You must connect terminals 28 and 69 together if the external and the internal power supplies
should be at the same potential.
9RXW
*1'
',&20
',
',
',
',
',
',
'212
'2&20
'212
'2&20
'212
'2&20
'21&
'2&20
'212
9
H[W
*1'
H[W
;
;
;
Figure 4-12 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
'212
'2&20
'212
'2&20
'21&
'2&20
'212
9
H[W
*1'
H[W
;
;
;
Figure 4-13 Connecting contacts switching to m potential with an external power supply
Wiring
4.2 Control interfaces
SINAMICS G120XA converter
80 Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB
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