Siemens SINAMICS G130 Operating Instructions Manual page 97

Note
Ensuring the function of digital inputs
An open input is interpreted as "low".
To enable the digital inputs (DI) to function, terminal M2 must be connected.
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.)
Note
If the 24 V supply is briefly interrupted, then the digital outputs are deactivated during this
time.
X124: Electronic power supply
Table 4- 27 Terminal block X124
Terminal
+
+
M
M
Max. connectable cross-section: 2.5 mm²
The maximum cable length that can be connected is 10 m.
Note
Looping through the supply voltage
The two "+" and "M" terminals are jumpered in the connector. This ensures that the supply
voltage is looped through.
The power can be supplied via terminals X41.1/2 of the Power Module.
Note
Screw terminal block on tightly
The terminal block must be screwed on tightly using a flat-bladed screwdriver.
Inverter chassis units
Operating Instructions, 07/2016, A5E00331449A
Function
Electronic power supply
Electronic power supply
Electronics ground
Electronics ground
Technical data
Voltage: 24 V DC (20.4 to 28.8 V)
Current consumption: max. 1.0 A (without DRIVE-
CLiQ or digital outputs)
Max. current via jumper in connector: 20 A (15 A
according to UL/CSA)
Electrical installation
4.10 Signal connections
97