11.7 F: Options
672 YASKAWA SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual
Note:
• The master drive stops transmitting to the slave drives when timeouts or message errors occur consecutively for 10 times. Input the
fault reset command to restart communication.
• If the access command is changed before the MEMOBUS/Modbus access completion flag turns on, the previous command may not be
executed.
Special Register Specifications
Table 11.24 Command Data
Register
No.
Description
1
Command source update (15C5H) This flag enables command updates.
bit 0 Drive 1 Update Command Enabled
To input both the Run command and frequency reference simultaneously, change the bit
value from 0 to 1 after all commands have been written.
bit 1 Drive 2 Update Command Enabled
bit 2 Drive 3 Update Command Enabled
bit 3 Drive 4 Update Command Enabled
bit 4 Update Register Access Command Enabled
bit 5 - F Reserved
2
Run Command (Drive 1) (15C6H)
bit 0
Forward run/Stop
1: Forward run, 0: Stop
bit 1
Reverse run/Stop
1: Reverse run, 0: Stop
bit 2 External Fault
bit 3 Fault Reset
bit 4 ComRef
bit 5 ComCtrl
bit 6 - F Reserved
3 Frequency Reference (Drive 1) (15C7H) The unit of measure varies depending on the setting of o1-03.
4 Run Command (Drive 2) (15C8H)
5 Frequency Reference (Drive 2) (15C9H)
6 Run Command (Drive 3) (15CAH)
7 Frequency Reference (Drive 3) (15CBH)
8 Run Command (Drive 4) (15CCH)
9 Frequency Reference (Drive 4) (15CDH)
10
Slave Address for Reg. Access + Read/Write (15CEH)
bit 0
bit 1
bit 2
bit 3
Slave address
0: Broadcast Messages (MEMOBUS)
1: Drive 1
2: Drive 2
3: Drive 3
4: Drive 4
5: Broadcast Messages (Run command and frequency
reference)
When bit 0 to 3 = 0, access is only enabled for broadcast messages.
When bit 0 to 3 = 5, access is enabled only for Run command and frequency reference
broadcast messages. Drive 0 is excluded.
bit 4 0: Read, 1: Write
bit 5 - F Reserved
11 Register number (15CFH)
12 Data (write register) (15D0H)