18 RS8FR302 © Danfoss 2015-08 AK-LM 330Extension module AK-XM 204A / AK-XM 204BAK-XM 204A AK-XM 204BMax. 230 VAC-1: max. 4 A (ohmic)AC-15: max. 3 A (Inductive)FunctionThe module contains 8 relay outputs.Supply voltageThe supply voltage to the module comes from the previousmodule in the row.AK-XM 204B onlyOverride of relayEight change-over switches at the front make it possible tooverride the relay’s function.Either to position OFF or ON.In position Auto the controller carries out the control.Light-emitting diodesThere are two rows with LED’s. They indicate the following:Left row:• Voltage supply to the controller• Communication active with the bottom PC board (red = error)• Status of outputs DO1 to DO8Right row: (AK-XM 204B only):• Override of relaysON = overrideOFF = no overrideFusesBehind the upper part there is a fuse for each output.Keep the safety distance!Low and high voltagemust not be connected tothe same output groupAK-XM 204BOverride of relay