Unipulse F805AT-BC User manual

F805AT-BC BELT SCALE CONTROLLER
15 Feb. 2019
Rev. 1.03
OPERATION MANUAL

Introduction
I
Introduction
Thank you very much for purchasing our F805AT-BC (Belt scale type).
For good performance, and proper and safe use of the F805AT-BC, be sure to read this instruction
manual and properly understand the contents of it before use. Also, carefully keep this instruction
manual so that it can be referred to at any time.
Safety Precautions
In order to have an F805AT-BC used safely, notes we would like you to surely follow divide into
" " and " ", and are indicated by the following documents. Notes indicated
here are the serious contents related to safely. Please use F805AT-BC after understanding the contents
well.
For safety reasons, please read the following safety precautions thoroughly.
WARNING
CAUTION
WARNING
This sign forewarns the presence of hazards that could result in serious injury or
fatality when incorrectly handled.
CAUTION
This sign forewarns the presence of hazards that could result in personnel injury or
property damage when incorrectly handled.

Safety Precautions
II
WARNING
●For the entire system to function safely when the F805AT-BC becomes faulty or
malfunctions, provide a safety circuit outside the F805AT-BC.
●Before using the F805AT-BC as described below, make sure to consult with our sales
personnel.
- Use in environments not described in the operation manual.
- Use greatly impacting human lives and assets, such as medical devices, transport devices
entertainment devices, and safety devices.
●Do not disassemble, repair, or modify the F805AT-BC. Doing so may cause a fire or an
electric shock.
●Do not install in the following environments.
- Places containing corrosive gas or flammable gas.
- Where the product may be splashed with water, oil or chemicals.
●Do not connect a commercial power source directly to the signal input/output terminals.
●Be sure to ground the protective ground terminal.
●The attached AC cable is designed for domestic use in Japan, and its rating is 125V AC, 7A.
For use at voltages exceeding the rating and for overseas use, have a separate AC cable
prepared.
●Before performing the following, make sure that no power is applied.
- Attachment/detachment of connectors of options, etc.
- Wiring/connection of cables to the signal input/output terminals.
- Connection to the ground terminal.
●For connection to the signal input/output terminals, check the signal names and pin
assignment numbers, and then carry out wiring properly.
●The connection to the RS-485 terminal block must use the crimp contacts.
Do not connect it the open-wire line.
●After wiring, be sure to mount the attached terminal block cover. Otherwise, it may cause an
electric shock. (at the DC spec.)
●To take measures against lightning surge, install a lightning surge protector (optionally
available).
●Do not connect anything to unused terminal(s).
●Before applying power, carefully check the wiring, etc.
This sign forewarns the presence of hazards
that could result in serious injury or fatality
when incorrectly handled.
Warning on design
Warning on installation
Warning on wiring

Safety Precautions
III
WARNING
●Use a power supply voltage and load within the specified and rated ranges.
●Do not damage the power cord. Doing so may cause fire or electric shocks.
●Do not touch any signal input/output terminal while applying power. Doing so may cause
electric shocks or malfunctions.
●If the cover of the main body is opened, it may cause an electric shock internally. Even if the
power is off, the internal capacitor is charged. Contact us for internal inspection or repair.
●In the case of smoke, an abnormal smell or strange sound, immediately turn off the power,
and disconnect the power cable.
●Lithium battery use in the F805AT-BC unit.
type: CR14250SE manufactured by Sanyo Electric, or equivalent
Voltage: 3 volts
Capacity: 850 mAh
This sign forewarns the presence of hazards
that could result in serious injury or fatality
when incorrectly handled.
Warning during startup and maintenance
CAUTION
●Use the F805AT-BC as it is incorporated in a control panel, etc.
●Do not install in the following environments:
- Locations where temperature or humidity exceeds specifications;
- Locations subjected to drastic temperature fluctuations or icing and condensing;
- Outdoors or locations above 2,000m;
- Locations exposed to direct sunlight;
- Locations subject to dust accumulation;
- Locations with poor ventilation;
- Locations with a lot of salt and metal powder;
- Locations where the main unit is subject to direct vibration and shock.
●Take adequate shielding measures when using at the following locations.
- Near a power line.
- Where a strong electric field or magnetic field is formed.
- Where static electricity, relay noise or the like is generated.
●Install the F805AT-BC as far away from devices generating high frequency, high voltage,
large current, surge, etc., as possible. Also, carry out wiring separately from their power
lines. Do not carry out parallel wiring and common wiring.
●Do not use it, broken down.
This sign forewarns the presence of hazards
that could result in personnel injury or property
damage when incorrectly handled.
Caution on installation

