6.6 High-Speed Serial Communication-Capable Terminal Block
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Chap. 6
CONTROL OPTIONS
<Supplementary Explanation for Connection Diagram>
1) For safety, when alarm is activated (30X actuated) input free run command [BX] to the three inverter
units.
This input should be constructed by hardware circuit for safety.
2) Configure the three inverters such that after operation preparation is complete [RDY], FWD and REV
can be turned ON.
3) The alarm of slave inverters can be released by the reset command [RST] of the master inverter.
4) When installing into facilities which restart after instantaneous power failures, use the running restart
function which searches the direction and speed of free running rotation and picks up smoothly to
reengage drive.
5) The operation with reduced number of units from 3 units to 2 units, without change in wiring, will be
supported soon.
The current method requires changing the optical fiber cable connections and modifying the function
code settings to realize the configuration for Direct Parallel Connection System using two units.
Additionally, operation with reduced number of units from 3 units to 1 unit is possible. Refer to
"6.6.11" for information.
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