Hitachi SJ Series, User Manual

Page: 190 / 786

12-5-3
Chapter 12
Inverter Functions
12.5.3 Operation with forward/reverse
rotation terminal
• Want to make operation with input to the terminal
of the inverter.
• Want to switch forward and reverse rotation by
making the terminal ON/OFF.
• A forward rotation command can be given from
[FW] terminal and a reverse one from [RV]
terminal.
• Operation can be started/stopped by making the
[FW] or [RV] terminal function ON/OFF on the
control circuit terminal block of the inverter.
• In the factory setting, the [FW] and [RV] terminals
are assigned to the terminal Nos. 9 and 8,
respectively. This assignment can be changed by
setting [CA-01]-[CA-11] in the input terminal setting
selection.
• a/b contact of each terminal can be switched by
changing the corresponding setting item of
[CA-21]-[CA-31].
Parameters
• The output of the inverter requires not only an
operation command but also a frequency
command.
• The input terminal function 023 [F-OP] is enabled,
the command destination specified in the [F-OP]
function becomes effective irrespective of the
present setting.
• Simultaneous input of a forward and reverse
rotation commands is equivalent to stop command.
• The relation between [FW] and [RV] terminals is
given below.
FW
terminal
RV terminal
Operation
command.
OFF OFF
Stop
command
ON OFF
Forward
rotation
command.
OFF ON
Reverse
rotation
command.
ON ON
Stop
command
• Commands can be given by [FW]/[RV] command
of the EzSQ function.
Item Parameters Data Description
Operation command
selection
[AA111] 00
Run/Stop from the control circuit
terminal block.
([FW], [RV] terminals)
Input terminal function
selection
[CA-01]~[CA-11]
01 [FW] terminal function
02 [RV] terminal function
Input terminal
a/b (NO/NC) selection
[CA-21]~[CA-31]
00 a contact (NO)
01 b contact (NC)
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