Siemens Simovert Masterdrives Compendium page 37

12.2010
2.2 Compact and chassis-type units
2.2.1 Water-cooled units
Type B to G
Type ≥ J
2.2.2 Single-axis drive with Compact or chassis-type units
2.2.3 Multi-axis drive with Compact or chassis-type units
Siemens AG 6SE7087-6QX70 (Version AM)
SIMOVERT MASTERDRIVES
If you are using water-cooled MASTERDRIVES please note that the
permissible operating pressure depends on the construction type.
Operating pressure ≤ 1 bar. Operating pressures above 1 bar not
permitted! If the system is to be operated at higher pressure, the
pressure on each unit must be reduced to 1 bar initial pressure.
Operating pressure ≤ 2.5 bar. Operating pressures above 2.5 bar not
permitted! If the system is to be operated at higher pressure, the
pressure on each unit must be reduced to 2.5 bar initial pressure.
The single-axis drive (see Fig. 2-4 on page 2-9) is used for single-axis
applications or where energy balancing over several axes is not wanted
or not possible.
In this case, only one converter is used that, where applicable, is
connected directly to the three-phase system via an external main
contactor, a line filter and a line reactor. Any regenerative energy is
dissipated in the braking resistor.
In the case of multi-axis drives, several inverters are connected to the
line voltage via a common rectifier unit.
A 24 V power supply is needed for the rectifier unit.
The regenerative energy originating in one axis can be used by the
other motors, stored in the capacitor module or dissipated in the
braking resistor.
♦ Configuration examples:
• Multi-axis drive with Compact units
(see Fig 2-5 on page 2-10)
• Multi-axis drive with chassis-type units
(see Fig. 2-6 on page 2-11)
Compendium Motion Control
Configuration and Connection Examples
2-9