Can cps take my grandchild from me even though i was on cps long time ago, and its closed?

Yes, if they believe your grandchild is in danger. Not because you were on cps a long time ago but because of the current situation, whatever it is. The previous record will matter in two ways, One, it will make any accusations more credible and be used to filter any information they have about the new one. Two, if it comes to a question of a custody determination, the past history will impact the court's consideration of returning a child to you. It might be slightly positive if you were in that past incident very cooperative about correcting problems, etc.