5-48
Reset alarm -- (RST)
(Function code data = 8)
Turning this terminal command ON clears the (ALM) state--alarm output (for any fault). Turning it
OFF erases the alarm display and clears the alarm hold state.
When you turn the (RST) command ON, keep it ON for 10 ms or more. This command should be
kept OFF for the normal inverter operation.
Enable external alarm trip -- (THR)
(Function code data = 9)
Turning this terminal command OFF immediately shuts down the inverter output (so that the
motor coasts to stop), displays the alarm
0h2
, and outputs the alarm relay (for any fault) (ALM).
The (THR) is self-held, and is reset when an alarm reset takes place.
Use a trip command from external equipment when you have to immediately shut down
the inverter output in the event of an abnormal situation in peripheral equipment.
Switch frequency command 2/1 -- (Hz2/Hz1)
(Function code data = 11)
Turning this digital input signal ON and OFF switches the frequency command source between
frequency command 1 (Hz1: F01) and frequency command 2 (Hz2: C30).
If nothing is assigned to this terminal command, the frequency specified by F01 takes effect by
default.
Frequency command
(Hz2/Hz1)
Frequency command source
OFF Follow F01 (Frequency command 1)
ON Follow C30 (Frequency command 2)
Enable DC brake -- (DCBRK)
(Function code data = 13)
Turing this terminal command ON activates the DC braking. As long as this command remains
ON, the DC braking is working regardless of the braking time specified by F22. Furthermore,
turning this command ON even when the inverter is in a stopped state activates DC braking. This
feature allows the motor to be excited before starting, resulting in smoother acceleration (quicker
build-up of acceleration torque).
For details, refer to the description of F20 to F22.
To Next Page
Loading...
