A&D AD-4401A Instruction Manual

AD-4401A
Weighing Indicator
Simplified Instruction Manual
This manual is a simplified version of the instruction manual.
When using the indicator, please read the AD-4401A Weighing
Indicator Instruction Manual which is available on our website.
Download the latest complete instruction manual at:
URL: http://www.aandd.co.jp/
No part of this publication may be reproduced, transmitted,
transcribed, or translated into any other language in any form by any
means without the written permission of A&D Company, Limited.
The contents of this manual and the specifications of the instrument
covered by this manual are subject to change for improvement without
notice.
2015 All rights reserved.
3-23-14 Higashi-Ikebukuro, Toshima-ku, Tokyo 170-0013, JAPAN
Telephone: [81] (3) 5391-6132
Fax: [81] (3) 5391-6148
1WMPD4003052
1.
SAFETY PRECAUTIONS
Read the following precautions carefully before using the indicator.
[Precautions for designing]
WARNING
● Provide an external safety circuit to the indicator so that the safety of the whole system
can be secured even if errors occur in the external power supply or in the indicator.
[Precautions for installation]
WARNING
● Do not use the indicator in the following environments:
- where the temperature and the humidity exceed the specifications
- where corrosive gases or flammable gases exist
- where the indicator gets wet with oil, chemicals or water
Please note that securing the indicator to the control panel will provide the
indicator outside of the control panel with IP65 protection.
● When installing or removing the indicator, be sure to turn off all used external
power supplies beforehand.
[Precautions for wiring]
WARNING
● When wiring the indicator, be sure to turn off all used external power supplies
beforehand.
● When wiring is complete, be sure to attach the terminal block cover provided
with the indicator.
● Be sure to earth ground the indicator.
CAUTION
● Do not clamp control wires or communication cables with power lines or place
them close to power lines.
● Place the load cell cable sufficiently away from high frequency circuits such as
high voltage power lines and inverter load circuits.

2. PART NAMES

2.1.
Front Panel
8
1
2
5
9
6 7
-1-
No. Name
Numerical 1 Main
Display
2 Sub
3 Unit
Status Dis- ZERO / STABLE (MD: Motion detection) / GROSS / NET / HOLD /
4
play (Upper) FUNCTION / ALARM
Normal batching Loss-in-weight batching
Status
Final weight / Free fall / Final weight / Free fall /
Display
5
Preliminary / Optional Preliminary / Full /
(Lower)
preliminary / Overweight / Overweight /
*
Underweight / Near-zero Underweight / Near-zero
6 CAL (Calibration) key
SETPOINT : Sets the setpoint values for batch weighing and check weighing.
ZERO: Sets the gross value to zero when the weight value is within the zero
setting range. (Default zero setting range: 2% of maximum capacity)
Key
TARE: Saves the current gross value as tare and sets the net value to zero.
Switches 7
NET/GROSS: Selects the weight value display method, gross or net.
Function: No function is assigned in the default setting.
ENTER: Does not function alone.
ON/OFF: Turns the display on or off.
8 Rating label (Accessory)
Other
9 Sealing cover
* Attach the accessory status label when performing loss-in-weight batching or check weighing.
2.2.
Rear Panel
1 2
4
5 6
No. Name No.
1 SETPOINT input connector 6 Optional analog 4-20 mA output terminal block
2 CONTROL I/O connector 7 AC power input terminal block
SER.OUT
3 8 Protective conductor terminal
(Standard serial output) connector
4 Option slot 9 Slide rail
5 Load cell input terminal block
2.3.
Accessories
Name Qty.
Terminal block cover 1 Panel mount packing
Terminal block cover securing screw 2 Rubber foot
Connector for the CONTROL I/O 1 Rating label
Connector for the SER.OUT 1 Status label
3.
INSTALLATION TO CONTROL PANEL
Make a hole in a control panel as shown below.
Remove the slide rails on both sides and
insert the AD-4401A with the accessory
packing through the hole into the panel.
AD-4401A
4
3 Insert the slide rails from behind.
-2-
4.
CONNECTION TO POWER SUPPLY
Terminal No. Symbol
11
12
13
Check weighing
Near-zero / Lo-Lo /
Live
Lo / Go / Hi / Hi-Hi
Neutral
5.
CONNECTION TO LOAD CELL
●6-wire connection
Load cell excitation voltage +
3
Load cell excitation voltage -
8
For 4-wire connection, short-circuit the terminals No.1 and No.2, and terminals No.3 and No.4.
9
6.
CALIBRATION
Calibrates the AD-4401A to convert the signal from the load cell to a mass value correctly.

