Siemens Simatic S7-300 Service Manual Page 39

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Power supply modules
2.3 Power supply module PS 307; 10 A; (6ES7307-1KA02-0AA0)
S7-300 Module data
Manual, 02/2013, A5E00105505-08
39
Block diagram PS 307; 10 A
1
/
/
8
0
'&9
Figure 2-3 Block diagram of the PS 307; 10 A power supply module
Line protection
The mains supplies of the PS 307;10 A power supply module should be protected with a
miniature circuit-breaker (for example Siemens 5SN1 series) of the following rating:
Rated current at 230 VAC: 10 A
Tripping characteristics (type): C.
Reaction to atypical operating conditions
Table 2- 3 Reaction to atypical operating conditions of the PS 307; 10 A power supply module
If ... Module reaction DisplayDC 24 V
.output circuit is overloaded:
I > 13 A (dynamic)
10 A < I ≤ 13 A (static)
Voltage dip, automatic voltage recovery
Voltage drop (reduction of service life)
flashes
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
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