X121 Alarm Contacts For Temperature Switch - Siemens SINAMICS S120 Equipment Manual

4.9.3.5

X121 alarm contacts for temperature switch

Table 4-21 Plug-in screw terminal X121
Terminal
1
2
3
4
Max. connectable cross-section: 1.5 mm
Note
If the terminals are not connected (or connected with low level), the fan will run in continuous
mode. The fan can be switched off by applying 24 V (against M).
Booksize cold-plate power units
Manual, (GH4), 03.2007, 6SL3097-2AJ00-0BP4
Designation
+Temp
-Temp
Disable Fan +24V
Disable Fan M
2
Technical specifications
Rated current at cosφ 1: 2.5 A (max. 5 A)
Voltage: 12 - 250 V (12 - 100 V
AC
Temperature switch output
Temperature switch output
The fan can be disabled. The fan should only be
switched off while the Active Line Module is disabled.
Line connection
4.9 Active Interface Module
)
DC
77