Siemens SINUMERIK 840D sl Manual

Connection of the Components
5.1 Power Supply Interface Variants
Guide for the SINUMERIK 840D sl machine configuring
Manual, 07/2006 Edition, 6FC5397-6CP10-0BA0
5-3
5.1.3 Operating line connection components via an autotransformer
An autotransformer can be used to adapt the voltage in the range up to 3-ph. 480 V AC +10
%.
Caution
To ensure protective separation an isolating transformer must be used for voltages greater
than 3-ph. AC 480 V AC +10 %.
Applications:
● The motor insulation must be protected from excessive voltages.
● The active line module must provide a stabilized DC link voltage. It can be in the range
380 V to 415 V.
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Figure 5-3 Autotransformer

Siemens SINUMERIK 840D sl Specifications

General

Control Type	CNC
Number of Axes	Up to 31
Max Number of Channels	10
Interfaces	Ethernet, PROFIBUS, PROFINET, USB
Interpolation	5-axis interpolation
Operating Temperature	0°C to 45°C
Relative Humidity	Up to 95% (non-condensing)
Display	TFT color display, various sizes
Programming Languages	DIN/ISO
Safety Features	Safety Integrated
PLC	Integrated PLC S7-300
Drive Interface	SINAMICS S120
Data Storage	CF card, USB
Operating System	Windows-based