No data pulled from Salesforce?

You do need to set up the settings in the plugin’s Scheduling tab. If you’ve already done this and you’re not seeing any log entries even in debug mode, that would suggest to me that your site has cron issues. There’s a bit of troubleshooting info about that here: https://github.com/MinnPost/object-sync-for-salesforce/blob/master/docs/troubleshooting.md#object-map-issues-and-sync-issues

But I think my suggestions would be:

1. Make sure your scheduling settings are configured
2. Make sure cron is working, or figure out why it isn’t
3. Make sure Action Scheduler is actually running the tasks it’s supposed to run.