Fuji Electric FRENIC-Ace series - Page 296

5.3 Description of Function Codes
5-126
■ Braking transistor broken – “DBAL” (Function code data = 105)
If the inverter detects a breakdown of the braking transistor, it displays the braking transistor alarm (
dba ) and also
issues the output signal “DBAL”. Detection of the breakdown of a braking transistor can be canceled by H98.
(FRN0072E2-4 or below, FRN0115E2-2 or below, FRN0012E2-7 or below) ( Function code H98)
A breakdown of the braking transistor could lead to a damage of the braking resistor or inverter’s internal
units. To prevent the secondary damage, use
“DBAL”
to cut off power to the magnetic contactor in
inverter primary
circuits upon detection of a breakdown of the built-in braking transistor.
■ Customizable logic output signal 1 to 10 – “CLO1” to “CLO10” (Function code data =111 to 120)
Outputs the result of customizable logic operation. ( Function codes U codes)
E29
E30
Frequency arrival delay timer (FAR2)
Frequency arrival detection width (Detection width)
E30 specifies the detection level for the Frequency (speed) arrival signal “FAR”, Frequency (speed) arrival signal 2
“FAR2” and the Frequency (speed) arrival signal 3 “FAR3”.
Output signal
E20, E21, E27
assigned data
Operating condition 1 Operating condition 2
“FAR” 1
The signals come ON when the
difference between the output
frequency (estimated/actual speed)
and the reference frequency
(reference speed) comes within the
frequency arrival width specified by
E30.
FAR always goes OFF when the run
command is OFF or the reference
speed is “0.”
“FAR3” 72
When the run command is OFF, the
inverter regards the reference speed
as “0,” so FAR3 comes ON as long
as the output frequency (estimated/
actual speed) is within the range of
“0 ± the frequency arrival width
specified by E30.”
“FAR2” 21
The signal comes ON when the
difference between the output
frequency (before torque and current
limiting) and the reference frequency
(reference speed) comes within the
frequency arrival width specified by
E30.
This signal always goes OFF when
the run command is OFF or the
reference speed is “0.”
The delay can be specified by E29.