Line Connection Booksize
2.9 Active Interface Modules internal air cooling
Booksize power units
86 Manual, (GH2), 06/2008, 6SL3097-2AC00-0BP6
2.9.3.5 X121 temperature sensor and fan control
Table 2-22 Plug-in screw terminal X121
Terminal Designation Technical specifications
1 +Temp Output Temperature switch
must be connected to X21 of the Active Line Module.
2 -Temp Temperature switch output
3 +24 V power supply for digital
inputs
Current carrying capacity: 500 mA
4 Disable Fan The fan can be disabled. The fan may only be switched
off while the Active Line Module is disabled.
Max. connectable cross-section: 1.5 mm
2
Note
If the terminals are not connected (or connected with low level), the fan will run in continuous
mode.
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