The A/B in C Option Adapter can be placed in the Option C slot and allows for up to four A and B-options in different combinations. Limitations are due to the facts -that the drive cannot handle more than one fieldbus at the time, cannot handle several identical options, and that the physical layout of options can cause limitations.
VLT® Relay Card MCB 105 and VLT® PTC Thermistor Card MCB 112 are not supported by the adapter and must thus only be installed in the standard slot B of the Control Card.
