Unipulse F340A User manual

F340A DIGITAL INDICATOR
01 Aug. 2017
Rev. 1.44
OPERATION MANUAL

I
Introduction
We appreciate your kind purchase of F340A Digital Indicator.
To take full advantage of high performance of F340A, Thoroughly read this operating manual first before
use and understand the explanations contained herein for correct operating procedures.
Safety precautions
Make sure that installation, maintenance, and inspection of the F340A are performed by personnel with
electrical expertise.
In this manual, precautions for safe use of the F340A are separately described as and
in the following text. The precautions described in this text are important contents related to
safety. Use this indicator with accurate understanding of the contents.
Be sure to read for safety.
Warning
Events that may cause death or severe injury to personnel in the event of misuse.
Caution
Events that may cause injury to personnel or material damage in the event of misuse.
Warning
●Prepare a safety circuit outside the F340A so that the entire system functions safely if the
F340A fails or malfunctions.
●Be sure to contact our sales representative before use if the F340A will be used as follows:
- if the indicator is used in an environment not described in the operation manual;
- if the indicator is used in a way that causes substantial effects on medical devices,
transportation equipment, entertainment devices, safety devices, etc.
●Do not disassemble, repair, or alter the F340A. Fire or electric shock may occur.
●Do not install into the following environments:
- Locations with corrosive gas or combustible gas;
- Locations over which water, oil, or chemical splash
Warning
Caution
Events that may cause death or severe injury
to personnel in the event of misuse.
Design warning
Installation warning

II
Warning
●Do not connect commercial power supply directly to a signal I/O terminal.
●Be sure to perform class D grounding when installing the main unit
●The AC cable included is for use in Japan and the rating is AC125V, 7A. Prepare a separate
AC cable if the indicator is used at a voltage higher than the rating or is used overseas.
●Be sure to check that the power is off before the following actions:
- Removal and installation of optional connectors and so forth;
- Wiring and connection of cables to a power input terminal;
- Wiring and connection of cables to a signal I/O terminal;
- Connection to protective grounding terminals.
●Be sure to check signal names and pin assignment numbers and to wire cables properly
before connecting to a signal I/O terminal.
●Make sure to attach the terminal block cover included after wiring power supply. Electric
shock may occur.
●Install a lightning surge protector (optional) as a measure against lightning surges.
●Be sure to check wiring and so on carefully before turning power on.
●Use power supply voltage and load within the specified range and rating.
●Do not damage power cords. Fire or electric shock may occur.
●Do not touch a signal I/O terminal while the power is on. This may cause electric shock and
malfunction.
●Electric shock may occur inside when the cover of the main unit is opened. Internal
capacitors are charged even if power supply is cut off. Contact us for inspection and repair of
internal parts.
●Turn power off and unplug power cable immediately if smoke, abnormal smell, or abnormal
noise is detected.
Events that may cause death or severe injury
to personnel in the event of misuse.
Wiring warning
Startup/maintenance warning

III
Caution
●The F340A must be incorporated into the control panel and so forth.
●Do not install into 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.
●Perform adequate shielding if the indicator is used in the following locations:
- Near power lines;
- Locations subject to strong electric field and magnetic field;
- Locations subject to noise such as static electricity and relays.
●Install as far away as possible from equipment generating high frequency, high voltage,
large current, surge, etc. Perform wiring of cables separately from these power lines. Do not
perform parallel wiring and identical wiring.
●Do not use the indicator if damaged.
●Tighten power input terminal screws to the torque specified.
Loose tightening may cause short-circuiting, fire, or malfunction.
Tightening torque: 0.5N・m
●Use shielded cables for cables (sensors, external I/O, options).
●The temporary overvoltage applied to the power should not exceed 1500V.
●Be sure to have a time interval of five seconds or longer between turning power on and off.
●Use after warming up for 30 minutes or longer following the startup of power supply.
●Protective performance of the F340A may be lost if it is not used as specified.
●Care
- Unplug the power supply during maintenance.
- Do not wipe with a wet cloth, benzin, thinner, alcohol, etc. Doing so may cause
discoloration or deformation of the F340A.
When dirty, clean using a cloth soaked in diluted neutral detergent followed by a soft, dry
cloth.
Events that may cause injury to personnel or
material damage in the event of misuse.
Installation precautions
Wiring precautions
Startup/maintenance precautions

