X24 24 V Terminal Adapter - Siemens SINAMICS S120 Manual

Terminals X21.3 and X21.4
For operation, the 24 V DC voltage must be connected to terminal X21.3 and ground to
terminal X21.4.
Pulse cancellation is activated if the power supply is disconnected. As a consequence,
regenerative feedback is deactivated and the bypass relay drops out. If the Line Module is
not disconnected from the line supply when the EP terminal is de-energized, for example,
because a line contactor is not installed, then the DC link remains charged.
NOTICE
Damage to the drive electronics when switching the line contactor under load
When switching the line contactor (type according to the recommended selection) under
load, then the contacts will be subject to premature wear. This can cause the contactor to
malfunction, with subsequent damage to the drive electronics.
• Use a leading opening auxiliary contact or use a Voltage Sensing Module (VSM10).
• If this is not possible, then avoid switching the line contactor under load.
Danger to life due to electric shock in the event of voltage flashovers at the temperature
sensor
Voltage flashovers in the signal electronics can occur in motors without safe electrical
separation of the temperature sensors.
• Use temperature sensors that comply with the specifications relating to protective
• If safe electrical separation cannot be guaranteed (for linear motors or third-party
4.4.2.5

X24 24 V terminal adapter

Table 4- 16
Type: Screw terminal 5 (Page 730)
The 24 V terminal adapter is included in the scope of supply.
Booksize Power Units
Manual, (GH2), 07/2016, 6SL3097-4AC00-0BP8
WARNING
separation.
motors, for example), use a Sensor Module External (SME120 or SME125) or Terminal
Module TM120.
X24: 24 V terminal adapter
Terminal
+
M
4.4 Active Line Modules with external air cooling
Designation Technical data
24 V power supply 24 V DC supply voltage
Ground Electronics ground
Line Modules Booksize
177