YASKAWA GA700 Series

Parameter Details
12
12.7 F: Options
YASKAWA SIEPC71061705H GA700 Series Technical Manual 779
Item Specification
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
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 H5-02 [Communication Speed Selection] and 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 12.55shows sample settings to connect 4 slave drives:
Table 12.55 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
Drive 2
(Slave Drive)
0 02
*3 *4 *5
5 ms (Default)
*6
≥ 0.9 s
*7
2 [Memobus/
Modbus
Communications]
*8
2 [Memobus/
Modbus
Communications]
*8
Drive 3
(Slave Drive)
0 03
*3 *4 *5
5 ms (Default)
*6
≥ 0.9 s
*7
2 [Memobus/
Modbus
Communications]
*8
2 [Memobus/
Modbus
Communications]
*8
Drive 4
(Slave Drive)
0 04
*3 *4 *5
5 ms (Default)
*6
≥ 0.9 s
*7
2 [Memobus/
Modbus
Communications]
*8
2 [Memobus/
Modbus
Communications]
*8
*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 Table 12.56.
A - Controller
B - Communication option
C - Master Drive (Drive 0)
D - Slave Drives (Drives 1 to 4)