SJ700-2 Instruction Manual NT204DX - Hitachi America, Ltd.
SJ700-2 Instruction Manual NT204DX - Hitachi America, Ltd.
SJ700-2 Instruction Manual NT204DX - Hitachi America, Ltd.
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Chapter 4 Explanation of Functions<br />
4.2.52 External trip (EXT) function<br />
The external trip function allows you to make the inverter trip<br />
according to the error (trip) signal generated by an external system.<br />
To use this function, assign function "12" (EXT) to one of the terminal [1] to [8] functions (C001 to C008).<br />
When the EXT terminal is turned on, the inverter trips with error code "E12" displayed and stops the<br />
output.<br />
After the inverter trips with error code "E12" displayed, it will not be recovered from tripping, even when the<br />
error signal from the external system is reset (i.e., the EXT terminal is turned off).<br />
To recover the inverter from tripping, reset the inverter or turn the inverter power off and on.<br />
Item Function code Data Description<br />
Terminal [1] to [8] functions C001 to C008 12 EXT: External trip<br />
Note: Do not turn on the EXT terminal after the inverter power is shut off. Otherwise, the error history may<br />
not be stored correctly.<br />
Operation commands<br />
FW and RV<br />
Related code<br />
C001 to C008: Terminal [1] to [8] functions<br />
EXT terminal<br />
Motor speed<br />
Free running<br />
RS terminal<br />
Alarm output terminal<br />
4.2.53 3-wire interface operation function (STA, STP, and F/R)<br />
Related code<br />
The 3-wire interface operation function allows you to use automatic- C001 to C008: Terminal [1] to [8] functions<br />
reset contacts (e.g., pushbutton switches) to start and stop the inverter.<br />
Specify "01" (control circuit terminal block) for the run command source setting (A002).<br />
Assign function "20" (STA), "21" (STP), and "22" (F/R) to three of the terminal [1] to [8] functions (C001 to<br />
C008) to enable the control operations described below. Assigning the STP function to an intelligent input<br />
terminal disables the functions of the FW and RV terminals.<br />
The figure below shows the inverter outputs according to terminal operations.<br />
Item Function code Data Description<br />
20 STA: Starting the motor<br />
21 STP: Stopping the motor<br />
Terminal [1] to [8] functions C001 to C008<br />
F/R: Switching the motor operation<br />
22<br />
direction<br />
STA<br />
ON<br />
OFF<br />
STP<br />
ON<br />
OFF<br />
F/R<br />
Output frequency<br />
Forward<br />
rotation<br />
Reverse<br />
rotation<br />
4 - 58
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