Connecting The Power Supply For Digital Output - Siemens SIMATIC IOT2000 Series Operating Instructions Manual

Installing and connecting the device
3.3 Connecting the IOT2000 Extension Modules
3.3.2

Connecting the power supply for digital output

Note
The device should only be connected to a 9...36 V DC power supply which meets the
requirements of safe extra low voltage (SELV) according to IEC/EN/DIN EN/UL 60950-1.
The power supply must meet the requirement NEC Class 2 or LPS according to IEC/EN/DIN
EN/UL 60950-1.
Note
The power supply must be adapted to the input data of the device, see chapter "IOT2000
Input/Output Module (Page 27)". If there are voltage peaks on power supply lines, use a
protective device in the form of a varistor (MOV) UMOV = U-rated x 1.2 (BLITZDUCTOR
BVT AVD 24 (918 422) or compatible).
Requirement
● A two-core cable with a cable cross-section of 0.75 mm
● A slotted screwdriver with a 3mm blade.
Procedure
1. Switch off the power supply.
2. Connect the lines to the connecting
terminal as shown.
20
to 2.5 mm .
2 2
IOT2000 Extension Modules
Operating Instructions, 2018/05, A5E39456816-AB