Controlling permanent magnet synchronous electrical machines requires knowing the rotor position in relation to the stator. The rotor position can be estimated by the inverter control logic, but it is difficult especially in low-speed situations. To improve the low-speed performance an additional sensor, a resolver, is used for measuring the position. The resolver set up procedure for Danfoss EC-C1200 inverter with a permanent magnet synchronous machine (PMSM) is described in detail in a separate document.
For physical wiring instructions for the resolver connection, see the user manual or the wiring instructions article.
Please request the resolver configuration guide from Editron Service: