3.3 Running Mode
3-16
3.3.7 External run/frequency command
By factory default, run commands ( and keys) and frequency commands are sourced from the
keypad.
This section provides other external command source samples--an external potentiometer (variable
resistor) as a frequency command source and external run switches as run forward/reverse command
sources. Set up those external sources using the following procedure.
(1) Configure the function codes as listed below.
Table 3.3-8
Function
code
Name Data Factory
default
f 01
Frequency Command 1 1: Analog voltage input to terminal [12]
0
f 02
Operation Method
1: External signals (Digital input
terminal commands)
2
e 98
Terminal [FWD] function 98: Run forward command FWD
98
e 99
Terminal [REV] function 99: Run reverse command REV
99
If terminal [FWD] and [REV] are ON (short-circuited), the F02 data cannot be changed. First turn
those terminals OFF and then change the F02 data.
(2) Wire the potentiometer to terminals across [13], [12], and [11].
(3) Connect the run forward switch between terminals [FWD] and [CM] and the run reverse switch
between [REV] and [CM].
(4) To start running the inverter, rotate the potentiometer to give a voltage to terminal [12] and then turn
the run forward or reverse switch ON (short-circuit).
For precautions in wiring, refer to the Chapter 2.
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