Wiring; Rules And Regulations For Operation - Siemens SIMATIC S7-1500 Automation System System Manual

Wiring

6.1

Rules and regulations for operation

Introduction
As part of plants and/or systems, the S7-1500 automation system requires adherence to
special rules and regulations, depending on the field of application.
This section provides an overview of the most important rules that must be observed for the
integration of the S7-1500 CPU in a plant or system.
Specific application
Please observe the safety and accident prevention regulations applying to specific
applications (e.g., machine protection guidelines).
EMERGENCY-STOP devices
"EMERGENCY-STOP" devices in accordance with IEC 60204 (corresponds to
DIN VDE 0113) must remain effective in all operating modes of the plant or system.
Excluding hazardous plant states
No dangerous operating states may occur when
● The CPU starts up again after a voltage dip or a power failure
● The bus communication is resumed after a fault
If necessary, EMERGENCY-STOP must be forced!
An uncontrolled or undefined startup is not permitted after the EMERGENCY STOP is
unlocked.
Line voltage
Below is described, what you must pay attention to with respect to the supply voltage (see
the section Statements on insulation tests, protection classes, degree of protection, and
rated voltage (Page 173)):
● For fixed plants or systems without multipole circuit breaker, a mains disconnection
● For all power circuits of the S7-1500 CPU, the fluctuation/deviation of the line voltage
S7-1500 Automation System
System Manual, 01/2013, A5E03461182-01
device (multipole) must be available in the building installation.
from the rated value must be within the permitted tolerance.
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