IV
About the power cable
CAUTION
●Tighten the screws for the signal input/output terminals at the specified torque.
If they are loose, shorts, fire or malfunctions may occur.
Tightening torque: 0.5N •m (at the DC spec.)
●For sensors, external inputs/outputs and options, use shielded cables.
●The temporary overvoltage applied to the power should not exceed 1500V.
●For turning on/off the power, be sure to keep intervals of 5 seconds or more.
●After power-on, make sure to warm up the F805AT-BC for at least 30 minutes or more before
use.
●If the F805AT-BC is not used by the specified method, its protective performance may be
impaired.
●Maintenance
- When performing maintenance, disconnect the power.
- Do not wipe with a wet rag, or with benzine, thinner, alcohol, etc. Doing so may cause
discoloration or deformation of the F805AT-BC. In the case of heavy contamination,
wipe off the contamination with a cloth after dipping it into a diluted neutral detergent
and wringing it well, and then wipe with a soft, dry cloth.
●When the F805AT-BC is shipped, spacers made of corrugated cardboard are used as
cushioning materials.
Though it is factory-designed so that shocks can sufficiently be absorbed, breakage may
result if shocks are applied when the spacers are reused for transportation. If you send the
F805AT-BC to us for repair, etc., take adequate measures against shocks by using
polyurethane materials, etc., separately.
●If you dispose of the product, handle it as industrial waste.
This sign forewarns the presence of hazards
that could result in personnel injury or property
damage when incorrectly handled.
Caution on wiring
Caution during startup and maintenance
Caution during transportation
Caution during disposal
CAUTION
●The power cable attached is an object for checking of operations.
Please use the power cable authorized in the country for employment.
This sign forewarns the presence of hazards
that could result in personnel injury or property
damage when incorrectly handled.

RoHS-compliant product
V
RoHS-compliant product
The parts and attachments (including the instruction manual, packaging box, etc.) used for this unit are
compliant with the RoHS Directive restricting the use of hazardous substances with regard to adverse
effects on the environment and human body.
What is RoHS?
It is an abbreviation for Restriction on Hazardous Substances, which is implemented by the European
Union (EU). The Directive restricts the use of six specific substances in electric and electronic
equipment handled within EU borders. The six substances are lead, mercury, cadmium, hexavalent
chromium, PBB (polybrominated biphenyls), and PBDE (polybrominated diphenyl ethers).
Please inquire of our sales person about the RoHS-compliance of the option.

