Siemens SIMATIC S7-300 Module data Hardware And Installation Manual

Wiring
S7-300 Programmable Controller Hardware and Installation
A5E00105492-01
6-5
6.3 Adjusting the power supply module to mains voltage
Introduction
You can operate the S7-300 power supply on 120 VAC or on 230 VAC. Factory
setting for PS 307 is always 230 VAC.
Setting the mains voltage selector switch
Check to see whether the selector switch is set to the correct mains voltage.
You can change the selector switch setting as follows:
1. Remove the protective cap with the help of a screwdriver (1).
2. Set the selector switch to your mains voltage (2).
3. Replace the cover.
1
2
Figure 6-2 Setting the mains voltage selector switch for the PS 307

Siemens SIMATIC S7-300 Module data Specifications

General

Series	S7-300
Manufacturer	Siemens
Protection Class	IP20
System	SIMATIC S7-300
Digital Inputs	Varies by module
Digital Outputs	Varies by module
Analog Inputs	Varies by module
Analog Outputs	Varies by module
Central Processing Unit	Varies by CPU model
Supply Voltage	24V DC or 120/230V AC
CPU Type	Varies (e.g., CPU 312, CPU 315, etc.)
Memory	Varies by CPU model
Communication Interfaces	MPI, PROFIBUS
Programming Languages	LAD, FBD, STL, SCL, GRAPH
Operating Temperature	0°C to 60°C
Storage Temperature	-40°C to 70°C
Relative Humidity	10% to 95% (non-condensing)