X520 Sensor Power Supply; X521 Fail-Safe Digital Inputs And Dynamically Adjustable Power Supply - Siemens SINAMICS S120 Manual
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6.6.2.4
X520 sensor power supply
Table 6-35
Without forced dormant error detection
6.6.2.5
X521 fail-safe digital inputs and dynamically adjustable power supply
Table 6-36
X521: Fail-safe digital inputs
Terminal
1
2
3
4
5
6
7
8
An F-DI consists of 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
Type: Screw terminal 1 (Page 321)
DI: Digital input, F-DI: Fail-safe digital input
1)
Pure hardware delay
2)
Note
Execution of a test stop
The test stop of the F-DI 0 to F-DI 4 can only be performed if the F-DI is supplied from L1+.
Control Units and additional system components
Equipment Manual, 06/2020, 6SL3097-5AH00-0BP2
X520: Sensor power supply
Terminal
Designation
1
L3
2
M1
Designation
1)
L1+
DI 0
F-DI 0
DI 1+
DI 2
F-DI 1
DI 3+
DI 1-
F-DI 0
DI 3-
F-DI 1
M1
6.6 Terminal Module TM54F
Technical data
Voltage: +24 V DC
Max. total load current: 500 mA
Technical data
Switched voltage: +24 V DC
Max. total load current: 500 mA
(voltage is switched for a test stop)
Voltage: -3 ... +30 V DC
Electrical isolation: Yes
Reference potential: see terminals 6, 7, 8
Input characteristic acc. to IEC 61131-2, type 1
Input voltage (including ripple)
"1" signal: 15 ... 30 V
"0" signal: -3 ... +5 V
Input current
at 24 V DC: typ. 3.2 mA
at <0.5 mA: Signal "0" reliably detected
Input delay:
2)
for "0" → "1": typ. 30 μs
for "1" → "0": typ. 60 µs
Switching frequency: max. 100 Hz
Reference potential for DI 1+
Reference potential for DI 3+
Reference potential for DI 0, DI 2, L1+
Terminal Modules
161
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