Only in the test mode / walk test mode (DIP switch 1 in the SA68P on) the detector reacts immediately and lights up the LED of a motion detector during movement.
If the test mode works, everything is ok
ATTENTION: Turn off DIP switch 1 after the test or your battery will be drained very quickly.
The detector has a battery saving mode and does not send for 3 minutes after each detection.
So if you pass the detector even if the control panel is off, it will not work for 3 minutes.
If you want to do a practical test you must ensure that the detector has not seen anything for 3 minutes before testing it.