Hitachi SJ Series, User Manual

Page: 352 / 786

12-16-3
Chapter 12 Inverter Function
12.16.3 Making the inverter trip from an
external unit
• How to shut off the inverter's output when the
system produces an error
• This function is enabled by setting 033 [EXT] as
an input terminal function. When a signal
connected to the applicable terminal changes, an
error [E012] occurs.
• Use this function when you want to trip the inverter
via an error (trip) signal generated by a peripheral
system.
• When the inverter trips with error code [E12]
displayed, the trip is not reset even if the error
signal from the external equipment is reset (EXT
terminal is turned off). To reset the trip, perform
the reset operation or turn the power off and on
again.
• If you reset the inverter while the terminal [EXT] is
turned on, [E012] will occur again.
• After the reset, the inverter follows [bb-41] Restart
after reset. See "12.14.6 Starting after reset".
• When the terminal [EXT] is turned on, an error will
occur even if the inverter output is turned off, and
the inverter trips with [E012] displayed.
Item Parameter Data Description
Input terminal
function
[CA-01]~[CA-11]
033
[EXT]: When the terminal
corresponding to the assigned position
is turned on, an external trip occurs.
Q
A
!
Free-runnin
g
ON
ON
ON
Operation command
[FW]/[RV]
[EXT] terminal
Motor speed
[RS] terminal
Alarm output terminal