09.02  Connection 
Siemens AG    6SE7087-6AK85-1AA0 
3-15 
Rectifier/Regenerating Unit    Operating instructions 
3.3  Control terminal block and serial interface 
WARNING 
 
The rectifier/regenerating unit must be isolated before connecting the control leads to the 
CUR. 
 
You can control the rectifier/regenerating unit over the following interfaces: 
♦  Control terminal block on the CUR electronic module 
♦  RS 485 serial interface on the CUR electronic module 
♦  Operator panel OP1S (see Chapter 9 Options) 
♦  RS485 and RS232 serial interface on the PMU X300 
 
CAUTION 
 
The CUR incorporates ESD-endangered components that may be destroyed if improperly 
handled. 
See also under the measures recommended to protect ESD-endangered components in 
the introductory chapter entitled "General". 
 
 
3.3.1  Connectors for the control terminal block 
Conductors with cross-sectional areas of 0.14 to 1.5 mm
2
 (AWG: 26 to 16), or 1 mm
2
 (AWG: 18), finely 
stranded with core end ferrules, can be connected to the connectors (Recommended: 0.5 mm
2
 (AWG: 20)). 
 
3.3.2  Connecting the control leads 
NOTICE 
When installed, control leads must be shielded and isolated from the power cables, laying them at a minimum 
spacing of 20 cm. The shield must be connected at both ends. On the unit's housing, the shield is  
connected with shield clamps. Handling of these clamps is shown in Figure 3.6. 
If they intersect, control and power cables must be run at an angle of 90° to each other. 
 
AoteWell Automation Sales Team
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