YASKAWA SI-P1/ V7, Instructions Manual, Page: 6 / 9

- 7 -
4 INTERCONNECTION
Fig.2 shows the interconnection between the inverter, the SI-P1/V7 unit and the PROFIBUS-DP master.
Fig. 2 Interconnection between Devices
: Precautions on Wiring
(1) Separate the wiring for SI-P1/V7 communications from the main circuit wiring or other power
cables.
(2) Use a shielded twisted-pair cable conforming with the PROFIBUS specifications for the
communications cable.
5 WIRING
(1)Table 2 shows the functions of the SI-P1/V7 PROFIBUS-DP bus connection terminals.
Table 2 Function of PROFIBUS-DP Bus Connection Terminals
Terminal
No.
Name Explanation
1 +5V BUS Not used.
2 GND BUS Not used.
3 A-Line
Minus RxD/TxD according to RS-485 specifications
4 B-Line
Plus RxD/TxD according to RS-485 specifications
5 Shield Shielded connection terminal of bus cable
6 RTS Not used.
1 2 3 4 5 6
Terminal
Block
(JP3)
Termination
Resistor
Selector Switch
NOTE
8
3
RxD/TxD-N
RxD/TxD-P
9-pin
D-SUB
1
2
3
4
5
6
RxD/TxD-N
RxD/TxD-P
Shield
SI-P1/V7 unit
Inverter
Bus
connection
terminals
PROFIBUS-DP master
CN1
(50P)
PE
T
U
V
W
M
VS-606 V7
CN2
(50P)
3-phase
power supply
P
Motor
JP3
R
S