.
| Power supply voltage (single‑phase) | 200‑240 V ±10% (single‑phase) |
|---|---|
| Power range (single‑phase) | 0.12‑3.0 kW (0.16‑4.0 hp) |
| Input frequency | 47 Hz – 63 Hz |
| Output frequency | 0 Hz – 650 Hz |
| Efficiency | 96 % – 97 % |
| Protection class | IP20 |
| Operating temperature | -10 °C to +50 °C |
| Digital inputs | 3 programmable (PNP/NPN) |
| Relay output | 1 programmable, 30 V DC / 5 A |
| Optional EMC filter | EN55011 standard A or B |
It means that not following the requirements may cause death or serious personal injury.
An optional EMC filter to EN55011 standard A or B can be fitted.
The device has a protection class of IP20.
The drive operates from -10 °C to +50 °C.