C.2 MEMOBUS/Modbus Parameters
u
MEMOBUS/Modbus Parameters
n
H5-01: Drive Node Address
This parameter tells the PLC what the node address is for the individual drive.
No. Name Description Setting Range Default
MEMOBUS/Modbus
Address
H5-01 Drive Node Address
Selects drive station node number (address) for MEMOBUS/Modbus terminals R+, R-, S
+, S-.
Cycle power for the setting to take effect.
0 to 20 H* 1F 425H
*If the address is set to 0, no response will be provided during communications.
For serial communciations to work, each individual slave drive must be assigned a unique node address. Setting H5-01 to any value besides 0 assigns the
drive its address in the network. Slave address don't need to be assigned in sequential order, but each address needs to be unique so that no two drives
have the same address. The power to the drive needs to be cycled after setting the address for the node address to take affect.
n
H5-02: Communication Speed Selection
n
H5-03: Communication Parity Selection
These parameters set the communication speed and the parity.
No. Name Description Setting Range Default
MEMOBUS/Modbus
Address
H5-02 Communication Speed Selection
Selects the baud rate for MEMOBUS/Modbus terminals R+, R-, S+ and S-.
Cycle power for the setting to take effect.
0 : 1200 bps
1 : 2400 bps
2 : 4800 bps
3 : 9600 bps
4 : 19200 bps
5 : 38400 bps
6 : 57600 bps
7 : 76800 bps
8 : 115200 bps
0 to 8 3 426H
H5-03 Communication Parity Selection
Selects the communication parity for MEMOBUS/Modbus terminals R+, R-, S+
and S-.
Cycle power for the setting to take effect.
0: No parity
1: Even parity
2: Odd parity
0 to 2 0 427H
Detailed Description
Parameters H5-02 and H5-03 should be set according to the network specifications run by the master controller. Because the power to the drive needs to
be cycled in order for these parameter settings to take affect, the application will have to be stopped to change these settings.
n
H5-04: Stopping Method After Communication Error
Tells the drive how it should stop the motor when a communication error occurs.
No. Name Description Setting Range Default
MEMOBUS/Modbus
Address
H5-04
Stopping Method After
Communication Error
0: Ramp to stop (decelerates according to C1-02)
1: Coast to stop2: Fast-Stop3: Alarm only
0 to 3 3 428H
n
H5-05: Communication Fault Detection Selection
Enables or disables the communications time-out fault (CE).
No. Name Description Setting Range Default
MEMOBUS/Modbus
Address
H5-05
Communication Fault Detection
Selection
0: Disabled - A communication loss will not cause a communication fault.
1: Enabled - If communication is lost for more than two seconds, a CE fault will
occur.
0, 1 1 429H
If H5-05 is set to 1, a fault will occur if the master controller does not receive a response from the drive after two seconds. The power to the drive needs
to be cycled for the setting in H5-05 to take affect.
n
H5-06: Drive Transmit Wait Time
Sets how long the drive should wait to send a response after it receives data.
No. Name Description
Setting
Range
Default
MEMOBUS/Modbus
Address
H5-06 Drive Transmit Wait Time Set the delay time from when the drive receives data to when the drive sends data. 5 to 65 5 ms 42AH
Drive power needs to be cycled for the setting in H5-06 to take effect.
C.2 MEMOBUS/Modbus Parameters
332
YASKAWA ELECTRIC SIEP C710606 18A YASKAWA AC Drive – V1000 Technical Manual (Preliminary)
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