Producing fault event in CMMN process task


I have process task in CMMN scheme. This process task have service task which generates BpmnError which leads to EndEvent with same BpmnError.

This process task is connected with human task with fault event. The concept is to display and process fault in user task in cmmn scheme.

Currently this is ignored and fault is not propagated. I need to set complete event instead of fault and set condition diamond based on variables.

Question: how to generate fault from process task in CMMN scheme?

Attached is generic illustration of CMMN and BPMN