IV
Products supporting RoHS directive
The parts and accessories used in this machine (including the operation manual, package box and so on)
support RoHS Directive, which regulates the use of toxic substances that may have adverse effects on the
environment and human body.
RoHS directive
RoHS stands for Restriction on Hazardous Substances. This is an EU regulation regarding toxic
substances. This Directive prohibits the use of six specific substances in electrical/electronic equipment
products sold in the EU region. The six substances include lead, mercury, cadmium, hexavalent chromium,
PBB (polybrominated biphenyl) and PBDE (polybrominated diphenyl ether).
Caution
●Although the F340A package is designed to absorb shock sufficiently during shipping, re-
use of the same packaging materials may damage the indicator when shock is encountered.
When sending this product to us for repair and so on, package it using sufficient shock-
absorbing materials.
●Dispose of as industrial waste.
Events that may cause injury to personnel
or material damage in the event of misuse.
Transportation precautions
Disposal precautions

CONTENTS
V
CONTENTS
1．FUNCTIONAL DESCRIPTIONS ................................................................... 1
1-1．Front Panel .......................................................................................... 1
1-1-1．Status Display ............................................................................ 1
1-1-2．Numerical Display ...................................................................... 2
1-1-3．Setting Key Pad ......................................................................... 2
1-2．Rear Panel ........................................................................................... 4
1-2-1．Protective Ground ...................................................................... 4
1-2-2．Frame Ground ............................................................................ 4
1-2-3．Option Slot ................................................................................. 4
1-2-4．AC Power Input Terminal Block ................................................. 4
1-2-5．Signal Input/Output Terminal Block ........................................... 5
2．CONNECTION .............................................................................................. 7
2-1．Connecting to Cage Clamp Terminal Block ......................................... 7
2-2．Connecting Strain Gauge Sensor ........................................................ 8
2-3．Connecting Power Input Terminal ........................................................ 9
2-4．Connecting SI/F ................................................................................. 10
2-5．Connecting High / Low Limit Relays .................................................. 11
2-6．Connecting Hold and Digital Zero Signals ......................................... 12
2-7．Connecting Analog Monitor Output (VOL OUT) ................................. 13
3．SETTING MODE CONFIGURATION .......................................................... 14
3-1．Selection of Setting Items .................................................................. 14
3-2．Display of Setting Items ..................................................................... 16
3-3．List of Values ..................................................................................... 17
3-4．Setting Procedure .............................................................................. 19
4．CALIBRATION ............................................................................................ 20
4-1．Equivalent Input Calibration Procedure ............................................. 21
4-2．Actual Load Calibration ...................................................................... 26
5．SETTING OF FUNCTIONS ......................................................................... 30
5-1．High /Low Limit Value ........................................................................ 30

CONTENTS
VI
5-2．High / Low Limit Comparator Mode ................................................... 32
5-3．Hysteresis .......................................................................................... 33
5-4．Digital Offset ...................................................................................... 35
5-5．Near Zero ........................................................................................... 36
5-6．Digital Filter ........................................................................................ 37
5-7．Analog Filter ....................................................................................... 38
5-8．Motion Detect ..................................................................................... 39
5-9．Zero Tracking ..................................................................................... 41
5-10．Hold Mode ........................................................................................ 43
5-11．Automatic Printing ............................................................................ 44
5-12．Hold Value Printing .......................................................................... 46
5-13．LOCK ............................................................................................... 47
5-14．Scale Division .................................................................................. 48
5-15．Display Frequency ........................................................................... 49
5-16．Excitation Voltage ............................................................................ 50
6．HOLD FUNCTION ...................................................................................... 51
6-1．Peak Hold .......................................................................................... 51
6-2．Sample Hold Operation (Digital Hold) ................................................ 53
7．DIGITAL ZERO FUNCTION ........................................................................ 55
8．BCD DATA OUTPUT .................................................................................. 56
8-1．Connector Pin Assignment ................................................................ 56
8-2．Logic Switching .................................................................................. 56
8-3．Equivalent Circuit ............................................................................... 57
8-4．Signal Timing ..................................................................................... 58
8-5．BCD Data Update Rate Selection ...................................................... 59
9．RS-232C INTERFACE ................................................................................ 60
9-1．
Communication Specifications ........................................................... 60
9-1-1．Standard .................................................................................. 60
9-1-2．Connector Pin Assignment ...................................................... 61
9-1-3．About Cables ........................................................................... 61
9-2．Setting RS-232C Interface ................................................................ 62