CONTENTS
VI
CONTENTS
1．FEATURES OF F805AT-BC (BELT SCALE TYPE) ..............1
1-1．Basic Functions .................................................................................... 1
1-2．Control Functions ................................................................................. 1
1-3．Master-Slave Functions ....................................................................... 2
1-4．RS-232C, RS-485 (RS-485 optional) .................................................... 3
1-5．Current Outputs (2 channels) and Pulse Input (DAC) ....................... 3
1-6．Analog Inputs (2 channels) and Current Outputs (3 channels)
(ANA optional) ...................................................................................... 3
1-7．BCD Input/Output (BCI and BCO optional) ........................................ 3
1-8．Upper/Lower Limit Comparison .......................................................... 3
1-9．Total Pulse Output (2 channels) .......................................................... 3
1-10．Interface ............................................................................................... 4
1-11．Graphics Display ................................................................................ 4
2．FRONT PANEL AND REAR PANEL ......................................5
2-1．Front Panel ............................................................................................ 5
2-2．Rear Panel ............................................................................................. 6
3．SCREEN LAYOUTS AND SETTINGS ....................................8
3-1．Screen Configuration Flow Chart ........................................................ 8
3-2．Settings .................................................................................................. 9
3-2-1．Item selection ............................................................................................. 9
3-2-2．Parameter setting .................................................................................... 10
3-3．Screens ................................................................................................ 11
3-3-1．Comparison screen ................................................................................. 11
3-3-2．Message screen ....................................................................................... 13
3-3-3．Graph screen ........................................................................................... 14
4．SIGNAL CONNECTION ........................................................15
4-1．Load Cell Connection ......................................................................... 16
4-1-1．6-wire load cell connection ..................................................................... 16
4-1-2．4-wire load cell connection ..................................................................... 17
4-1-3．Connecting load cells in parallel ............................................................ 18

CONTENTS
VII
4-1-4．Sensor cable ............................................................................................ 18
4-2．Connecting power input terminal at the DC Spec. .......................... 19
4-3．Connection of the protective ground ................................................ 19
4-4．Connecting SI/F .................................................................................. 20
4-5．Connecting SI/FII ................................................................................ 20
4-6．External I/O Connector ....................................................................... 21
4-6-1．Pin assignment ........................................................................................ 21
4-6-2．Equivalent circuit (input) ........................................................................ 22
4-6-3．Equivalent circuit (output) ...................................................................... 22
4-7．RS-232C Connector ............................................................................ 23
4-7-1．Pin assignment ........................................................................................ 23
4-7-2．Cable connection ..................................................................................... 23
5．CALIBRATION ......................................................................24
5-1．What is calibration? ............................................................................ 24
5-2．Actual Load Calibration (Weight Calibration) .................................. 25
5-3．Secondary Calibration
(Calibration using equivalent input) [Weight calibration] ............... 26
5-4．Flow Calibration .................................................................................. 28
5-5．Preparation for Calibration ................................................................ 29
5-5-1．Releasing the LOCK ................................................................................ 29
5-6．Weight Calibration .............................................................................. 31
5-6-1．Zero calibration ........................................................................................ 31
5-6-2．Span calibration ....................................................................................... 33
5-6-3．Equivalent calibration ............................................................................. 35
5-6-4．Balance weight ........................................................................................ 36
5-6-5．Capacity .................................................................................................... 36
5-6-6．Minimum scale division (weight) ........................................................... 36
5-6-7．Excitation voltage .................................................................................... 36
5-6-8．Decimal place (weight) ............................................................................ 37
5-6-9．Gravitational acceleration ....................................................................... 37
5-6-10．Initial dead load ..................................................................................... 38
5-7．Settings for Flow Calibration ............................................................. 39
5-7-1．Zero error measure .................................................................................. 39
5-7-2．Span error measure ................................................................................. 40
5-7-3．Zero error set ........................................................................................... 40
5-7-4．Span error set .......................................................................................... 40
5-7-5．Test mode ................................................................................................. 41
5-7-6．Belt length ................................................................................................ 41
5-7-7．Cal weight density ................................................................................... 41
5-7-8．Rated weight density ............................................................................... 42

