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Siemens DQ 4x24VDC/2A HS User Manual Page 11

Simatic et 200sp digital output module.
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Connection: 2-wire connection of actuators
The figure below shows an example for the terminal assignment of the digital output module
DQ 4×24VDC/2A HS on the BaseUnit BU type A0 without AUX terminals (2-wire
connection).
2-wire connection
Backplane bus interface
Control unit
Polarity reversal protection
Color identification label CCxx (optional)
Filter connection supply voltage (only
when light-colored BaseUnit is present)
DQ
+ Output signal, channel n
n
DQ
-
Reference output signal, channel n
n
Figure 3-1
Block diagram and terminal assignment for 2-wire connection of actuators
Digital output module DQ 4x24VDC/2A HS (6ES7132-6BD20-0DA0)
Manual, 03/2015, A5E34944434-AA
24 V DC
Supply voltage L+ (infeed for light-colored BaseUnit
only)
M
Ground
P1, P2, AUX
Internal self-assembling voltage buses
Connection to left (dark-colored BaseUnit)
Connection to left interrupted (light-colored BaseUnit)
DIAG
Error or Diagnostics LED (green, red)
.0, .1, .2, .3
Channel status LED (green)
PWM
Pulse width modulation LED (green)
OVS
Oversampling LED (green)
PWR
Power LED (green)
3.1 Wiring and block diagram
Wiring
11

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