YASKAWA GA500 GA50U Series

2.7 F: Options
266 YASKAWA TOEPYAIGA5002A GA500 DRIVE PROGRAMMING
■ Gateway Mode
Note:
When you use Gateway Mode, do not install the communication option in slave drives. If you install a communication option in a slave
drive, the drive commands and responses will not synchronize.
In gateway mode, you can use one communication option to communicate with more than one drive.
You can use one communication option to connect a maximum of five drives to the field bus communications. Refer
to Figure 2.55 for more information.
When you install a communication option on the master drive, you can use the RS-485 communication terminals to
transmit data to slave drives that do not have a communication option.
Figure 2.55 Connection Examples in Gateway Mode
Table 2.40 Specification
Item Specification
Applicable options All options that support the MEMOBUS access function (for example, PROFIBUS-DP, PROFINET, EtherNet/IP, EtherCAT)
Compatible Products Drives that can set F6-16 [Gateway Mode]
*1
Number of connected drives Maximum: 5 units
Communication specifications MEMOBUS/Modbus (RTUmode) communications
Commands/responses The controller can send this data to each drive (Drive 0 to Drive 4):
• Control commands: Run commands and frequency references
• Control responses: Output frequency and drive status (during run, faults)
• Read and write parameters
• Read monitors
Synchronous control Not supported
*1 Gateway Mode is not available with Yaskawa 1000-series drives or previous series drives.
Note:
• The communication speed in gateway mode is slower than the speed in fieldbus communications. Make sure that the speed is acceptable for
your system.
• Response speed with the communication option is slower than with point-to-point communications.
• Set H5-03 [Communication Parity Selection] to the same value on the master drive and slave drives.
WARNING! Injury to Personnel. Separately prepare safety protection equipment and systems, for example fast stop switches. If the
motor does not stop correctly from the disconnection of communications cable or electrical interference, it can cause serious injury.
Setting Gateway Mode
Table 2.41shows sample settings to connect 4 slave drives:
Table 2.41 Sample Settings for Using Gateway Mode
F6-16
[Gateway Mode]
H5-01
[Drive Node
Address]
*1
H5-02
[Communication
Speed Selection]
H5-03
[Communication
Parity Selection]
H5-06
[Drive Transmit
Wait Time]
H5-09
[CE Detection
Time]
b1-01
[Frequency
Reference
Selection 1]
b1-02
[Run Command
Selection 1]
Drive 0
(Master Drive)
1 - 4
*2
1F (Default)
*5
5 ms (Default)
*6
≥ 2.0 s
*7
3 [Option PCB] 3 [Option PCB]
Drive 1
(Slave Drive)
0 01
*3 *4 *5
5 ms (Default)
*6
≥ 0.9 s
*7
2 [Memobus/Modbus
Communications]
*8
2 [Memobus/Modbus
Communications]
*8