Reset Inverter - Hitachi L100 Instruction Manual

4–16
Using Intelligent Input Terminals

Reset Inverter

The [RS] terminal causes the inverter to
execute the reset operation. If the inverter is
in Trip Mode, the reset cancels the Trip state.
When the switch between the set terminals
[RS] and [P24] is turned on and off, the
inverter executes the reset operation. The
input timing requirement for [RST] needs a
12 ms pulse width or greater. The alarm output will be cleared within 30 ms after the
onset of the Reset command.
WARNING: After the Reset command is given and the alarm reset occurs, the motor
will restart suddenly if the Run command is already active. Be sure to set the alarm reset
after verifying that the Run command is off to prevent injury to personnel.
Option
Code
18
Valid for inputs:
Required settings:
Notes:
•
When the control terminal [RS] input is already On
at powerup for more than 4 seconds, the remote
operator display is "R-ERROR COMM<2>" (the
display of the digital operator [OPE-J] is – – –.
However, the inverter has no error. To clear the
digital operator error, turn off the terminal [RS]
input and press one of the operator keys.
•
When the [RS] terminal is turned off from on, the Reset command is active.
•
The Stop/Reset key of the digital operator is valid only when an alarm occurs.
•
Only the normally open contact can be set for a terminal configured with the [RS] function. The
terminal cannot be used in the normally closed contact state.
•
Even when power is turned off or on, the function of the terminal is the same as that of the reset
terminal.
•
The Stop/Reset key on the inverter is only operational for a few seconds after inverter powerup when a
hand-held remote operator is connected to the inverter.
•
If the [RS] terminal is turned on while the motor is running, the motor will be free running (coasting).
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Terminal
Function Name
Symbol
RS Reset Inverter
C01, C02, C03, C04, C05
(none)
[RS] terminal
Alarm output
Input
Description
State
ON The motor output is turned off, the Trip Mode is
cleared (if it exists), and powerup reset is applied
OFF Normal power-on operation
Example:
L 5
See I/O specs on page 4–5.
12 ms minimum
approx. 30 ms
time
RS
P24
4 3 2 1