For the second time in a week police union officials will be sitting down with NYPD commissioner William Bratton -- this time without the presence of Mayor Bill deBlasio -- to talk about the current tensions among the rank-and-file with City Hall, said one labor official.

The meeting is slated for Wednesday afternoon and will closet Bratton with the heads of the five unions.  Some of the unions, notably the Patrolmen's Benevolent Association -- have been highly critical of deBlasio in recent weeks, with thousands of officers turning their backs on the mayor during recent police funerals for slain officers Weinjian Liu and Rafael Ramos.

The officers turned their backs on deBlasio even after Bratton asked them not to show disrespect for the mayor.

A spokesman for the PBA wasn't available for comment and an NYPD spokesman didn't return a call for comment.  Monday, Bratton indicated he might take action if found that cops were engaged in any work 'slowdown."