ALSTOM ALSPA series frequency converter

10.4 Historical record analysis

After the malfunction occurs, connect to the transmission using PC software and export the historical record file. Due to the universal data format, it can be imported into Excel for trend chart analysis or sent to ALSTOM remote diagnostic center.

10.5 Interruption of fieldbus communication

Check the terminal resistance of the bus cable (if Profibus needs to be activated at both ends).

Check the status LED of the PEC communication card.

Use a bus monitor (such as Wireshark for Ethernet) to capture messages and confirm whether the master station sends data periodically.

Comparison and positioning with competing products

Characteristics: ALSPA Transmission, Mainstream European and American Brands, Mainstream Japanese Brands

Low voltage power upper limit 5MVA, usually 2-3MW, usually within 1MW

Medium voltage power upper limit>100MW (engineering) can reach up to 50MW, which is relatively small

Controller platform unified PEC (32-bit floating point), different series, different series

Programming language IEC 61131-3 (FBD) specific language or Codesys specific software

High current DC power supply above 60kA with minimal water cooling

Our global service has a wide range of proprietary networks, mainly in Asia

The differentiated advantages of ALSPA lie in ultra-high power (100MW level), high current rectification, and diagnostic and programming consistency brought by a unified PEC platform. This is particularly important for multi drive production lines such as papermaking and metallurgy.