Fuji Electric FRENIC-MEGA, Инструкция по эксплуатации

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4-20
Ch
ap. 4
RUNNING TH
E
MOT
O
R
The paths of transition between remote and local modes depend on the current mode and the value (ON/OFF) of
LOC
, the signal
giving precedence to the commands from the keypad, as shown in the state transition diagram shown in Figure 4.4.
For further details on how to set run commands and frequency commands in remote and local modes, refer to the drive
command related section in the User's Manual, "BLOCK DIAGRAMS FOR CONTROL LOGIC."
Figure 4.4 Transition between Remote and Local Modes
4.2.3 External run/frequency command
By factory default, run and frequency commands are sourced from the keypad. This section provides other external command
source samples--an external frequency command 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.
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 digital input signal
0
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, the F02 data cannot be changed. First turn those terminals OFF and then change
the F02 data.
(2) Wire the external frequency command 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 Chapter 2 "MOUNTING AND WIRING THE INVERTER."