External Trip - Hitachi X200-002SFE/NFU Instruction Manuals

External Trip

When the terminal [EXT] is turned ON, the inverter enters the trip state, indicates
error code E12, and stops the output. This is a general purpose interrupt type feature,
and the meaning of the error depends on what you connect to the [EXT] terminal. Even
if the [EXT] input is turned OFF, the inverter remains in the trip state. You must reset
the inverter or cycle power to clear the error, returning the inverter to the Stop Mode.
In the graph below, the [EXT] input turns ON during normal Run Mode operation. The
inverter lets the motor free-run to a stop, and the alarm output turns ON immediately.
When the operator initiates a Reset command, the alarm and error are cleared. When
the Reset is turned OFF, the motor begins rotation since the Run command is already
active.
Option
Code
12
Valid for inputs:
Required settings
Notes:
• If the USP (Unattended Start Protection)
feature is in use, the inverter will not
automatically restart after canceling the EXT
trip event. In that case, it must receive either
another Run command (OFF-to- ON transition),
a keypad Reset command, or an [RS] intelligent
terminal input signal.
More user manuals on
[EXT] terminal
Motor revolution speed
[RS] terminal
Alarm output terminal
Run command [FW,RV]
Terminal
Function Name
Symbol
EXT External Trip
C001~C005
(none)
ManualsBase.com
1
0
Free run
1
0
1
0
1
0
State
ON When assigned input transitions OFF to ON,
inverter latches trip event and displays E12.
OFF No trip event for ON to OFF, any recorded trip
events remain in history until Reset.
Example (requires input configuration—
see page 3–49):
See I/O specs on
t
Description
EXT
L PCS P24
5 4 3 2 1
page 4–6.
4−19