The FMGS will apply ROLL LIMIT 1 or 2 as appropriate...
Generally Roll Limit 2 is applied. It is based on TAS (varies between 15 to 25 degress)
Roll Limit 1 is applied when the roll limit 2 turn does not capture the engaged leg (intercepting LOC, etc). The max bank angle for Roll Limit 1 is 30 degress.
During an engine out condition, both these limits are set to max 15...
--> Covered well in Honeywell FMGS manual...You will not find this info in FCOMs
cheers,
google