Siemens SIMATIC User Manual

Power supply modules
2.4 Power supply module PS 305; 2 A; (6AG1305-1BA80-2AA0)
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ
43
Schematic circuit diagram of PS 305; 2 A
Figure 2-4 Schematic circuit diagram of power supply module PS 305; 2 A
Line protection
The mains supply of the PS 305 power supply module (2 A) should be protected with a
miniature circuit-breaker (for example Siemens 5SN1 series) of the following rating:
● Rated current at 110 V DC: 10 A
● Tripping characteristics (type): C.
Reaction to atypical operating conditions
Table 2- 4 Reaction of the PS 305;(2 A) power supply module to atypical operating conditions
If ...
... then ...
24 V DC LED
... the output circuit is overloaded:
• I > 3.9 A (dynamic)
• 3 A < I ≤ 3.9 A (static)
Voltage dip, automatic voltage recovery
Voltage drop, reduction of service life
Flashing
... short-circuit at the output Output voltage 0 V; automatic voltage recovery
after short-circuit is eliminated
off
overvoltage on primary side
risk of destruction
-
undervoltage on primary side
Automatic shutdown; automatic voltage recovery
off

Siemens SIMATIC Specifications

General

Product type designation	SIMATIC
CPU	Varies by model
Memory	Varies by model
Input/Output	Varies by model
Communication	Varies by model
Programming Language	STEP 7
Operating Temperature	0°C to 60°C (varies by model)
Protection Class	IP20
Category	Programmable Logic Controller (PLC)