Siemens SIMATIC ET 200SP - Page 49

Supplements to ET 200SP documentation
2.5 I/O module manuals
Product information on the documentation of the ET 200SP distributed I/O system
Product Information, 02/2021, A5E03799595-BG
49
Manual Digital Output Module DQ 4x24..230VAC/2A ST, Edition 03/2015
Section 3.1 Wiring and block diagram
The following figure shows the block diagram and an example of the pin assignment of the
digital output module DQ 4x24..230VAC/2A ST on the BaseUnit BU type B1.
①
2-wire connection
N
Neutral conductor
②
3-wire connection
1L, 2L
Supply voltage 24 V AC to 230 V AC
③
Backplane bus interface
1N, 2N
Neutral conductor supply voltage
④
Output electronics
PE (AUX)
Protective conductor connection
⑤
Color-coded label CCxx (optional)
DIAG
Diagnostics LED (red/green)
DQn
Output signal, channel n
.0, .1, .2, .3
Channel status LED (green)
L1
Encoder supply
PWR
Power LED (green)
P1, P2, AUX Internal self-assembling voltage buses
Connection to left (dark-colored BaseUnit)
Figure 2-2 Wiring and block diagram for 2-wire and 3-wire connection of actuators.