LEYBOLD Turbo.Drive TD20 classic - RS 485 Bus Wiring

GA05228_002_C0 - 11/2016 - © Leybold
Operation
19
+ 5 V
390 Ω
150 Ω
390 Ω
X 5
(8)
(7)
TURBO.
DRIVE
X5 (7) X5 (8)
X5 (7) X5 (8)
...
120 Ω
Master
X 5
(6)
(9)
TxD/RxD –
TxD/RxD +
150
TURBO.
DRIVE
TURBO.DRIVE
Fig. 3.6 Connection of the RS 485 bus
For longer cable runs:
Links for activation of
the bus terminator
Bus terminator
for longer cable runs