Wiring; Rules And Regulations For Operation - Siemens SIMATIC S7-1500 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 OFF equipment to IEC 60204 (corresponds to DIN VDE 0113) must remain
effective in all operating modes of the plant or system.
Excluding hazardous plant states
Hazardous operating states must not 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 192)):
● For fixed plants or systems without multipole circuit breaker, a mains disconnection
● For load power supplies, the configured rated voltage range must correspond to the local
● For all power circuits of the S7-1500 CPU, the fluctuation/deviation of the line voltage
S7-1500 Automation System
System Manual, 02/2014, A5E03461182-AB
device (multipole) must be available in the building installation.
line voltage.
from the rated value must be within the permitted tolerance.
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