BQ34Z110 ALERT SIGNAL

Hello,
I tried to set ALERT SIGNAL for bq34z110, but it did not work correctly. Maybe I made some mistake during setting.
I set LED_Comm Configuration as 0x00 (Table 13. 0 = No LED, Table 14. Alert Pin Name P2). Alert Configuration I set as 0x0001 (mask only for DSG). It should set P2 to low voltage level when discharging detect (DSG). But pin P2 was still low, when flag DSG was clear. How should I set it correctly?

Thank you, best regards
Tom