Siemens SINAMICS S120 Equipment Manual page 121

Table 5-7 Control supply module - description of the LEDs
LED Color
READY -
Green
Red
DC LINK -
Orange
Red
Booksize Power Sections
Equipment Manual, (GH2), 04.2004 Edition, 6SL3097-2AC00-0BP0
State Description
OFF Electronics power supply outside permissible tolerance range.
Continuous Ready for operation. Output voltage within tolerance range.
Continuous Overcurrent tripping or overtemperature.
OFF Electronics power supply outside permissible tolerance range.
Inactive.
Continuous DC link voltage within permissible tolerance range (only when
ready for operation).
Continuous No power in the DC link; component is supplied with power from
supply system.
DC Link Components Booksize
5.4 Control supply module (available soon)
5-21