Power Supply - Siemens SIMATIC S7-1500 System Manual

System overview

5.5 Power supply

5.5 Power supply
The R/H CPUs of the redundant system have an integrated system power supply. You can
supplement the integrated system power supply with a system power or load current supply.
System power supply (PS)
The system power supply only provides internally required system voltage and supplies the
communications processors.
Load power supply (PM)
The load power supply (PM) supplies the system components, CPU, and the communications
processors. You can install the load current supply directly to the left of the CPU (without
connection to the backplane bus).
Note
The CPUs are designed for fixed operation and continuous operation on a system power or
load current supply.
System power supply modules
System power supplies supply the internal electronics of the S7-1500R/H modules with power
via the backplane bus. The table below shows the available system power supply modules:
Short designation
Article number
Equipment Manual
Rated input voltage
Output power
Electrical isolation
from the backplane
bus
Diagnostics interrupt
Energy buffering for
data backup in the CPU
124
PS 25 W 24 V DC
6ES7505-0KA00-0AB0
24 V DC
25 W
X
X
---
PS 60 W 24/48/60 V DC
6ES7505-0RA00-0AB0
24 V DC, 48 V DC, 60 V DC
60 W
X
X
---
PS 60 W 120/230 V AC/DC
6ES7507-0RA00-0AB0
120 V AC, 230 V AC
120 V DC, 230 V DC
60 W
X
X
---
S7-1500R/H redundant system
System Manual, 01/2024, A5E41814787-AF