CONTENTS
VIII
5-7-9．Decimal place (FLOW) ............................................................................. 42
5-7-10．Speed input count meas (DAC required) ............................................ 43
5-7-11．Speed input count ................................................................................. 44
5-7-12．Error meas.select .................................................................................. 44
5-7-13．Min.scale div.(FLOW) ............................................................................ 45
5-7-14．Z_error upper limit ................................................................................. 45
5-7-15．Zero point auto adjustment .................................................................. 45
6．SETTING AND ADJUSTMENT OF READING .....................46
6-1．Operation ............................................................................................. 46
6-1-1．Weighing section ..................................................................................... 46
6-1-2．Rated feed rate (FS) ................................................................................. 46
6-1-3．Feed unit ................................................................................................... 46
6-1-4．Operation select ...................................................................................... 47
6-1-5．Rated belt speed ...................................................................................... 47
6-1-6．Dead band ................................................................................................ 47
6-1-7．Dead band load ratio ............................................................................... 48
6-1-8．Dead band belt speed ............................................................................. 48
6-1-9．Moisture ratio ........................................................................................... 48
6-1-10．Feed pulse (W/P) 1 ................................................................................. 49
6-1-11．Feed pulse (W/P) 2 ................................................................................. 49
6-1-12．Pulse width 1 .......................................................................................... 49
6-1-13．Pulse width 2 .......................................................................................... 49
6-1-14．Total W. disp. digit ................................................................................. 50
6-1-15．Alarm time .............................................................................................. 50
6-1-16．Start time, First stability time ............................................................... 51
6-1-17．Operation mode ..................................................................................... 52
6-2．Function ............................................................................................... 54
6-2-1．Total weight clear .................................................................................... 54
6-2-2．Start/Stop key .......................................................................................... 54
6-2-3．Digital zero (DZ) ....................................................................................... 54
6-2-4．Digital zero clear ...................................................................................... 55
6-2-5．Zero tracking (ZT) .................................................................................... 55
6-2-6．DZ regulation value ................................................................................. 56
6-2-7．Z_ERR key ................................................................................................ 56
6-2-8．Weighing code selection ........................................................................ 56
6-2-9．I/O monitor display .................................................................................. 57
6-3．Communication (RS-232C, SI/F, SI/FII) ............................................. 58
6-3-1．Baud rate .................................................................................................. 58
6-3-2．Character length ...................................................................................... 58
6-3-3．Parity bit ................................................................................................... 58
6-3-4．Stop bit ..................................................................................................... 58
6-3-5．Terminator ................................................................................................ 59
6-3-6．SI/F output1 select ................................................................................... 59
6-3-7．SI/F output2 select ................................................................................... 59
6-3-8．SI/FII ID ..................................................................................................... 60
6-4．Comparison ......................................................................................... 60
6-4-1．Alarm upper limit ..................................................................................... 60

CONTENTS
IX
6-4-2．Alarm lower limit ...................................................................................... 61
6-4-3．Alarm mode .............................................................................................. 61
6-4-4．Total final .................................................................................................. 61
6-4-5．Total final mode ....................................................................................... 62
6-4-6．Belt speed over ........................................................................................ 62
6-4-7．Weight density over ................................................................................ 63
6-4-8．Feed rate over .......................................................................................... 63
6-4-9．Load ratio over ......................................................................................... 63
6-4-10．Feed ratio over ....................................................................................... 64
6-5．Graph Setting ...................................................................................... 64
6-5-1．Bar graph screen ..................................................................................... 64
6-5-2．Belt speed end point ............................................................................... 64
6-5-3．Weight density end point ........................................................................ 65
6-5-4．Feed rate end point ................................................................................. 65
6-5-5．Load ratio end point ................................................................................ 65
6-5-6．Feed ratio end point ................................................................................ 65
6-5-7．Disp. data select 1 ................................................................................... 66
6-5-8．Disp. data select 2 ................................................................................... 66
6-5-9．Points in waveform graphic display ...................................................... 67
6-5-10．Details of waveform display ................................................................. 68
6-5-11．Graphic mode ........................................................................................ 71
6-5-12．Trigger level ........................................................................................... 71
6-5-13．Trigger CH select ................................................................................... 72
6-5-14．Split selection ........................................................................................ 72
6-5-15．Disp. partition Ch1/Ch2/Ch3 ................................................................. 72
6-5-16．Ch1/Ch2/Ch3 start point ........................................................................ 73
6-5-17．Ch1/Ch2/Ch3 end point ......................................................................... 73
6-5-18．X end point ............................................................................................. 73
6-6．Display ................................................................................................. 74
6-6-1．Display frequency .................................................................................... 74
6-6-2．Digital filter ............................................................................................... 74
6-6-3．Analog filter .............................................................................................. 74
6-6-4．Average count .......................................................................................... 75
6-6-5．Error display control ............................................................................... 75
6-6-6．Data select key ......................................................................................... 75
6-6-7．Disp data selection .................................................................................. 76
6-7．Control Parameter .............................................................................. 76
6-7-1．Target set ................................................................................................. 76
6-7-2．Control limit ............................................................................................. 77
6-7-3．Allowable control dev. ............................................................................ 77
6-7-4．Rate limit .................................................................................................. 77
6-7-5．Fault detect value .................................................................................... 78
6-7-6．Master/Slave select ................................................................................. 78
6-7-7．Slave mode select ................................................................................... 78
6-7-8．Start/Error display ................................................................................... 79
6-7-9．Flow stability time ................................................................................... 79
6-7-10．Start coordin. value ............................................................................... 80
6-7-11．Control frequency .................................................................................. 81
6-8．Each Code ........................................................................................... 81