CONTENTS
VII
9-3．Communication Mode ........................................................................ 63
9-4．Communication Format ...................................................................... 63
10．D/A CONVERTER ..................................................................................... 68
10-1．Voltage Output (DAV)
(Depending on the request at the time of order.) ............................. 68
10-1-1．Obtaining Voltage Output Signal ............................................ 69
10-1-2．Setting of D/A Zero and Gain ................................................. 69
10-1-3．About D/A Resolution ............................................................. 70
10-2．Current Output (DAI)
(Depending on the request at the time of order.) ............................. 71
10-2-1．Obtaining Current Output Signal ............................................ 72
10-2-2．Setting of D/A Zero and Gain ................................................. 72
10-2-3．About D/A Resolution ............................................................. 73
10-3．Setting D/A Zero Full Scale .............................................................. 74
10-4．About D/A Output Error .................................................................... 75
11．DC POWER SOURCE .............................................................................. 76
12．OVERSCALE/ERROR DISPLAYS ............................................................ 77
12-1．Overscale Display ............................................................................ 77
12-2．Calibration Error Display .................................................................. 77
12-3．Other Error Display .......................................................................... 77
13．SELF-CHECK FUNCTION AND INITIALIZATION .................................... 78
13-1．Self-Check ....................................................................................... 78
13-2．Initialization ...................................................................................... 80
13-3．F340A Block Diagram ...................................................................... 82
14．DIMENSIONS ........................................................................................... 83
15．SPECIFICATIONS .................................................................................... 84
15-1．Analog Section ................................................................................. 84
15-2．Indicator Section ............................................................................. 85
15-3．Setting Section ................................................................................. 85
15-4．External Signals ............................................................................... 85
15-5．Interface ........................................................................................... 85

CONTENTS
VIII
15-6．Option .............................................................................................. 85
15-7．General Specifications ..................................................................... 86
15-8．Accessories ...................................................................................... 87
16．CONFORMITY TO EC DIRECTIVES ....................................................... 88

1.FUNCTIONAL DESCRIPTIONS
1
1. FUNCTIONAL DESCRIPTIONS
1-1. Front Panel
1-1-1. Status Display
The F340A status is indicated. Setting items are indicated when setting.
HI: This LED turns on when the indicated value is larger than the set value of the high limit
(indicated value > high limit)
Operation of the high limit relay is on.
OK: This LED turns on when the indicated value is smaller than the set value of the high
limit and larger than the set value of the low limit
(low limit ≦indicated value ≦high limit)
LOW: This LED turns on when the indicated value is smaller than the set value of the low limit
(indicated value < low limit)
Operation of the low limit relay is on.
PEAK: This LED is blinking when the Peak Hold function is activated.
HOLD: This LED turns on when the indicated value is the held value.
HI OK LOW PEAK HOLD
F340A DIGITAL
INDICATOR
HOLD
ZERO
ESC
DOWN
SEL
ENT
UP
FNC
SHIFT
CAL
GAIN
Status Display
Numerical Display
Setting Key Pad

