Toshiba G7 Series Applications Workbook page 50

The Multi Drop option uses a single RS485 (RS485 Cable 1) Cross-over cable between the
master drive and the first follower and then a straight through cable (RS485 Cable 2) to each
subsequent follower. Please note: do not make these connections while either the master or
follower drive is powered.
Programming
Parameter
Master RS485/232 Master Output Selection
Frequency Mode #1
Follower
Frequency Point Selection
*Caution: Both the RS485 port (CNU1) and the TTL port (CNU2) on the G7 control board may be
programmed to output. Programming both ports to output at the same time will effectively lock out
keypad control and programming.
**No Slave - Port remains an input port
Frequency Reference - Port outputs the master's present frequency reference, regardless of
whether the master is running or not.
Output Command Frequency - Port outputs the master's present operating frequency. If the
master is not running all followers will be stopped
Torque Command - Port outputs the master's present torque reference, regardless of whether
the master is running or not.
Output Torque Command - Port outputs the master's present operating frequency. If the master
is not running all followers will be stopped
Note: Power must be cycled on the drive for any change in F825 or F826 to take effect
Note: faulting the master drive will prevent the port from outputting a signal
A note on Command Mode Selection: Both the master and follower drive may make use of any
Command Mode Selection except "Use RS485/232".
2.) Daisy Chain Option
In daisy chaining, each drive receives an input into either its TTL or RS232/485 port and then
outputs a command from the opposite port. This requirement means that drives other than the
primary master and the last follower in the series will be unable to utilize their keypads.
Cabling
RS485 Cable 1
For additional assistance, please contact Toshiba Adjustable Speed Drive Marketing Dept. at (800) 872-2192
efesotomasyon.com -Toshiba inverter,drive,servo,plc
TTL Cable 1
Location/Direct Access
*
F826
F004
F810
RS485 Cable 1
New Value
**
Use RS485/232
Use RS232/485
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