Additional options for wiring the digital inputs
The following diagram shows how you supply the digital inputs and digital outputs with an
external voltage.
If you wish to connect an external power supply with the GND potential of the converter, then
you must connect terminals 28 and 69 together.
9
H[W
*1'
H[W
9RXW
*1'
',&20
',
',
',
',
',
',
'212
'2&20
'21&
'212
'2&20
'21&
;
;
;
Figure 4-14 Connecting contacts switching to p potential with an external power supply
The following diagram shows how you use the digital inputs for the contacts that switch to m
potential.
9RXW
*1'
',&20
',
',
',
',
',
',
'212
'2&20
'21&
'212
'2&20
'21&
9
H[W
*1'
H[W
;
;
;
Figure 4-15 Connecting contacts switching to m potential with an external power supply
WARNING
Electric shock due to unsuitable power supply
When equipment is connected to an unsuitable power supply, exposed components may
carry a hazardous voltage that might result in serious injury or death.
● Only use power supplies that provide SELV (Safety Extra Low Voltage) or PELV-
(Protective Extra Low Voltage) output voltages (maximum 60 V DC briefly) for all
connections and terminals of the electronics modules.
Wiring
4.2 Control interfaces
SINAMICS G120X converter
102 Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC
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