1.FUNCTIONAL DESCRIPTIONS
2
1-1-2. Numerical Display
The three types of display are provided.
1) Indicated value
2) Set value
3) Overflow display
- Minus overflow of the A/D converter (-LOAD)
- Plus overflow of the A/D converter (LOAD)
- Indicated value overflowed (indicated value < -19999) (OFL1)
- Indicated value overflowed (indicated value > 19999) (OFL2)
1-1-3. Setting Key Pad
These are keys for commanding settings and operations.
Increments by one the numeric in the blinking digit of the setting item selection
or set value.
Decrements by one the numeric in the blinking digit of the setting item
selection or set value.
Enters the setting mode. Setting mode “F1” is indicated.
This key sets a decimal point in the span calibration.
Enters the actual load calibration mode.
Select the setting mode number and the blinking digit of the setting value in
setting.
Enters the equivalent input calibration mode.
Inputs the minus sign in setting.
Validates setting items and set values.
UP
DOWN
FNC
SEL
SHIFT
CAL
ENT
FNC
Indicated value display Setting mode “F1” display

1.FUNCTIONAL DESCRIPTIONS
3
Starts the Hold function. To cancel the Hold function, press key
again.
Forcibly resets the indicated value to zero (digital zero function).
When the calibration LOCK is turned off, the digital zero function is not
activated using this key.External DZ input is also disabled.
Cancels setting and returns to the indicated value display.
HOLD
ZERO
ESC
HOLD
Setting in progress Indicated Value display
ESC

1.FUNCTIONAL DESCRIPTIONS
4
1-2. Rear Panel
1-2-1. Protective Ground
Be sure to ground the protective ground terminal to prevent electric shocks.
1-2-2. Frame Ground
Please ground the frame ground terminal to prevent failures due to static electricity.
(The frame and the frame ground terminal are conducted.)
It may be better to remove depending on the environment of the installation location.
1-2-3. Option Slot
One option board can in stall in the option slot.
- BCD Parallel data output (BCO)
- RS-232C Interface (232)
- D/A Converter (voltage output) (DAV)
- D/A Converter (current output ) (DAI)
1-2-4. AC Power Input Terminal Block
Connect AC power code. The input voltage is 100V-240V AC.
The frequency is 50/60Hz.
Frame Ground
Signal Input/Output
AC Input
Option Slot
Terminal Block
Terminal Block
Protective Ground

1.FUNCTIONAL DESCRIPTIONS
5
1-2-5. Signal Input/Output Terminal Block
This terminal block is used for input/output of control signals, SI/F data output, and input of strain
gauge sensor signals.
- Terminal block Assignment
1・2: Two-wire serial interface (SI/F) for connecting printers and external display
from UNIPULSE.
This interface has no polarity and can connect up to three external devices.
Use parallel two-core cables or captire cables.
3～6: Output terminals of the high/low limit relays.
3 .......... High limit relay (N/O)
4 .......... High limit COM
5 .......... Low limit relay (N/O)
6 .......... Low limit COM
7・8: Terminals for inputting hold signals
7 .......... Hold input
8 .......... COM
MADE IN JAPAN
1
11
12
13
14
15
2
3
4
5
6
7
8
9
10
SI/F
N/O
COM
High limit relay
Low limit relay
Hold input
COM
DZ input
Analog monitor output
Analog COM
＋EXC
－SIG
－EXC
＋SIG
SHIELD
N/O
COM
Strain gauge
sensor input
Connect the shield cable of the sensor.

1.FUNCTIONAL DESCRIPTIONS
6
8・9: Terminals for inputting digital zero signals. Available in LOCK ON only.
9 .......... DZ input
8 .......... COM
10・11: Terminal for output of a voltage proportional to the sensor input.
Output voltage is approx. 2V per 1mV/V (sensor input).
10 ........ Voltage output (0 to Approx. ±6V)
11......... COM
12 ～15: Terminal for connecting a strain gauge sensor
12 ........ +EXC
13 ........ -SIG
14 ........ -EXC
15 ........ +SIG

2.CONNECTION
7
2. CONNECTION
2-1. Connecting to Cage Clamp Terminal Block
1. Strip the casing 0.2in (6mm) on the cable to be connected.
2. Twist the bare wire to fit the terminal hole.
3. Insert the supplied screwdriver into the upper hole and lift upward.
4. Insert the twisted wires into the lower hole.
5. Make sure cable is clamped securely and does not come out with a slight tug.
0.2in
- Cable can be from 24 to 14AWG (0.2 to 2.5mm2)
- It is not necessary to solder the cable wires or to fix a solderless terminal.
- If several cables to be inserted to the same hole,twist those cable wires
together and insert.
Request

