YASKAWA GA800 Technical Reference page 861

F6-16
[Gateway Mode]
Drive 0
*2
1 - 4
(Master Drive)
Drive 1
0
(Slave Drive)
Drive 2
0
(Slave Drive)
Drive 3
0
(Slave Drive)
Drive 4
0
(Slave Drive)
*1 Re-energize the drive to apply the new settings.
*2 Specify the number of slave drives you will connect.
*3 Setting 0 will not let the drive respond to MEMOBUS/Modbus communications.
*4 Set a slave address that is different from other slave devices.
*5 Enter the same value that you use for the master drive.
*6 To correctly detect the response timeout, do not change the value of H5-06 from the default value.
*7 Set H5-09 ≥ 0.9. When H5-09 < 0.9, the drive will detect CE [Modbus Communication Error] before it detects a response timeout.
*8 On each slave drive, set b1-01 [Frequency Reference Selection 1] and b1-02 [Run Command Selection 1] to 2 [Memobus/Modbus
Communications].
An Overview of Gateway Mode
When in gateway mode, the drive will operate as shown in
A - Controller
B - Communication option
Controller to Communication Option
• The controller and card communicate in the format of
each field bus communications protocol.
• Drive 0 sends commands and monitors through normal
field bus communications.
• The special registers of Drive 0 use read and write to
send commands to and monitor Drives 1 to 4.
Note:
Energize the slave drive before you energize the master drive. If you energize the master drive first, the drive detects CE [Modbus
Communication Error].
YASKAWA SIEPC71061737D GA800 Drive Technical Reference
Table 12.50 Sample Settings for Using Gateway Mode
H5-02
[Communication
H5-01
Speed Selection]
[Drive Node
H5-03
*1
Address]
[Communication
Parity Selection]
*5
1F (Default)
*3 *4 *5
01
*3 *4 *5
02
*3 *4 *5
03
*3 *4 *5
04
Table 12.51 Operation in Gateway Mode
Communication Option to Master Drive (Drive 0)
Field bus communication data is written to and read from
the special registers of Drive 0.
H5-06 H5-09
[Drive Transmit [CE Detection
Wait Time] Time]
*6 *7
5 ms (Default) ≥ 2.0 s
*6 *7
5 ms (Default) ≥ 0.9 s
*6 *7
5 ms (Default) ≥ 0.9 s
*6 *7
5 ms (Default) ≥ 0.9 s
*6 *7
5 ms (Default) ≥ 0.9 s
Table 12.51.
C - Master Drive (Drive 0)
D - Slave Drives (Drives 1 to 4)
Master Drive (Drive 0) to Slave Drives (Drives 1 to
• Uses MEMOBUS communications.
• Drive 0 sends data from its special registers to Drives 1
to 4.
12.7 F: Options
b1-01
b1-02
[Frequency
[Run Command
Reference
Selection 1]
Selection 1]
3 [Option PCB] 3 [Option PCB]
2 [Memobus/Modbus 2 [Memobus/Modbus
*8
Communications] Communications]
2 [Memobus/Modbus 2 [Memobus/Modbus
*8
Communications] Communications]
2 [Memobus/Modbus 2 [Memobus/Modbus
*8
Communications] Communications]
2 [Memobus/Modbus 2 [Memobus/Modbus
*8
Communications] Communications]
4)
861
*8
*8
*8
*8
12