Once you have enrolled the PowerG HW translator into the panel (Advanced settings - Installation - devices - security devices - auto enroll) by pressing the tamper button and programming all zones.
To enable the PGM2 output, go into Advanced settings - Installation - Devices - Security Devices - Add Sensor, Manually enter the PowerG HW Translators DL code and it will enable the PGM2 output for the 2 wire and 4 wire smoke detectors.
Please refer to the Installation Manual for proper wiring.