After I posted my question I browsed other posts and found this one from PerBear:
Re: EPAC - How to make e-bike with Golden Motor parts legal in Europe
« Reply #19 on: May 05, 2009, 06:08:22 PM »
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Pedal usage sensor (Pedelec) only works when manually enabled - it should automatically be working when powering up
Throttle overrides the pedelec sensor - it should be the other way - throttle should only work when pedaling if connected.
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This means that I have to activate the Pedelec function every time I start the bike for a new ride by performing the following actions:
”7. 1+1 Pedal Assist Mode:
Release the throttle to zero (Neutral) position during riding, press cruise speed controller button twice,
listen beep sound, the system enters into pedelec mode.”
I also implies that I have the throttle function installed and activated in order to activate Pedal Assist as described above.
It would have been more convenient if I could have the Pedelec function always automatically activated.
Grateful if someone who has experience could confirm my conclusions......