Siemens SINAMICS S120 Equipment Manual page 150

Power Modules
5.3 Power Modules Chassis
Electric shock when live parts of the DC link are touched
Irrespective of the state of the LED "DC LINK", hazardous DC link voltages can be present.
Contact with live parts can result in death or serious injury.
• Observe the warning information on the component.
Table 5- 51 Meaning of the LED "POWER OK" on the Control Interface Module in the Power Module
LED Color
POWER OK Green
148
WARNING
Status
Off
On
Flashing
Description
DC-link voltage < 100 V and voltage at –X9:1/2 less than 12 V.
The component is ready for operation.
There is a fault. If the LED continues to flash after you have
performed a POWER ON, please contact your Siemens service
center.
Manual, 06/2019, 6SL3097-5AL00-0BP1
AC Drive