Fuji Electric FRENIC-HVAC User Manual page 20

● Customizable logic
The customizable logic interface function is provided to the inverter body. This enables forming
of logic circuit and arithmetic circuit to the digital and analog input and output signals, allowing
simple relay sequence to be built while processing the signals freely.
Example: Digital (AND + on-delay timer)
Step 1
Item
Logic function <Digital>
<Analog>
General-purpose On-delay, off-delay, pulse train, etc.
timer Time setting: 0.0–600s
Input/output signal Terminal input/output, inverter control function
Others Can comprise up to 14 steps, with each step input/output occurring in
combination
You can check the input/output status of the various steps by the keypad
having the LCD monitor.
< LCD monitor example >
* Numerical values of the screen display are not the same as in actual circumstances.
Digital + digital + timer
(AND circuit + on-delay timer)
Fref 0.00Hz
PRG>6>4
Step01:0021
RESET:Back to M
Digital + digital + counter
(Up counter)
Fref 0.00Hz
PRG>6>4
Step01:0110
RESET:Back to M
Step 2
AND, OR, XOR, flip-flop, rise/fall detection, counter, etc.
Addition, subtraction, multiplication, limiter, absolute value, inverted
addition, comparison, max. value selection, min. value selection, avg.,
scale conversion
Analog + analog + limiter
(Multiplication circuit + vertical limiter)
Fref
PRG>6>4
Step01:2003
RESET:Back to M
Function code + scale conversion
Fref
PRG>6>4
Step01:2151
RESET:Back to M
1-4
Example: Analog (subtraction + comparison 5)
U04
+
12 pin
- U05
C1 pin
Content
Analog + analog + comparison
(Deviation comparison 2)
0.00Hz Fref
PRG>6>4
Step01:2052
RESET:Back to M
Analog + 1 input + conversion
0.00Hz Fref
PRG>6>4
Step01:3001
RESET:Back to M
Step 2
Y3 pin
output
U09
0.00Hz
(Conversion 1)
0.00Hz