There is no golden rule about the numbers you can do. It all depends on your account's age, what proxy you are using, if you used many different automation software etc.
To be the safe, you should always warm up your accounts when you start to use it with FollowPlanner. That means, that you should start with a low hourly limit and gradually increase it.
If you are experiencing feedback required errors on like or follow, you should stop all activity for at least 24 hours to let it cool down.