Siemens SINAMICS S110 - Overvoltage Protection; Typical 24 V Current Consumption of the Components

Cabinet design and EMC for components, Blocksize format
10.5 24 V DC Supply Voltage
SINAMICS S110
Manual, 07/2015, 6SL3097-4AC10-0BP5
235
10.5.3
Overvoltage protection
Surge protection devices are required for cable lengths greater than 30 m.
The following Weidmüller overvoltage protectors are recommended for protecting the
components' 24 V power supply and the 24 V signal cables from overvoltage:
Table 10- 2 Recommendations for overvoltage protection
24 V power supply
24 V signal cables
Weidmüller
Item no.: PU III R 24V
Article No.: 8860360000
Weidmüller
Item no.: MCZ OVP TAZ
Article No.: 844915 0000
The overvoltage protectors must always be placed next to the area to be protected, e.g. at
the entry point to the cabinet.
10.5.4
Typical 24 V current consumption of the components
A separate 24 V power supply must be used for the SINAMICS S110 drive line-up.
The following table can be used to calculate the 24 V DC power supply. The values for
typical current consumption are used as a basis for configuration.
Table 10- 3 Overview of 24 V DC current consumption
Component
Typical current consumption [A
DC
]
Control Units
CU305 PN without load
Per digital output
0.8
0.1
CU305 DP without load
Per digital output
0.8
0.1
CU305 CAN without load
Per digital output
0.8
0.1
DRIVE-CLiQ and brake
DRIVE-CLiQ (e.g. motors with DRIVE-CLiQ interface)
Typ. 0.25/Max. 0.45
Brake (e.g. motor holding brake)
Typ. 0.4 to 1.1/Max. 2
Sensor Modules Cabinet
SMC10
without/with encoder system
0.20 / 0.35
SMC20
without/with encoder system
0.20 / 0.35
SMC30
without/with encoder system
0.20 / 0.55