6.1. Calibration Setting

7
Set the following calibration functions which are required for calibration using calibration weights.
Name
CALF- Item Setting Value
01 Unit
0: None
1: g
2: kg
3: t
4: lb
02 Decimal
0： 0 (No D.P.)
point 1： 0.0
position
2： 0.00
3： 0.000
4：0.0000
Name Qty.
The rest skipped (For details, refer to the instruction manual)
1
4
Press the CAL key in the normal mode.
1
1
When
When "
+1
138
-0
When "
Panel thickness
Unit: mm
1.6 to 3.2
Calibration function mode
Control
panel
Accessory
packing
Slide rails

6.2. Calibration Using Calibration Weights

Description
Ground terminal
AC power input (Neutral) Earthed conductive part
AC power input (Live) Unearthed conductive part
TML No. Symbol Description
1 EXC+ Load cell excitation voltage +
2 SEN+ Sensing input +
3 SEN- Sensing input -
4 EXC- Load cell excitation voltage -
5 SIG+ Load cell signal input +
6 SIG- Load cell signal input -
7 SHLD Frame ground
Shield
Sensing +
7.
Load cell signal + When the AD-4401A is powered ON, all the segments of the display turn ON and OFF
to check the display. Then the AD-4401A enters the normal mode and starts weighing.
If the AD-4401A is powered OFF during the OFF mode (with the display OFF),
Sensing -
the AD-4401A will be in the OFF mode when powered ON.
Load cell signal -

7.1. Control I/O

The applicable connector is an FCN-360 series 16-pin female connector
manufactured by Fujitsu Component Limited or the equivalent. An FCN-361J016
Default CALF- Item Setting Value Default
(connector) and an FCN-360C016 (cover) are provided with the indicator.
2 03 Minimum 1、 2、 5、 10、 20、 1
Pin No.
division 50 d
A1
A2
A3
0 04 Maximum 0 to 999999 20000
A4
capacity
A5
A6
A7
A8
The above are the default settings. Assigned functions can be changed for each pin.
Connection Diagram
Internal
"Cal
" is displayed, press the ENTER key.
Circuit
Cal 5et
" is displayed, press the NET/GROSS key.
Cal fnc
" is displayed, press the ENTER key.
Internal
Circuit
Save
Cancel
-3-
Press the CAL key in the normal mode.
Cal
When " " is displayed, press the ENTER key.
Cal 5et
When " " is displayed, press the ENTER
key.
Zero calibration
Press the ENTER key when the STABLE (MD)
status is turned OFF.
When the Function key is pressed, the AD-4401A
proceeds to span calibration without performing
zero calibration.
Dashes are displayed in the sub-display and zero
calibration is performed.
Span calibration
Set the calibration weight value in the sub-display.
Press the ENTER key when the STABLE (MD)
status is turned OFF.
Dashes are displayed in the sub-display and span
calibration is performed.
Press the ON/OFF key twice to return to the normal
mode.
FUNCTIONS
B1 B8
A1 A8
Description Description Pin No.
Zero setting Input Near-zero Output B1
Tare Input Underweight, Hi-Hi Output B2
Weighing start Input OK, Hi Output B3
Emergency stop Input Large flow, Full, Go Output B4
Discharge start Input Medium flow, Lo Output B5
Key lock Input Small flow, Lo-Lo Output B6
Input common Discharge Output B7
Output common Weighing end Output B8
12 V
680 Ω
3.3 kΩ A1
A6 Control input
- ON voltage: 5 V or less
A7
- ON current: 3 mA or more
- OFF current: 1 mA or less
AD-4401A
B1
Control output
B8
- Maximum load voltage: 30 VDC
- Maxi m um load current:: 50 mA/poi n t
- Voltage drop at ON: 1 V or less
3.3 kΩ
A8
- Leakage current at OFF: 0.1 mA
AD-4401A
or less
-4-