Electrical installation
4.9 Signal connections
Converter cabinet units
112
Operating Instructions, 07/2016, A5E03347396A
X520: 4 digital inputs
Table 4- 18 Terminal block X520
Terminal
Designation
1)
Technical data
1
DI 0
Voltage: - 3 … +30 V
Current consumption typical: 10 mA at 24 V DC
Input delay:
for "0" to "1": Typ. 50 µs max. 100 µs
for "1" to "0": Typ. 130 µs, max. 150 µs
Electrical isolation:
Reference potential is terminal M1
Signal level (including ripple)
High level: 15 … 30 V
Low level: -3 … +5 V
2
DI 1
3
DI 2
4
DI 3
5
M1
6
M
Max. connectable cross-section: 1.5 mm²
1)
DI: digital input; M1: ground reference; M: Electronics ground
Note
Ensuring the function of digital inputs
An open input is interpreted as "low".
Terminal M1 must be connected so that the digital inputs (DI) can function.
This is achieved through one of the following measures:
1.
Also route the reference ground of the digital inputs.
2.
A jumper to terminal M. (Note: This removes the electrical isolation for these digital
inputs.)
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