Overvoltage Protection; Typical 24 V Current Consumption Of The Components - Siemens SINAMICS S110 Manual

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
24 V power supply
Weidmüller
Item no.: PU III R 24V
Article No.: 8860360000
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
Control Units
CU305 PN without load
Per digital output
CU305 DP without load
Per digital output
CU305 CAN without load
Per digital output
DRIVE-CLiQ and brake
DRIVE-CLiQ (e.g. motors with DRIVE-CLiQ interface)
Brake (e.g. motor holding brake)
Sensor Modules Cabinet
SMC10
without/with encoder system
SMC20
without/with encoder system
SMC30
without/with encoder system
SINAMICS S110
Manual, 07/2015, 6SL3097-4AC10-0BP5
Cabinet design and EMC for components, Blocksize format
Recommendations for overvoltage protection
10.5 24 V DC Supply Voltage
24 V signal cables
Weidmüller
Item no.: MCZ OVP TAZ
Article No.: 844915 0000
Typical current consumption [A
0.8
0.1
0.8
0.1
0.8
0.1
Typ. 0.25/Max. 0.45
Typ. 0.4 to 1.1/Max. 2
0.20 / 0.35
0.20 / 0.35
0.20 / 0.55
]
DC
235