CONTENTS
X
6-8-1．How to assign code ................................................................................. 82
6-8-2．PID control ............................................................................................... 82
6-8-3．AT coordin time, AT coordinate 1 –4, AT coordin out 1 -4 .................. 85
6-9．States Ascertain .................................................................................. 86
6-9-1．Belt speed over asc. ................................................................................ 86
6-9-2．Weight density over asc. ........................................................................ 86
6-9-3．Feed rate over asc. .................................................................................. 87
6-9-4．Load ratio over asc. ................................................................................. 87
6-9-5．Feed ratio over asc. ................................................................................. 88
6-9-6．Deviation lim. over asc. ........................................................................... 88
6-10．System ............................................................................................... 89
6-10-1．Back light auto. light. ............................................................................ 89
6-10-2．Back light low time ................................................................................ 89
6-10-3．Back light ON time ................................................................................. 89
6-10-4．LOCK（soft）.......................................................................................... 90
6-10-5．Self check ............................................................................................... 90
6-10-6．Language ................................................................................................ 94
6-10-7．PASS WORD .......................................................................................... 94
7．CONTROL SIGNAL (External I/O Connector) ....................95
7-1．Pin Assignment ................................................................................... 95
7-2．Equivalent Circuit (input) ................................................................... 96
7-3．Equivalent Circuit (output) ................................................................. 96
7-4．External Input Signal .......................................................................... 97
7-4-1．Running (edge input) .............................................................................. 97
7-4-2．Display 1 change (level input) ................................................................ 97
7-4-3．Display 2 change (level input) ................................................................. 97
7-4-4．Total weight clear (edge input) ............................................................... 98
7-4-5．Digital Zero (edge input) ......................................................................... 98
7-4-6．Zero point auto adjustment (edge input) ............................................... 98
7-4-7．Test mode span measurement (edge input) ......................................... 99
7-4-8．Pulse count start (edge input) ................................................................ 99
7-4-9．Pulse count stop (edge input) ................................................................ 99
7-4-10．Operation mode (level input) .............................................................. 100
7-4-11．Graph drawing (edge input) ................................................................ 100
7-4-12．Code # designation (level input) ........................................................ 100
7-5．External Output Signal ..................................................................... 101
7-5-1．Pulse output 1 ........................................................................................ 101
7-5-2．Pulse output 2 ........................................................................................ 101
7-5-3．Upper limit (HI) ....................................................................................... 101
7-5-4．GO ........................................................................................................... 101
7-5-5．Lower limit (LO) ..................................................................................... 101
7-5-6．Weight error ........................................................................................... 101
7-5-7．Belt moving ............................................................................................ 101
7-5-8．Power ON ............................................................................................... 101
7-5-9．Running .................................................................................................. 102

