M9014电源告警

历史日志里有这么一条日志，现在查看电源状态正常，请帮忙分析下这个大概是什么原因引起的，谢谢！

%Nov  7 17:31:45:822 2018 M9014 DRVPLAT/2/DrvDebug:
 Warning: Not enough power on chassis 1, system available power is 0w.

现在查看电源信息：

M9014>disp power
 Chassis 1:
 Power        0 State: Normal
 Power        1 State: Normal
 Power        2 State: Absent
 Power        3 State: Absent
 Power        4 State: Normal
 Power        5 State: Normal​​​

 Chassis 2:
 Power        0 State: Normal
 Power        1 State: Normal
 Power        2 State: Absent
 Power        3 State: Absent
 Power        4 State: Normal
 Power        5 State: Normal