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FUNCTION OVERVIEW
4.1.2
Input from master module to inverter
•
Operation command
Any of the following commands can be output from the master module to the inverter as an operation
command any time (Refer to pages 40, 42, 62.):
*1
These are factory-set signals. Input signals can be changed by input terminal function selection (Pr. 180 to Pr. 182).
Note that some signals do not accept a command from the master module according to the settings. Refer to page
for details.
•
Set frequency
The set frequency is written from the master module to the inverter when it is changed. (Refer to pages 42,
63.)
•
Parameter write
Functions can be written from the master module to the inverter. Note that write during inverter operation
will result in a mode error. (Refer to pages 38, 47.)
For the parameter data code list, refer to the inverter manual.
•
Inverter reset
You can reset the inverter or reset an inverter error. (Refer to pages 40, 54, 61.)
Terminal
Operation Command (Signal)
Terminal
Operation Command (Signal)
STF
Forward rotation command (STF)
STR
Reverse rotation command (STR)
RH
High speed operation command (RH) *1
RM
Middle speed operation command (RM) *1
RL
Low speed operation command (RL) *1
MRS
Output stop (MRS)
CAUTION
Input signals from the MRS terminal can be changed using Pr. 183. However, use the factory-set
signal to prevent malfunction.
