Weighing Indicator

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http://www.aandd.jp

AD-4401A

Complete with measuring sequence and transmission functions.
Advanced system for hoppers, checkweighers and platform scales
is now even more accurate!
Easily replaceable● The size, color, method of operation and installing to a control panel of the AD-4401A remains the same as the AD-4401.
● Interface connectors retain compatibility so even when updating from AD-4401 to AD-4401A previously connected
devices can continue to be used without changing any connectors.
● Functions have been added but the default settings remain identical to the AD-4401.

The AD-4401A incorporates a multitude of application functions and is suitable for a variety of weighing systems.
● Normal batching / Loss-in-weight measuring
The AD-4401A ensures precise control through an array oftimers. When necessary batch weighing settings such asdispense control and supplementary ﬁll are available.
(Sequential mode)● Digital Span
Normal scale calibration generally requires actual weights.
However, keying in the speciﬁed load cell voltage allows
calibration to be performed when using actual weights is
not possible.

● Modbus-RTU/Modbus-TCP
Options: AD4401A-04 RS-485(Modbus-RTU),
AD4401A-23 Ethernet (Modbus-TCP)
Multiple AD-4401A units can be connected to a PLC or HMI
capable of Modbus communication.
Using Modbus communication makes it easy to set
functions, operations and collect weighing data.
If you save the calibration or function data of the AD-4401A
to a PLC or HMI storage area using Modbus-RTU/TCP, you
can restore this data from the PLC or HMI when replacing
an AD-4401A unit to save time.

● Automatic weight accumulation
This function allows for the automatic accumulation of net
weight when weighing is complete. Correct weights andshortages can be excluded. Accumulated weights andcounts are stored in non-volatile memory.
● Supplementary Flow
This function engages drizzle ﬂow intermittently until thetarget weight is reached to compensate for insuﬃcientweight. No more worrying about weight shortages again!

Handles an assortment of peripheral devices and applications■ Software for batch weighing and comparator included● Batch weighing mode
Four types of weighing and batching modes combined with ahigh sampling rate (100 times/sec) make for excellent hopperand packer scales. The AD-4401A's many measurement
sequences are supported by a digital ﬁlter with superior
vibration cancelling, weighing and batching time monitoring, supplementary ﬂow for correcting ﬁnal value shortages
and fast, high precision batch weighing control.

Standard serial output
Setpoint Input● Option
BCD Output
AD4401A-01

RS-422 / 485

AD4401A-03*Weighing Modes: Normal and sequential batch / loss-in-weight● Comparator mode
Four diﬀerent weighing modes are available when using thecomparator function to sort checked products by weight.
Weighing judgment signals for each of ﬁve checkweighing
levels can be sent when setting values are reached.
■ External I/O
Control of peripheral devices and I/O signals necessary fordata management come standard or can be added as anoption.
● Standard Equipment
Weighing control I/O signals for external
Control I/O
devices
6 inputs, 8 outputs (open collector)

RS-232C

AD4401A-04

Setpoint unit

AD4401-06

Analog Output

AD4401A-07

Ethernet

AD4401A-23

Data output for A&D printers, external
display devices (20mA current loop)
Digital switch for setpoint values. Can beconnected to setpoint unit (AD4401-06)
Measurement data is transmitted by BCD
6 digit code signal. (Open collector output)
Used for sending data to computers andfor sending commands to the AD-4401A.
RS-422 connection max. 10 units
RS-485 connection max. 32 units
RS-485 Modbus-RTU connection max. 32 units
Used to connect an external display,printer, or computer. Remote functioncommands and setting changes arepossible through using command mode.
Digital switch unit for settingbatch/loss-in-weight setpoints
Transmits weight data to analog input
devices at 4 to 20mA
Modbus-TCP
connection max. 65534 unitsWeighing Indicator
31245

Large main display and sub display on the front panel are equipped with bright VFD displays
to allow for quick conﬁrmation of measurement status and data settings.
Operation and setting key switch designed for superior operability.
1) Main display2) Sub display3) Status display (upper)4) Status display (lower)
5) Key switch

7 digit 7-segment display for weight values
8 digit 7-segment display switches between weight values andaccumulation numbers etc.
Shows weight related values and measurement status.
Displays setpoint and judgment outcome status.
Key for setting functions, operations, and setpoints.

Added features High Performance Digital Filter

Featuring a High-Performance
Digital Filter for Environmentswith Vibrations!
The HPDF provides high accuracy/high speed weighing inenvironments with vibrations. It greatly reduces the costs
and maintenance required for anti-vibration equipment
since it handles vibrations without requiring extensive
mechanical vibration countermeasures. What's more,
conducting weighing while applying vibrations, once anextremely diﬃcult task, is now possible.
There is only one setting for the high performance digitalﬁlter. This allows the AD-4410 to ﬁnd the optimal value tocancel out vibration with only minimal changes to thesettings.

Reliably
accurate!

Even withvibrations,weighing is easy!

Rear Panel (I/O terminal functions can be selected)
External device control I/O are not ﬁxed and can be changed upon request. Easy
maintenance was a priority for the terminal board used for load cell and power source
connection making the AD-4401A suitable for a wide range of systems.
Setpoint
Control I/OStandard serial output
Optional Slot

Terminal board

Provides connection to digital switch or setpoint unit (AD4401-06)
and external setpoint conﬁguration.
Used for measurement control signals and can be changed todesired terminal function.
Standard current loop signal output used for printers and displays.
One of the following can be attached: AD4401A-01 (BCD Output),
AD4401A-03 (RS-422/485), AD4401A-04 (RS-232C),
AD4401A-23 (Ethernet)
Load cell, power source, AD4401A-07 (analog output) connection.

