Siemens S120 - X120 Digital Inputs (Fail-Safe);Ep Terminal;Temperature Sensor

Control Units, Control Unit Adapters and operating components
7.4 Control Unit CU310-2 DP (PROFIBUS)
AC Drive
Manual, (GH6), 04/2014, 6SL3097-4AL00-0BP4
297
7.4.2.7
X120 digital inputs (fail-safe)/EP terminal/temperature sensor
Table 7- 28 X120 fail-safe digital inputs/temperature sensor input
Terminal
Designation
1)
Technical data
1
+ Temp
2)
Temperature sensors: KTY84-1C130/PTC
Measuring current via temperature sensor connection:
2 mA
2 - Temp
2)
3
DI 16
F-DI 0
Voltage: - 3 … 30 V
Current consumption, typical: 6 mA at 24 VDC
Input delay (typ.):
2)
For "0" → "1": 50 μs
For "1" → "0": 150 μs
Level (incl. ripple):
High signal level: 15 … 30 V
Low signal level: -3 … 5 V
Electrical isolation:
M1: Reference potential for DO16, DI16, DI18 and
DI20
DI17-/DI19-/DI21-: Reference potential for
DI17/DI19/DI21
4 DI17+ / EP +24 V3
(Enable Pulses)
5 DI17- / EP M3
(Enable Pulses)
6
DI 18
F-DI 1
7
DI 19+
8
DI 19-
9
DI 20
F-DI 2
10
DI 21+
11
DI 21-
12
M1
Type: Spring-loaded terminal 1 (Page 437)
Max. cross-section that can be connected: 1.5 mm
2
1)
DI: Digital input; DO: Digital output; F-DI: Fail-safe digital input
2)
Control of Chassis Power Modules: +Temp/-Temp deactivated, temperature input via terminal X41 of the Power
Modules
3)
Pure hardware delay
The maximum cable length that can be connected is 30 m.
Fail-safe digital inputs
An F-DI consists of a digital input and a second digital input to which the cathode of the
optocoupler is connected.
Temperature sensor input
NOTICE
Risk of motor overheating for incorrectly connected KTY temperature sensor
A KTY temperature sensor connected with incorrect polarity cannot detect if the motor
overheats.
• Make sure that you connect the KTY temperature sensor with the correct polarity.
Further information regarding the temperature sensor may be found in the SINAMICS S120
Commissioning Manual, "Temperature sensors for SINAMICS components" section.
The maximum length of the temperature sensor cable is 300 m. The cables must be
shielded. For cable lengths >100 m, cables with a cross-section of ≥1 mm
2
must be used.