Fuji Electric FRENIC-AQUA series, User Manual

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5.5.5 Changing from keypad operation to external signal (terminal
block) operation
By factory default, both the run commands ( / / key) 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.
Function
code
Name Data
Factory
default
F01 Frequency command 1 1: Analog voltage input to terminal [12] 0
F02 Operation method 1: External digital input signal 0
E98 Terminal [FWD] function 98: Run forward command FWD 98
E99 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 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 "SPECIFICATIONS."
5.5.6 Monitoring light alarms
The FRENIC-AQUA identifies abnormal states in two categories--Heavy alarm and Light alarm. If
the former occurs, the inverter immediately trips; if the latter occurs, the inverter shows the L-AL on
the LCD monitor and flashes the WARN. LED but it continues to run without tripping.
Which abnormal states are categorized as a light alarm ("Light alarm" object) should be defined with
function codes H181 to H184 beforehand.
Assigning the LALM signal to any one of the digital output signals with any of function codes E20 to
E24 and E27 (data = 98) enables the inverter to output the LALM signal on that terminal upon
occurrence of a light alarm.
For details of the light alarm objects, refer to Chapter 9, Section 9.3.1 "Alarm Codes."
„ How to reset a light alarm
If the light alarm factor has been removed, pressing the
key stops flashing of the WARN. LED and
turns LALM signal OFF. If not, pressing the key turns the WARN. LED ON and then the LED
automatically goes OFF the moment the light alarm factor is removed.
„ How to check a light alarm factor
If a light alarm occurs, an alarm code appears on the LCD monitor. To check the current light alarm
factor, enter Programming mode by pressing the key and select "2. Light Alarm History" of "4.
Alarm Info." It is possible to check the factors of the last five light alarms.