Hitachi SJ Series, User Manual

Page: 513 / 786

14-22
Chapter 14 RS485 Communication
14.5.2 EzCOM Settings
• Set a station number for [CF-02] to each inverter of
the EzCOM network, avoiding overlapping a station
number. While doing so, make sure to assign a
station number 01. The inverter with the station
number 01 will be the “controlling inverter”.
• Set the communication selection of controlling
inverter to EzCOM communication’s “controlling
inverter” [CF-09]=02. Set the communication
selection
of other inverters to EzCOM
communication [CF-09]=01.

Set-up destinations
ALL: Set to all inverters used for EzCOM.
A:
Set to only an inverter for controlling (station
number 01).
B: Set to inverters other than an inverter for
controlling (station number 01).
• Set the EzCOM communication start method
[CF-22] to the controlling inverter. If you selected
the input terminal start [CF-22]=00, assign 098
[485:EzCOM start] to any of input terminals 1 - 9, A
or B.
• To a master inverter, set the number of transmitting
data, the station number of transmission
destination, register of transmission destination,
and register of transmission source that are
required for the master inverter to write the data
(see the following table).
*1) When you provide multiple master inverters, set
consecutive station numbers (01, 02, 03, ...) to
them. If the numbers are not consecutive, the
inverters cannot perform communication.
*2) Note that the relationship between the master
start/end station number settings must be
[CF-
20] ≤ [CF-21].
Item Parameter Data Set-up
Destination
Description
Communication station number
selection *1) [CF-02] 1~247 ALL Station number setting
Communication error operation
selection [CF-06] 00 ALL Trip
01 ALL Trips after decelerating and stopping
02 ALL Ignore
03 ALL Free-run
04 ALL Deceleration stop
Communication timeout time [CF-07] 0.00 ALL Communication timeout disabled
0.01~100.00 ALL Unit [s]
Communication waiting time [CF-08] 0.~1000. ALL Unit [ms]
Communication selection [CF-09] 00
－
Modbus-RTU communication
01 B EzCOM communication
02 A EzCOM communication <controlling
inverter>
EzCOM master start station
number *2) [CF-20] 01~08 A Setting required for controlling inverter only.
EzCOM master end station
number *2) [CF-21] 01~08 A Setting required for controlling inverter only.
EzCOM start selection [CF-22] 00 A Start-up by input terminal
01 A Always communication
Input terminal 1 to 9, A or B
selection [CA-01]~[CA-11] 098 A [ECOM]: Starting up of EzCOM