Default redstone mode for relay should be LOW.

src/main/java/refinedstorage/tile/TileMachine.java

@@ -13,7 +13,7 @@ public abstract class TileMachine extends TileBase implements INetworkTile, IRed
 	protected boolean connected = false;
 	protected boolean redstoneControlled = true;
 
-	private RedstoneMode redstoneMode = RedstoneMode.IGNORE;
+	protected RedstoneMode redstoneMode = RedstoneMode.IGNORE;
 
 	private BlockPos controllerPosition;
 

src/main/java/refinedstorage/tile/TileRelay.java

@@ -1,7 +1,14 @@
 package refinedstorage.tile;
 
+import refinedstorage.tile.settings.RedstoneMode;
+
 public class TileRelay extends TileMachine
 {
+	public TileRelay()
+	{
+		this.redstoneMode = RedstoneMode.LOW;
+	}
+
 	@Override
 	public int getEnergyUsage()
 	{