1
2
3 4
5
6
7
9
8
0
F1 /F3
F2 /F4
SH/FT
ON
kg
Trouble
occurs
Error signal
System
automatically
stops
Error Occurs
Falling
down
Detection
switches
Safety Check Function (Error Alarm Signal Output)
Trouble
Weighing
hopper
Signal output for
full, medium and
dribble flows.
Install up to 8 emergency overrides
They can be aligned with any connector on the
Control I/O and OP-05.
Kinds of output signals
• Weighing sequence error
• Zero error
• Alarm 1
• Alarm 2
Here is why we recommend our
AD-4402 Multi-Function Weighing Indicator
for your weighing system.
★
Sequential weighing mode
The sequential weighing mode directly outputs control
signals such as supply, discharge, preliminary-full-
medium-dribble flow, recipe and mixing materials and
nozzle control without PLC.
★
Interface monitoring function
Control I/O, RS-232C,-422,-485 I/F, Current Loop, A/D
converter, BCD output, Relay output, Parallel I/O,
Analog output, etc. can be monitored to see if they are
working correctly. You can see each interface status
Output Terminals B1 to B11 Status
Input Terminals A1 to A11 Status
Example: Control I/O
Interface Monitoring Function
★
11 Control Inputs/11 Control Outputs
50
+
functions (such as Full Flow, Over, Under,
Discharge Bin, Net Display, etc.) for each of the 11
Control Inputs and 11 Control Outputs, depending on
the weighing system.
★
Standard RS-485
32 indicators can be hooked up to the PLC
(programmable logic controller), a PC (personal computer)
or other equipment that supports Modbus.
This is useful for control commands input and
recalling/updating the code memory.
★
Optional Field bus networking interface
boards for CC-Link, DeviceNet or
PROFIBUS
To meet increasing requirements for networking with
field bus systems, there are three bus-interface options
(CC-Link, DeviceNet and PROFIBUS), which can be
hooked up directly to the PLC units. More than two
indicators can be hooked up to the PLC at one time.
★
Interactive messages
Messages that assist current operations are shown
on the display and allow anyone to operate the
AD-4402 without an instruction manual. Just follow
the interactive setting and operating procedures on
the display. Sometimes mistakes happen. When they
do, a message is displayed so you can recognize the
situation and take corrective steps.
★
Digital Span and Gravity Acceleration
Compensation
When you cannot use an actual calibration weight due
to location, just input the load cell rated output voltage
for zero point and full capacity calibration. After
moving the calibrated weighing system, recalibrate it
by inputting the local gravity acceleration value.
★
Calibrated A/D board
The A/D board is calibrated before shipment and
guaranteed to 1/500 accuracy. You can quickly
replace the A/D board if there is a malfunction.
★
Safety check function
This function is used to stop the sequence when an
error or an emergency occurs. When the safety
function is used, an error code is displayed and an
error signal is output automatically to the PLC to stop
the system. Up to eight emergency overrides can be
installed.
visually during operation without stopping the
weighing system.
(7 pagine)
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