Fuji Electric FRENIC-AQUA series, User Manual

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6.3 Details of Function Codes
6-327
Chap. 6
FUNCTION C
ODES
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Notes for using a customizable logic
The customizable logic is calculated for every 5 ms and processed in the following procedure.
(1) At the start of processing, latch the external input signals to all customizable logics in
steps 1 to 14 to ensure concurrency.
(2) Execute the logic calculations from steps 1 to 14.
(3) If an output of a particular step applies to an input at the next step, the output of the step
having processing priority can be used in the same processing.
(4) The customizable logic updates 7 output signals at a time.
When configuring a logic circuit, take into account the processing order of the customizable
logic. Otherwise, a delay in processing of logical operation leads to a signal delay problem,
resulting in no expected output, slow processing, or a hazard signal issued.
Ensure safety before modifying customizable logic related function code settings (U codes and
related function codes) or turning ON the "Cancel customizable logic" terminal command
CLC . Depending upon the settings, such modification or cancellation of the customizable logic
may change the operation sequence to cause a sudden motor start or an unexpected motor
operation.
An accident or injuries could occur.
„
Customizable logic timer monitor (step selection) (U91, X89 to X93)
The monitor function code can be used to monitor the input/output state in the customizable
logics and timer operation status.
Selecting a timer to be monitored
Function code Function Remarks
U91 0: Disable monitoring (Monitor data is set to 0.)
1 to 14: Specify the step number to be monitored.
Turning the power off
zero-clears the setting
value.
Monitoring
Monitored by:
Related function code and
LCD monitor display
Monitor item
Communications
link
X89 customizable logic (Digital
input/output)
Digital I/O data of the step
specified with U91
(monitor-specific)
X90 Customizable logic (Timer monitor) Timer/counter value specified
with U91 (monitor-specific)
X91 customizable logic (Analog input 1) Analog input 1 data of the step
specified with U91
(monitor-specific)
X92 customizable logic (Analog input 2) Analog input 2 data of the step
specified with U91
(monitor-specific)
X93 customizable logic (Analog output) Analog output data of the step
specified with U91
(monitor-specific)