Setpoint

Optional Slot

Quick
response!

Standard
Control I/O serial output

Terminal board

AD-4401AWeighing Indicator

Speciﬁcations■ Analog unit

Input sensitivity
Zero adjustment range
Load cell excitation voltage

Over 0.3μV/d (d=minimum division)
0mV to 20mV (0mV/V to 2mV/V)
DC10V±5%, 230mA
Remote sensing function included
Up to 8 ✕ 350Ω load cells can be connected
Zero: ±(0.2μV+0.0008% of Dead Load)/˚C Typ.
Span: ±0.0008%/˚C Typ.
0.01% of F.S.
Less than 0.3μVp-p
32mV (3.2mV/V)
10MΩ and above
Delta-sigma modulation
Approx. 1,000,000
999,999d
100 times per second

Temperature coeﬃcients
Nonlinearity
Input noise
Maximum measurement voltage
Input impedance
A/D conversion method
A/D resolution
Display resolution
Sampling rate

■ Digital unit

Display elements: VFD (Display: cobalt blue Status display: orange)
Display Types 1. Main display
7 digit 7-segment display with 13mm characters
2. Sub display
8 digit 7-segment display with 7mm characters
3. Status
Orange rectangle marks (14)Main display: Switches between NET and GROSS
Display Range 0-999999d(Minimum scale d can be 1, 2, 5, 10, 20 or 50)
Units g, kg, t
Sub display: Gross, net, tare, ﬁnal, accumulated weight, number ofaccumulations (One of the above can be selected), ALARM, FINAL,
Status Display: ZERO, MD, GROSS, NET, HOLD,F.FALL, PRELIM, OP.PLM, OVER, UNDER,
NEAR-ZERO (In weighing mode)■ External input/output
Control I/OStandard serial output
Setpoint

6 selectable output nodes(no-voltage contact point or open collector input)
8 selectable input nodes (open collector output)
maximum load voltage: DC30V
maximum load current: 50mA
20mA current loop
(for use with A&D peripheral devices)
For Digital Switch andAD4401-06 (setpoint unit) connection■ General speciﬁcations
Power supply voltage
Power consumption
Operating temperature
Operating humidity
External dimensions
Panel cut dimensions

AC100 to 240V (50/60Hz)
Approx. 30VA− 10˚C to 40˚C
85% R.H. or less (No condensation)
144(W) ✕ 72(H) ✕ 197(D) mm
138 ✕ 68 mm■ Standard accessories

Simpliﬁed manual, control I/O connector,
standard serial output connector, capacity plate, unit label,
panel mount packing, terminal block cover, rubber pads

■ Options❈AD4401A-01❈AD4401A-03❈AD4401A-04

AD4401-06❈AD4401A-07

AD4401-10❈AD4401A-23

Parallel BCD output (open collector)
RS-422 / 485 RS-485 Modbus-RTU
RS-232C D-sub 25pin
Setpoint unit+0.5(Panel cut 181+1.0−0 (W) ✕ 53 −0 (H) mm)
Analog Output
Stainless steel side panel
Ethernet connecter RJ45 Modbus-TCPnote) Only one option from AD4401A-01, 03, 04, 23 can be equipped❈Dedicated options for AD-4401A (noncompatible with AD-4401)

External dimensions
7144AD-4401A
WEIGHING
INDICATOR

ZERO MDGROSS NET

HOLD

1421

ALARM

72kg
FINAL F.FALL PRELM OP.PLM OVER UNDER Z.BAND

CAL

0T Net /B/G
SETPOINT ZERO TARE NET / GROSSFENTER OPR / STB
ESC

138 +1−0137
CONTROL I/O

Installation AD4401A-23

SER.OUT

68 +− 10

SETPOINT67Unit: mm

197
154

Panel cut(Hole)

Appearance and/or speciﬁcations subject to change for improvement without notice.

A&D Company, Ltd.

3-23-14 Higashi-Ikebukuro, Toshima-Ku, Tokyo, 170-0013, Japan Tel: +81 3-5391-6132 Fax: +81 3-5391-1566 http://www.aandd.jp

A&D Engineering, Inc.

1756 Automation Parkway, San Jose, CA 95131, U.S.A. Tel: +1 408-263-5333 Fax: +1 408-263-0119

A&D Australasia Pty Ltd.

32 Dew Street, Thebarton, South Australia 5031, Australia Tel: +61 8-8301-8100 Fax: +61 8-8352-7409

A&D Instruments Ltd.

Unit 24/26 Blacklands Way, Abingdon Business Park, Abingdon, Oxfordshire, OX14 1DY, United Kingdom Tel: +44 1235-550420 Fax: +44 1235-550485<German Sales Office>Hamburger Straße 30, D-22926, Ahrensburg, Germany Tel: +49 4102-459230 Fax: +49 4102-459231

A&D Korea Ltd.

8F Manhattan Bldg., 33, Gukjegeumyung-ro 6-gil, Yeongdeungpo-gu, Seoul, 07331, Korea Tel: +82 2-780-4101 Fax: +82 2-782-4280

A&D Rus Co., Ltd.

Vereyskaya Str. 17, 121357, Moscow, Russia Tel: +7 495-937-33-44 Fax: +7 495-937-55-66

A&D Instruments India (P) Ltd.

509 Udyog Vihar Phase V Gurgaon-122 016, Haryana, India Tel: +91 (124) 471-5555 Fax: +91 (124) 471-5599* AD4401A-ADCC-02-ZW2-18c01GP