Memobus/Modbus Termination; Memobus/Modbus Termination - YASKAWA V1000 Technical Manual

3.10 MEMOBUS/Modbus Termination

3.10 MEMOBUS/Modbus Termination

The two ends of the MEMOBUS/Modbus network line must be terminated. The drive has a built-in termination resistor
that can be enabled or disabled using DIP switch S2. If a drive is a single drive on the network or is located at the end of
a network line, set DIP switch S2 to the ON position to enable the termination resistor. Disable the termination resistor on
all slave drives that are not located at the network line end.
Table 3.15 MEMOBUS/Modbus Switch Settings
S2 Position Description
ON Internal termination resistor ON
OFF Internal termination resistor OFF (no termination resistor); default setting
DIP Switch S2
OFF ON
Figure 3.27 DIP Switch S2
Note: Refer to the MEMOBUS/Modbus communications manual for details on MEMOBUS/Modbus.
70 YASKAWA ELECTRIC SIEP C710606 16C YASKAWA AC Drive – V1000 Technical Manual