CONTENTS
XI
7-5-10．NZ .......................................................................................................... 102
7-5-11．Total final over ..................................................................................... 102
7-5-12．Zero error measuring .......................................................................... 102
7-5-13．Zero error measure OK ....................................................................... 102
7-5-14．Zero error measure NG ....................................................................... 102
8．INTERFACE ........................................................................103
8-1．2-Wire Serial Interface SI/F .............................................................. 103
8-2．2-Wire High-Speed Bi-Directional Serial Interface SI/F II .............. 104
8-3．RS-232C Interface ............................................................................. 105
8-3-1．Communication specifications ............................................................ 105
8-3-2．Settings for RS-232C ............................................................................. 106
8-3-3．Cables ..................................................................................................... 106
8-3-4．Communication format ......................................................................... 107
8-4．D/A Converter [DAC] ........................................................................ 124
8-4-1．External output port .............................................................................. 124
8-4-2．D/A output channel ................................................................................ 126
8-4-3．D/A output mode .................................................................................... 126
8-4-4．D/A zero output weight ......................................................................... 126
8-4-5．D/A full scale .......................................................................................... 127
8-4-6．D/A output compensation ..................................................................... 127
8-4-7．D/A lower limit ........................................................................................ 128
8-4-8．D/A upper limit ....................................................................................... 128
8-4-9．Speed entry select ................................................................................. 129
8-4-10．Pulse count/rotation ............................................................................ 129
8-4-11．Fine-adjustment of D/A converter ...................................................... 129
8-4-12．Pulse input entry procedure ............................................................... 131
9．OPTION (Option card required) ........................................132
9-1．BCD Parallel Output Interface [BCO] .............................................. 132
9-1-1．Connector pin assignments ................................................................. 132
9-1-2．Equivalent circuit (output) .................................................................... 133
9-1-3．Equivalent circuit (input) ...................................................................... 133
9-1-4．BCD data output .................................................................................... 133
9-1-5．Polarity output (MUNUS) ....................................................................... 134
9-1-6．Over status output (OVER) ................................................................... 134
9-1-7．Data strobe (STROBE) .......................................................................... 134
9-1-8．Hold input ............................................................................................... 134
9-1-9．Logic toggling input .............................................................................. 134
9-1-10．Output selection input ........................................................................ 135
9-1-11．BCD out setting ................................................................................... 135
9-2．BCD Parallel Data Input Interface [BCI] .......................................... 136
9-2-1．Connector pin assignment (BCD INPUT) ............................................ 136
9-2-2．Equivalent circuit ................................................................................... 136
9-2-3．Two reading modes ............................................................................... 136
9-2-4．Level input mode (STROBE short-circuited) ...................................... 137

CONTENTS
XII
9-2-5．Edge input mode ................................................................................... 137
9-2-6．Data code (23, 24, 25 pin) ...................................................................... 137
9-3．Analog IN/OUT [ANA] ....................................................................... 138
9-3-1．External output port .............................................................................. 139
9-3-2．AO channel select ................................................................................. 140
9-3-3．AO output mode .................................................................................... 140
9-3-4．AO zero output weight .......................................................................... 141
9-3-5．AO full scale value ................................................................................. 141
9-3-6．AO output compensation ...................................................................... 141
9-3-7．AO lower limit ........................................................................................ 142
9-3-8．AO upper limit ........................................................................................ 142
9-3-9．Fine adjustment of current output ....................................................... 143
9-3-10．Current input select ............................................................................. 144
9-3-11．AI input channel ................................................................................... 144
9-3-12．AI zero set ............................................................................................ 145
9-3-13．AI full scale set .................................................................................... 145
9-3-14．AI digital filter ....................................................................................... 146
9-3-15．Target entry select ............................................................................... 146
9-3-16．AI target value ...................................................................................... 147
9-3-17．AI Min. Scale Div. ................................................................................. 147
9-3-18．Speed entry select ............................................................................... 147
9-4．RS-485 Interface [485] ...................................................................... 148
9-4-1．Communication specifications ............................................................ 148
9-4-2．One to One connection ......................................................................... 148
9-4-3．One to Multi connection ........................................................................ 149
9-4-4．Settings for RS-485 ............................................................................... 149
9-4-5．How to communicate ............................................................................ 149
9-4-6．Communication format ......................................................................... 150
10．ARITHMETICS ..................................................................151
10-1．Belt Speed [m/min] ......................................................................... 151
10-2．Weight Density [kg/m] .................................................................... 152
10-3．Feed Rate ([kg/h], [t/h]) ................................................................... 153
10-4．Load Ratio [%] ................................................................................. 153
10-5．Feed Ratio [%] ................................................................................. 153
10-6．Total ([kg/h], [t/h]) ........................................................................... 154
10-7．Standard Feed weight [kg] ............................................................. 154
10-8．Error Measure ................................................................................. 155
10-9．Compensation ................................................................................. 155
10-10．Equivalent Target ([kg/h], [t/h]) .................................................... 155
10-11．Initial Control Rate［％］............................................................... 156
10-12．Control Deviation .......................................................................... 156

