4-2 Function Mode Examples of connections and timing of commercial switching operation MC2 NFB ELBC MC1 R S T U V W MC3 THRY Motor Ro To FS FV FC MA MB MC 4 FWY FW RV RVY CS Functions CSY SC Timing example of switching from Timing example of switching from commercial power to Inverter Inverter to commercial power MC1 ON MC1 ON MC2 ON MC2 Interlock time of MC2 and MC3 (0.5 to 1 s) MC3 ON MC3 ON FW ON FW CS ON CS 0.5 to 1 s Retry wait time b003 ON OFF Operation Inverter output frequency Operation Operates after frequency matching. 4-83