Rockwell Automation 1203-USB Converter - Manual (Page 105)

Glossary G-5
PowerFlex 1203-USB Converter User Manual
Publication DRIVES-UM001D-EN-P
Z
Zero Data
When communications are disrupted (for example, a cable is disconnected),
the converter and connected drive can respond with zero data. Zero data
results in the drive receiving zero as values for command data. If the drive
was running and using the Reference from the converter, it will stay running
but at zero Reference.