CONTENTS
XIII
11．TROUBLESHOOTING ......................................................157
11-1．Running-down Lithium Battery ..................................................... 157
11-2．Over Scale Display ......................................................................... 158
11-3．Calibration Error Display ............................................................... 159
11-4．Sequence Error Display ................................................................. 159
11-5．ANA Error Display .......................................................................... 160
11-6．Priority for Error Display ................................................................ 160
11-7．Over Scale Display ......................................................................... 161
11-8．Sequence Error ............................................................................... 163
11-9．Calibration Error ............................................................................. 165
11-10．ANA Error (Analog IN/OUT interface required) .......................... 167
12．BLOCK DIAGRAM ............................................................168
13．DIMENSIONS ....................................................................169
14．MOUNTING ON A PANEL ................................................170
15．SPECIFICATIONS ............................................................171
15-1．Analog .............................................................................................. 171
15-2．Display ............................................................................................. 171
15-3．Setting .............................................................................................. 172
15-4．External I/O ...................................................................................... 172
15-5．Interface ........................................................................................... 172
15-6．General ............................................................................................ 175
15-7．Accessory and Parts ...................................................................... 176
16．SETTING ITEMS LIST ......................................................177
17．SETTING MODE TREE CHART ........................................184
18．STATEMENT OF CONFORMATION TO EC DIRECTIVES
(Designated when it is shipped) ....................................185

CONTENTS
XIV
M E M O

1.FEATURES OF F805AT-BC (BELT SCALE TYPE)
1
1. FEATURES OF F805AT-BC (BELT SCALE TYPE)
1-1. Basic Functions
F805AT-BC (Belt scale type) provides accurate metering of materials while they are
being conveyed on the belt conveyer. Using weight signal from the load cell and
velocity signal from the speed sensor installed on the conveyer system, the following
data items can be obtained through mathematical calculations:
①belt speed ②weight density ③feed rate ④load ratio
⑤feed ratio ⑥total
1-2. Control Functions
Using the speed signal from the rotary encoder and the weight signal from the load cell
as shown in the figures, the feeder can be controlled to maintain a constant flow, or feed
rate (continuous feed rate operation). Another possible control method is to operate the
feeder so that the total increases linearly with time (continuous total operation).
Weight detector (Load cell)
Velocity signal
Weight signal
Mathematical
F805AT-BC
Velocity detector
(rotary encoder)
Cement, sand, …
Total pulse count
weight density
load ratio
belt speed
feed rate
feed ratio etc.
calculations outputs
Velocity detector
Velocity signal
Weight signal
Control signal
Mathematical
F805AT-BC
Weight detector (Load cell)
Feeder
M
(rotary encoder)
Inverter, or other devices
4-20mA
calculation outputs
Total pulse count
weight density
load ratio
belt speed
feed rate
feed ratio etc.