2.CONNECTION
8
2-2. Connecting Strain Gauge Sensor
- 4-wire sensor
- 6-wire sensor
- Cable colors of sensors
Cable colors of sensors may differ from one manufacturer to another (it may even differ from one
model to another for some products). Refer to the sensor manual (or data sheet) and check signal
names and colors in order to connect the cables correctly.
(+EXC)
(-EXC)
(+SIG)
(-SIG)
(SHIELD)
＋IN
－OUT
－IN
＋OUT
12
13
14
15
F340A
(+EXC)
(-EXC)
(+SIG)
(-SIG)
(SHIELD)
＋IN
－OUT
－IN
＋OUT
12
13
14
15
F340A

2.CONNECTION
9
2-3. Connecting Power Input Terminal
AC spec.
Connect AC power code. The input voltage is 100V-240V AC. The frequency is 50/60Hz.
Before connecting cables to the terminal block, put on climp-style terminals to the cables as shown
in the figure so that the cables tips might not straggle.
1) Make sure that no power is applied.
2) Remove the screws (two), and remove the
terminal block cover.
3) Remove the two screws (M3) at the terminal
block..
4) Align the solderless terminals with the screw
holes, and then tighten the screws.
L : Black
N:White
5) Install the terminal block cover, and fix it with the screws (two).
6) Remove the screws (M4) of the protective ground, align the crimp contacts with the screw holes,
and then tighten the screws.
: Green/Yellow
DC spec. (Depending on the request at the time of order)
Connect the positive (+) side of the power source to the red screw side of the terminal block on the
back of the F340A, and its negative (-) side to the black screw side. The input voltage is 12V-24V
DC.
1) Make sure that no power is applied.
2) Remove the screws (two), and remove the
terminal block cover.
3) Remove the two screws (M3) at the terminal
block..
4) Align the solderless terminals with the screw
holes, and then tighten the screws.
＋: Red screw
－: Black screw
5) Install the terminal block cover, and fix it with the screws (two).
6) Remove the screws (M4) of the protective ground, align the crimp contacts with the screw holes,
and then tighten the screws.
: Green/Yellow
6mm or less
Black
White
Green/Yellow
6mm or less
Red
Black
Green/Yellow

2.CONNECTION
10
2-4. Connecting SI/F
Two-wire serial interface (SI/F) for connecting printers and external display from UNIPULSE.
This interface has no polarity and can connect up to three external devices.
A two-core parallel cable or a cabtyre cable (Wire with covering thickened for construction) may be
used for connection.
When a two-core parallel cable or a cabtyre cable is used, the transmitting distance is
approximately 30m (32.8yds). When a two-core shielded twisted pair cable is used, the transmitting
distance is approximately 300m (328yds).
Do not parallel it with AC lines and high-voltage lines. It may cause of malfunction.
CAUTION
Be aware that the voltage drops depending on the wire thickness and length.
Also, never input an AC power source. Doing so will cause a failure.
Converter
Display
Printer
SI/F
２
１
←Inside Outside →
F340A

2.CONNECTION
11
2-5. Connecting High / Low Limit Relays
- Connecting External Load
[ High limit relay ]
N/O
COM
３
４
Load
Varistor Spark Killer
AC
３
４
Spark Killer
DC
←Inside Outside →
←Inside Outside →
COM
N/O
Load
F340A
F340A
AC Power Supply
DC Power Supply
N/O
COM
５
６
←Inside Outside →
F340A
[ Low limit relay ]
Connect a spark killer as
near the load as possible.
Connect a diode as
near the load as possible.
Power Supply
Power Supply
N/O
COM
５
６
←Inside Outside →
F340A
[ Low limit relay ]
Rating is 250V AC and 0.5A.
Rating is 30V DC and 0.5A.
CAUTION
Overvoltage and overcurrent may cause breakdown of the relay as well as
shortening its life.
It is recommended to connect a spark killer etc. to the connected load according to
AC/DC (refer to the connection examples). With a noise killer, you can make the
life of the relay longer as well as making it resistible against noise.
Never short-circuit the load.
Should you do it, the equipment will break down.