YASKAWA L1000A - Page 449

C.4 MEMOBUS/Modbus Setup Parameters
YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual 449
MEMOBUS/Modbus Communications
C
■ H5-04: Stopping Method after Communication Error
Selects the stopping method after a communications error (CE) has occurred.
Setting 0: Ramp to stop (uses the deceleration ramp currently enabled)
Setting 1: Coast to stop
Setting 2: Fast Stop
Setting 3: Alarm only (continue operation)
■ 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 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.
Figure C.6
Figure C.6 Drive Transmit Wait Time Setting
■ H5-07: RTS Control Selection
Enables or disables RTS control.
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.
No. Parameter Name Setting Range Default
H5-04 Stopping Method after Communication Error 0 to 3 3
No. Parameter Name Setting Range Default
H5-05 Communication Fault Detection Selection 0 or 1 1
No. Parameter Name Setting Range Default
H5-06 Drive Transmit Wait Time 5 to 65 ms 5 ms
No. Parameter Name Setting Range Default
H5-07 RTS Control Selection 0 or 1 1
Command message Response message Command message
PLC→Drive PLC→DriveDrive→PLC
Time
24 bit length
H5-06 setting
common_
TMonly
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