4 Installation
4.2 Electrical Connection
Manual
144
SIPART DR21
C73000-B7476-C143-08
Contacts in the connection are interlocked!
!
CAUTION
Observe the maximum switching voltage! (For excess resonance in phase
shift motors, see “CAUTION” on page 33)
The coupling relay 6DR2804-8B (figure 4-38, page 143) contains 2 relays. The coupling
relay 6DR2804-8A contains 4 relays. The terminals 1 to 9 are therefore available double.
AC 250 V
8A
1250 VA
DC 250 V
8A
30 W at 250 V
100 W at 24 V
4.2.4 Connection of the interface module 6DR2803-8C
4.2.4.1 RS 232 point-to-point (END/END)
Can be inserted in slot 4, set structure switches S84 to S91 for transmission procedure.
RS 485
Rxd
Controller
Remote
system (PC)
4/2
4/3
4/7
4/8
Txd
Reference
2
3
5
RS 232
END/END
SIPART
BUS
RS 485
+150 R
Figure 4-39 Setting on the SES-module 6DR2803-8C with RS 232 point-to-point connection
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