X21 Ep Terminals - Siemens SINAMICS S120 Equipment Manual

3.6.3.5

X21 EP terminals

Table 3-46 Terminal block X21
Terminal
1
2
3
4
Max. connectable cross-section 1.5 mm
Type: Screw terminal 1 (see Connection systems)
NOTICE
The KTY temperature sensor must be connected with the correct polarity.
For operation, 24 V DC must be connected to terminal 3 and ground to terminal 4. Upon
removal, pulse suppression is activated. 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 deactivated (e.g. a main contactor is not installed), the DC link remains charged.
NOTICE
If a drive line-up is switched off by means of the line disconnecting device, the voltage at
terminals 3 (EP +24 V) and 4 (EP M) must be interrupted beforehand. This can be carried
out using a leading breaking auxiliary contact (≥ 10 ms), for example.
This protects external loads located parallel to the drive on the same switching component.
Booksize Power Units
Equipment Manual, (GH2), 07/2007, 6SL3097-2AC00-0BP5
3.6 Smart Line Modules (16 kW und 36 kW) with internal air cooling
Function
+Temp
-Temp
EP +24 V (enable pulses)
EP M (enable pulses)
2
WARNING
Technical specifications
Temperature sensor connection KTY84–1C130/PTC
Voltage: 24 V DC
Current consumption: 10 mA
Isolated input
Signal propagation times:
L → H: 100 μs
H → L: 1000 μs
Line Modules Booksize
241