C.4 MEMOBUS/Modbus Setup Parameters
■ H5-05: Communication Fault Detection Selection
Enables or disabled the communication error (CE) detection for MEMOBUS/Modbus communications.
No.
Name
Setting Range
Default
H5-05
Communication Fault Detection Selection
0 or 1
1
Setting 0: Disabled
No communication error detection. The drive continues operation.
Setting 1: Enabled
If the drive does not receive data from the master for longer than the time set to H5-09, then a CE fault will be triggered
and the drive will operate as determined by parameter H5-04.
■ H5-06: Drive Transmit Wait Time
Sets the time the drive waits after receiving data from a master before responding.
No.
Name
Setting Range
Default
H5-06
Drive Transmit Wait Time
5 to 65 ms
5 ms
PLC^Drive
Drive^PLC
PLC^Drive
---------- ►
Command message
Response message
Command message
Time
t t
24 bit length H5-06 setting
F ig u r e C .5 D riv e T r a n s m it W a it T im e S e ttin g
■ H5-07: RTS Control Selection
Enables or disables RTS control.
No.
Name
Setting Range
Default
H 5-07
RTS Control Selection
0 or 1
1
Setting 0: Disabled. RTS is always on.
Use this setting when using RS-485 signals for communications or when using RS-422 signals for point-to-point
communications.
Setting 1: Enabled. RTS switches while sending.
Use this setting when using RS-422 signals for multi-drop communications.
■ H5-09: Communication Fault Detection Time
Sets the time the communications must be lost before the drive triggers a CE fault.
No.
Name
Setting Range
Default
H5-09
Communication Fault Detection Time
0.0 to 10.0 s
2.0 s
■ H5-10: Unit Selection for MEMOBUS/Modbus Register 0025H
Sets the unit for the output voltage monitor value in MEMOBUS/Modbus register 0025H.
No.
Name
Setting Range
Default
H5-10
Unit Selection for M EM OBUS/M odbus Register 0025H
0 or 1
0
Setting 0: 0.1 V units
Setting 1: 1 V units
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YASKAWA ELECTRIC SIEP C710616 33D YASKAWA AC Drive L1000A Technical Manual
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