Changed allowed states

src/tempus/Tempus.py

@@ -206,7 +206,7 @@ class Tempus(Device):
         displayedName="Initialize",
         description="Run the initialization sequence. This can take about "
                     "30 s",
-        allowedStates={State.INIT})
+        allowedStates={State.INIT, State.ON})
     async def initialize(self):
         self.state = State.CHANGING
         self.status = "Initializing TEMPUS"