Connecting
5.1 Wiring
SIMOTION C
92 Operating Instructions, 02/2012
5.1.2 Configuring the electrical installation
General rules for operating a SIMOTION C
You must observe the following primary rules for integrating a SIMOTION C in an automation
system or plant.
System startup after certain events
The following table identifies considerations required for startup of a system following certain
events.
Table 5- 1 System startup
If there is ... Then ...
Startup after voltage drop or power
failure
All hazardous operating conditions must be avoided. If
necessary, force an EMERGENCY STOP.
Startup after releasing the
EMERGENCY STOP apparatus
must always be controlled and defined.
Supply voltage
The following table identifies the considerations required for the supply voltage.
Table 5- 2 Supply voltage
Scope Requirement
Stationary systems without all-pole
power disconnect switches
A power disconnect switch or a fuse must be provided in the
electrical installation for the building.
Load power supply, power supply
modules
The set rated voltage range corresponds to the local supply
voltage.
All electric circuits The fluctuation/deviation of the supply voltage from the rated
value must be within the permissible tolerance (see Technical
data for S7-300 modules).
24 VDC supply
The following table identifies the considerations required for the 24 V supply.
Table 5- 3 24 V supply
Scope Requirement
buildings external lightning protection. Take lightning protection
measures
24 V DC supply lines, signal lines internal lightning protection (e.g. lightning conductors).
24 V supply Safe (electrical) isolation of extra-low voltage
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