Siemens SINAMICS S120 Combi - X520 Sensor Power Supply; X521 Fail-Safe Digital Inputs + Power Supply with Forced Dormant Error Detection

Additional system components
10.1 Terminal Module TM54F
SINAMICS S120 Combi
176 Manual, Edition 07/2012, 6SL3097-4AV00-0BP3
10.1.3.4 X520 sensor power supply
Table 10- 4 X520 sensor power supply
Terminal Designation Technical specifications
1 L3 Voltage: +24 V DC
Max. total load current: 500 mA,
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2 M1
Without forced dormant error detection
10.1.3.5 X521 fail-safe digital inputs + power supply with forced dormant error detection
Table 10- 5 Terminal block X521
Terminal Designation
1)
Technical specifications
1 L1+ Voltage: +24 V DC
Max. total load current: 500 mA
2 DI 0
3 DI 1+
F-DI 0
4 DI 2
5 DI 3+
F-DI 1
Voltage: -3 V to +30 V DC
Typical current consumption: 3.2 mA at 24 V
Electrical isolation:
Reference potential, refer to terminals 6, 7, 8
All digital inputs are electrically isolated.
Level (incl. ripple)
High level: 15 V to 30 V
Low level: -3 V to +5 V
Input delay:
2)
For "0" → "1": 30 μs (100 Hz)
For "1" to "0": 60 μs (100 Hz)
6 DI 1- F-DI 0 Reference potential for DI 1+
7 DI 3- F-DI 1 Reference potential for DI 3+
8 M1 Reference potential for DI 0, DI 2, L1+
An F-DI comprises a digital input and a 2nd digital input where, in addition, the cathode of the optocoupler is fed-out.
F-DI 0 = terminals 2, 3 and 6
F-DI 1 = terminals 4, 5 and 7
Max. connectable cross-section: 1.5 mm²
Type: Screw terminal 1 (see "Control cabinet installation and EMC/Connection system")
1) DI: Digital input, F-DI: Fail-safe digital input
2) Pure hardware delay