thosoneill said:
Is it ok to keep the isolator switch on the on position permanently
I'm pretty certain that most manufacturers will say in their instructions the mover should be isolated when its not needed.
I'd be very surprised if manufactures were to spend money to supply and fit an isolator switch if none were needed.
You may also need a physical isolation switch if you have a problem with the mover.
It is a generally accepted process to have the ability to fully isolate all electrical appliances, especially where the usual controls rely on solid state devices to control current. Solid state devices can sometimes fail to closed circuit, so you do need a proper isolation device.
I'd suggest that the isolator is there for a good safety reason, so use it.