Siemens 6SE7024-1EP85-0AA1 Operating Instructions Manual page 71

05.2005
X100 - 24 V output,
USS bus
15 kW rectifier unit
33
34
35
36
50 kW / 100 kW
rectifier units
33
34
35
36
X320 - Serial
interface
NOTE
WARNING
Siemens AG 6SE7087-2NP85-0AA0
SIMOVERT MASTERDRIVES
The unit has a 24 V voltage output via which power can be supplied to
up to three connected inverters.
The USS bus connection is linked to the internal 9-pole SUB D socket
of the serial interface and is provided for looping the USS bus.
Terminal Designation
33 +24 V (out)
34 0 V
35 RS485P (USS)
36 RS485N (USS)
Connectable cross-section: 2.5 mm² (AWG 12)
Terminal 33 is at the top when installed.
Table 7-8 External 24 V supply, USS bus
On the front panel there is a 9-pole SUB D socket which can be
coupled with the USS bus of the connected inverters through the
connection X100, terminals 35 and 36.
The electronics of the rectifier unit is not linked to the interface.
The rectifier unit does not have a master or slave function.
This interface is not provided for the start-up of the connected inverters!
If the X320 interface is to be used, the USS bus connection must be
formed (loop through rectifier unit X100 terminal 35, 36 to all inverters
X100 terminal 35, 36).
The interface cannot be operated until start-up of the inverters has
been completed (addressing of slaves has been carried out).
The following can be connected to the X320 interface:
♦ The OP1S operator control panel (pluggable with a catch-lock in the
front panel) for visualization (display) and operator control of the
connected inverters,
♦ A PC with the DriveMonitor program,
♦ Or a higher-level control system.
♦ Only one unit with a master function may be connected-up to the
entire USS bus (OP1S or PC or higher-level control).
♦ If a unit (e.g. PC with DriveMonitor) is connected up to the RS232
interface of the inverters (at X103), no unit with a master function
may be connected up at the entire USS bus.
Operating Instructions
Meaning
24 V voltage output
Reference potential
USS bus connection
USS bus connection
Connecting-up
Range
DC 24 V
0 V
RS485
RS485
7-9