Siemens SINAMICS G115D User Manual

Maximum current limit for daisy-chain connection
The maximum permissible number of daisy-chained converters depends on the maximum
current limit for daisy-chain connection. The table below gives the maximum current limits
dependent upon the cable cross-sections and surrounding air temperature:
Converter IEC-compliant cable UL-compliant cable
Connector variant Glanded variant
Motor-mounted
converter
23A @ 4mm
2
, 40 °C
16A@ 4mm
2
, 55 °C
16A @ 12AWG, 40°C
11A@ 12AWG, 55°C
16A @ 12AWG, 40°C
13A@ 12AWG, 45°C
12A@ 12AWG, 48°C
Wall-mounted
converter
25A @ 6mm
2
, 40 °C
21A@ 6mm
2
, 55 °C
24A @ 10AWG, 40°C
16A@ 10AWG, 55°C
16A @ 9AWG, 40°C
13A@ 9AWG, 45°C
12A@ 9AWG, 48°C
Further information on protective devices
For both connector and glanded variants, the input for the daisy chained converters can be
protected by group fusing.
For more information about the permissible types of the group fusing, see the SINAMICS
G115D Product Information of Protective Devices:
Protective devices (https://support.industry.siemens.com/cs/ww/en/ps/27867/man)
Further information
If you don't use daisy chain connection, cover the unused connectors with the optional
connector cover kit to maintain the IP rating of the system.
Connector cover kit (Page36)
Wiring
5.9Connecting the line supply
SINAMICS G115D Wall Mounted distributed drive
72 Operating Instructions, 07/2023, FW V4.7 SP14, A5E52808211A AA

Siemens SINAMICS G115D Specifications

General

Brand	Siemens
Model	SINAMICS G115D
Category	DC Drives
Language	English