X21 Ep Terminals - Siemens Sinamics S120 Manual

Table 4- 45 Braking resistors with a thermostatic switch for 20 kW and 40 kW Basic Line Modules
Braking resistor
6SE7018-0ES87-2DC0
6SE7021-6ES87-2DC0
6SE7023-2ES87-2DC0
6SE7028-0ES87-2DC0
1)
Not suitable for 20 kW Basic Line Module
1)
For detailed technical information on the braking resistors, see the section entitled Braking
resistors (Page 577).
4.6.2.4

X21 EP terminals

Table 4- 46 X21 EP terminal / temperature sensor
Terminal
1
2
3
4
Type: Screw terminal 1 (Page 755)
Max. cross-section that can be connected: 1.5 mm
The temperature sensor type and the temperature output can be selected by parameter (see the SINAMICS S120/S150
1)
List Manual).
Temperatures are detected but not evaluated in the Basic Line Module.
2)
Booksize Power Units
Manual, (GH2), 04/2014, 6SL3097-4AC00-0BP6
R in Ω P
N
80 1,25
40 2,5
20 5
8 12,5
Designation
+ Temp
- Temp
EP +24 V (pulse enable)
EP M (Enable Pulses)
2
4.6 Basic Line Modules with internal air cooling
in kW 4 x P
5
10
20
50
Technical data
Temperature sensors
bimetallic switch with NC contact
With the 20 kW and 40 kW Basic Line Modules, the
temperature sensor of the braking resistor (bimetallic
switch with NC contact) is connected to the
temperature input.
Response thresholds of the temperature input:
Temperature at the braking resistor in the operating
range → resistance value ≤ 100 ohms
Overtemperature at the braking resistor → resistance
value > 100 ohms
Fault reactions: An alarm is output and the Basic Line
Module is deactivated with a fault after one minute, if
overtemperature is still present at the braking resistor.
If there is no braking resistor, terminals 1 and 2 must
be jumpered to deactivate the overtemperature.
Voltage 24 V DC
Current consumption: 10 mA
Isolated input
Signal propagation times:
L → H: 100 μs
H → L: 1000 μs
Line Modules Booksize
in kW P in kW
N max
7,5
15
30
75
: KTY84-1C130 / PTC
1) 2)
/
2)
235