Siemens SINUMERIK 840D sl Manual

Connection of the Components
5.1 Power Supply Interface Variants
Guide for the SINUMERIK 840D sl machine configuring
5-4 Manual, 07/2006 Edition, 6FC5397-6CP10-0BA0
5.1.4 Operating line connection components via an isolating transformer
The isolating transformer converts the network configuration of the system (e.g. IT/TT
system) to a TN system. Additional voltage adaptation to the permissible voltage tolerance
range is possible.
An isolating transformer must be used in the following cases:
● The insulation of the Motor Module and/or the motor is not suitable for the voltages that
occur.
● There is no compatibility with an existing residual-current protective device.
● The installation altitude is higher than 2000 m above sea level.
● A line filter should be used in a line supply system that is not a TN line supply system with
grounded neutral conductor.
Caution
If the supply voltage is greater than 480 V +10 %, it is not permissible to use an
autotransformer.
An isolating transformer must be used to ensure protective separation.

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