1.FEATURES OF F805AT-BC (BELT SCALE TYPE)
2
1-3. Master-Slave Functions
As shown in the figures, two or more of F805AT-BCs can be configured to operate in a
master-slave mode, in which one F805AT-BC functions as a master and others as
slaves. The slaves operate following the target values and flow set by the master
device.
Up to eight F805AT-BCs can be connected to the same network, and they can be
grouped into four based on their IDs.
Velocity detector
Velocity signal
Weight signal
Control signal
F805AT-BC
Weight detector (Load cell)
Feeder
M
Inverter, motor, or other devices
Master
Velocity detector
Velocity signal
Weight signal
Control signal
F805AT-BC
Weight detector (Load cell)
Feeder
M
(rotary encoder)
Inverter, motor, or other devices
Slave
Target or flow value
(rotary encoder)
4-20mA
Mathematical
calculation outputs
Total pulse count
weight density
load ratio
belt speed
feed rate
feed ratio etc.
4-20mA
Mathematical
calculation outputs
Total pulse count
weight density
load ratio
belt speed
feed rate
feed ratio etc.

1.FEATURES OF F805AT-BC (BELT SCALE TYPE)
3
1-4. RS-232C, RS-485 (RS-485 optional)
Most of the set values, and most of the calculation results and device status information
can be read/written using the serial communication.
1-5. Current Outputs (2 channels) and Pulse Input (DAC)
The output mode for two current output channels can be separately selected from fixed
span mode (4mA or 20mA), or mathematical calculation dependent mode (belt speed,
weight density, feed rate, load ratio, feed ratio, control rate).
Pulse signal from the velocity detector can be used as the belt speed signal in
calculations.
1-6. Analog Inputs (2 channels) and Current Outputs (3 channels)
(ANA optional)
The output mode for three current output channels can be separately selected from
fixed span mode (4mA or 20mA), or mathematical calculation dependent mode (belt
speed, weight density, feed rate, load ratio, feed ratio, control rate).
Analog signal from the velocity detector (current, or voltage) can be used as the belt
speed signal in calculations.
Pulse signal from the velocity detector can be used as the belt speed signal in
calculations.
1-7. BCD Input/Output (BCI and BCO optional)
Alarm upper/lower limits, rated belt speed, and moisture ratio can be configured using
the BCD input.
BCD output can be used to send out following values: belt speed, weight density, feed
rate, load ratio, feed ratio, and total.
1-8. Upper/Lower Limit Comparison
Either load ratio or feed ratio is compared with its upper/lower limit, and the current
status is displayed and sent to the external output.
1-9. Total Pulse Output (2 channels)
One of two types of Total pulse outputs can be selected depending on the feed pulse
(W/P) and the pulse width settings.

1.FEATURES OF F805AT-BC (BELT SCALE TYPE)
4
1-10. Interface
F805AT-BC provides variety of interfaces to communicate with external devices.
1-11. Graphics Display
F805AT-BC provides two selectable display modes: bar graph and wave display.
Belt speed, weight density, feed rate, load ratio, and feed ratio can be displayed
simultaneously in a bar-graph display. The user can configure full-scale values for each
item.
F805AT-BC also provides a waveform display, in which input signals waveforms are
shown graphically. This mode can display belt speed, weight density, feed rate, load
ratio, feed ratio, and control rate.
Printer Display
RS-232C
SI/F
SI/FII
Personal computer etc.
RS-485
(option)
PLC etc.
PLC etc.
External I/O signal
Accumulator etc.
Pulse output
Feed rate, weight density, total, etc.
BCD OUT
(option)
Recorder etc.
D/A converter / Output×2ch
or
Analog IN/OUT /Output×3ch (option)
Data
converter
F805AT-BC
D/A converter / Pulse input
or
Analog IN/OUT / Voltage input or current input or Pulse input (option)
Speed input
(rotary encoder
BCD IN
etc.)
F805AT-BC F805AT-BC
Bar graph display Input waveform display

2.FRONT PANEL AND REAR PANEL
5
2. FRONT PANEL AND REAR PANEL
2-1. Front Panel
Touch-screen color LCD display
This touch-screen display is used for dual purposes: display of readings/graphs, and to
input/edit configuration parameters.
Power lamp
The light is on, when the F805AT-BC is turned on.
It remains on even if the device is in sleep mode (display blacks out).
Power Lamp
Touch-screen
color LCD display