Siemens Sinumerik 802D sl Instruction Manual page 39

Digital outputs
The diagram below shows the connector pin assignment for the digital outputs at connection
X111 (example). The connector pin assignment of X222 and X333 should be performed
analogously.
Fig. 4-6 Connector pin assignment for the digital outputs
To supply the digital outputs, an external 24 V DC power supply must be connected to
DOCOMx (X111, X222, X333: pins 47, 48, 49, 50).
The reference ground of the external power supply must be connected to X111, X222, X333:
pin 1 (M).
Caution
It is the user's responsibility to ensure that the max. current consumption per DOCOMx pin
(X111, X222, X333: pins 47 through 50) does not exceed 1 A.
It is imperative to connect the 24 V power supply for the digital outputs for DOCOMx to all
four pins (X111, X222, X333: pins 47 through 50).
Danger
!
The 24 V power supply is to be designed as functional extra-low voltage with protective
separation in accordance with EN60204-1, Section 6.4, PELV (with M ground).
Siemens Automation Parts
SINUMERIK 802D sl Instruction Manual (BA), 05/2005 Edition
6FC5 397-0CP10-1BA0
PP72/48
X111
Pin number:
47, 48, 49, 50
(DOCOM1)
31
Driver
Driver 32
:
:
:
:
46
Driver
1 (M)
M
4.3 PP 72/48 I/O module interfaces
24 V DC ext. power
supply
0V
+24 V
Relay
Interfaces
4-37