Wiring - Siemens SIMATIC S7-1500 Manual

Wiring

You connect the encoder signals, the digital input and output signals and the encoder
supplies to the 40-pin front connector of the technology module. In addition, you connect the
supply voltage for supplying the module and digital outputs and for producing the encoder
supply voltages to the 4-pin power supply element.
You can find the pin assignment of the front connector and the power supply element in the
following two sections.
You can find information on wiring the front connector, shielding the cable, etc., in system
manual S7-1500 / ET 200MP Automation System
(http://support.automation.siemens.com/WW/view/en/59191792), section Wiring.
Supply voltage L+/M
You connect the supply voltage to terminals L+ (terminal 41/42) and M (terminal 43/44). An
internal protection circuit protects the technology module from reverse polarity of the supply
voltage. The technology module monitors whether the supply voltage is connected.
Pin assignment for the power supply element
The power supply element is plugged onto the front connector and serves to supply the
technology module. For this, you must connect the supply voltage to terminal 41 (L+) and
terminal 44 (M). Use terminal 42 (L+) and terminal 43 (M) to loop the supply voltage through
to the next module.
Figure 3-1
L+
M
Encoder supplies
For supplying the encoders and sensors connected to the digital inputs, the technology
module provides 24 V DC and 5 V DC supply voltages at outputs 24VDC (terminal 9/29) and
5VDC (terminal 7/27) with reference to M (terminal 8/28). For supplying the sensors
connected to the digital inputs, the technology module provides a 24 V DC supply voltage at
output 24VDC (terminal 9/29). Both voltages are monitored for short-circuit and overload.
20
Connection of power supply element
Supply voltage 24 V DC
Ground for supply voltage
Technology module TM PosInput 2 (6ES7551-1AB00-0AB0)
Manual, 06/2018, A5E03982218-AB
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