Meaning Of The Leds On The Braking Module - Siemens SINAMICS S120 Equipment Manual

Note
Applying a high signal to terminal X21.1 inhibits the Braking Module. On a falling edge,
pending error signals are acknowledged.
The pre-warning for I*t monitoring is output as a high level on reaching 80 % of the maximum
braking resistor ON time.
Only braking resistors approved by Siemens for this component are identified automatically.
5.1.3.5

Meaning of the LEDs on the Braking Module

Table 5-3 Braking Module Booksize – description of the LEDs
LED Color
READY - off
Green Continuous
Red Continuous
DC LINK - off
Green Flashing
SINAMICS S120 Booksize Power Units
Equipment Manual, (GH2), 07/2007, 6SL3097-2AC00-0BP5
Status
Electronics power supply is missing or outside permissible
tolerance range.
Component deactivated via terminal.
Component is ready to operate.
Overtemperature.
Overcurrent switch-off.
I t monitoring activated.
2
Ground fault/short-circuit.
Note:
In the event of an overtemperature, the error cannot be
acknowledged until a cooling time has elapsed.
Electronics power supply is missing or outside permissible
tolerance range.
Component not active.
Component active (DC link discharge via braking resistor in
progress).
Description, cause
Booksize DC Link Components
5.1 Braking Modules
Remedy
–
–
Diagnose fault (via
output terminals) and
acknowledge it (via
input terminal)
–
–
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