The VLT® Real-time clock option MCB 117 option provides advanced data-
logging functionality to the following drives
VLT® HVAC Drive FC 102
VLT® Refrigeration Drive FC 103
VLT® Aqua Drive FC 202
VLT® Automation Drive FC 301/FC 302
Note: This option is compatible only with MK-II control cards & upto 90
KW supporting A,B & C Frames.