3.9 Control I/O Configuration
♦ MEMOBUS/Modbus Termination
This drive is equipped with a built in termination resistor for the RS-422/485 communication port. DIP switch S2 enables
or disabled the termination resistor as shown in
Table 3.12
. The OFF position is the default. The termination resistor
should be placed to the ON position when the drive is the last in a series o f slave drives. Refer to
Switches and Jumpers
on the Terminal Board on page 67
for locating switch S2.
Table 3.12 MEMOBUS/Modbus Switch Settings
S2 Position
Description
O N
Internal termination resistor ON
O FF
Internal termination resistor OFF (default setting)
Note: Refer to
M E M O B U S /M odbus C om m unications on page 367
for details on M EM OBUS/M odbus.
T
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YASKAWA ELECTRIC SIEP C710616 33D YASKAWA AC Drive L1000A Technical Manual
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