Parameter Details
12
12.6 F: OPTIONS
SIEPCYEUOQ2V01A Q2V Technical Manual 549
Table 12.34 Operation in Gateway Mode
Controller to Communication Option Communication Option to Master Drive (Drive 0)
Master Drive (Drive 0) to Slave Drives (Drives 1 to
4)
• 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.
Field bus communication data is written to and read from
the special registers of Drive 0.
• Uses Modbus communications.
• Drive 0 sends data from its special registers to Drives
1 to 4.
Operations at the Time of Communication Error
Communication Error
Error
Codes
Operation
From controller to
communication option
bUS
• Master drive
Detects bUS [Option Communication Error] and operates as specified by F6-01 [Comm.Error Selection].
• Slave drive
Detects CE [Modbus Communication Error] and operates as specified by H5-04 [Mbus Error Stop].
Note:
• After error detection, each drive can continue the operation specified by the last received command if the F6-01 and H5-04 settings
agree. Because the controller cannot stop the operation, you must supply a stopping method, for example an emergency stop
switch.
• If you set H5-05 = 0 [Mbus Fault Detection Selection = Disabled], the drive will not detect CE. The H5-04 setting does not have
an effect.
From communication
option to master drive
oFAxx
• Master drive
Detects oFAxx and coasts to stop.
• Slave drive
Detects hLCE [High Level Communication Errors] and coasts to stop.
From master drive to
slave drive
CE
The master drive stops communicating with the slave drive in these conditions: Reset the fault to restart communication.
The slave drive detects CE after H5-09 [Mbus CE Detect Time] is expired. Then it operates in as specified with H5-04 [Mbus Error
Stop].
• A message error occurred in the send data from the slave drive 10 consecutive times.
• Response from the slave drive timed out 10 consecutive times.
Gateway Special Register Specification
Table 12.35 Command Data
Register
No. (Hex.)
Description
15C5
Command source update This flag enables command updates.
bit 0 Drive 1 Update Command Enabled
To input the Run command and frequency reference at the same time, write all
commands, then change the bit value from 0 to 1.
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
15C6
Run Command (Drive 1)
bit 0
H5-12 = 0: FWD/Stop
0 = Stop
1 = Forward run
H5-12 = 1: Run/Stop
0 = Stop
1 = Run
bit 1
H5-12 = 0: REV/Stop
0 = Stop
1 = Reverse run
H5-12 = 1: FWD/REV
0 = Forward run
1 = Reverse run
bit 2 External fault
bit 3 Fault Reset
bit 4 ComRef
bit 5 ComCtrl
bit 6 - F Reserved
15C7 Frequency Reference (Drive 1) The unit of measure changes when o1-03 changes.
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