C.4 MEMOBUS/Modbus Setup Parameters
YASKAWA ELECTRIC TOEP C710687 02B FSDrive-MV1000 Instructions 229
MEMOBUS/Modbus
Communications
C
n H5-05: Communication Fault Detection Selection
Enables or disabled the communication error (CE) detection for MEMOBUS/Modbus communications.
Setting 0: Disabled
No communication error detection. The drive continues operation.
Setting 1: Enabled
If communication is lost for more than the time set in H5-09, then a CE fault will be triggered and the drive will operate
as determined by parameter H5-04.
n
H5-06: Drive Transmit Wait Time
Sets the time the drive waits after receiving data from a master until responding data.
Figure C.4
Figure C.4 Drive Transmit Wait Time Setting
n H5-07: RTS Control Selection
Enables or disables RTS control.
Setting 0: Disabled. RTS is always on.
Setting 1: Enabled. RTS switches while sending.
Use this setting when using RS-485 signals for communications.
n
H5-09: CE Detection Time
Sets the time the communications must be lost before the drive triggers a CE fault. Adjustment may be needed when
networking several drives.
No. Name Setting Range Default
H5-05 Communication Fault Detection Selection 0 or 1 1
No. Name Setting Range Default
H5-06 Drive Transmit Wait Time 5 to 65 ms 5 ms
No. Name Setting Range Default
H5-07 RTS Control Selection 0 or 1 1
No. Name Setting Range Default
H5-09 CE Detection Time 0.0 to 10.0 s 2.0 s
Command message Response message Command message
Master→Drive Master→DriveDrive→Master
Time
24 bit length
H5-06 setting
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