On every points type edit screen you will see a new meta box where you can configure the points payout settings for this points type.
Allow Points Payout
Check this option to allow users request points payouts of this points type.
From this option you can configure the conversion rate between this points type and your currency.
The value of conversion rate will define the value in points in money of your currency (for example $1) and this amount will be applied when the user uses this points type to request a points payout.
Setting a conversion rate of 100 points to $1, which means that every 100 points of this type the user uses for a points payout will apply a conversion to $1, if user request a 1000 points payout then will get a conversion to $10.
The minimum amount allowed per points payout request. Leave it to 0 for no minimum.
The maximum amount allowed per points payout request. Leave it to 0 for no maximum.