Yokogawa VJUK Specifications

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User’s Manual

Model VJUK Limit Alarm for Universal Input

Thank you for purchasing the JUXTA Signal Conditioner. Please read through this manual before use for correct handling.

IM 77J01U21-01E

3rd Edition: Mar. 2021

2-9-32, Naka-cho Musashino-shi, Tokyo 180-8750 Japan

You can download the latest manuals from the following website:

http://www.yokogawa.com/ns/juxta/im/

CAUTIONARY NOTES FOR SAFE USE OF THE PRODUCT

This User’s Manual should be carefully read before installing

and operating the product. Please keep this User’s Manual for future reference.

For more information of the safety precautions, please refer to the “Precautions on the Use of the JUXTA Series (IM 77J01A00-91Z1)”.

The related manuals and general specications

are shown in the table below.

Precautions on the Use of the JUXTA Series (User’s Manual) Model VJUK Limit Alarm for Universal Input (User’s

Manual)

Model VJUK Limit Alarm for Universal Input (General

Specifications)

Doc. Name Doc. Number

IM 77J01A00-91Z1 IM 77J01U21-01E

(This manual)

GS 77J01U21-01E

User’s manuals in the above table are essential parts of the

product; keep it in a safe place for future reference. This manual is intended for the following personnel;

• Engineers responsible for installation, wiring, and maintenance

of the equipment.

• Personnel responsible for normal daily operation of the

equipment.

The following symbol is used on the product and in this manual to

ensure safe usage.

WARNING

Calls attention to actions or conditions that could cause serious or fatal injury to the user, and indicates precautions that should be taken to prevent such occurrences.

CAUTION

Calls attention to actions or conditions that could cause injury to the user or damage to the instrument or property and indicates precautions that should be taken to prevent such occurrences.

QR Code

The product has a QR Code pasted for e󰀩cient plant

maintenance work and asset information management.

It enables conrming the specications of purchased products

and user’s manuals.

For more details, please refer to the following URL.

https://www.yokogawa.com/qr-code

* QR Code is a registered trademark of DENSO WAVE

INCORPORATED.

CHECKING THE PRODUCT SPECIFICATIONS AND THE CONTENTS OF PACKING

(1) Model and Specications Check Check that the model and specications indicated on the

nameplate attached to the side face of the main unit are as

ordered. (2) Contents of the Package Check that the package contains the following items:

• VJUK: 1 unit

Standard Accessories:

• Tag number label: 1 pc.

• Range label: 1 sheet (when model code 1 or 3 is specied)

• RJC sensor (A1167HT): 1 pc. (when optional code RJCN is

not specied) (when model code 3 is specied)

• Input resistor (shunt resistor): 1 pc. (100 Ω: E9786WD) (when model code 1 and input signal A are specied)

• Input resistor (shunt resistor): 1 pc. (100 Ω: E9786WD) (when the /R100 option is specied)

• Input resistor (shunt resistor): 1 pc. (250 Ω: E9786WE) (when the /R250 option is specied)

• User’s manual (IM 77J01U21-01E, this manual): 1 copy

• User’s manual (IM 77J01A00-91Z1): 1 copy

GENERAL

The VJUK is a plug-in type alarm setting device that receives voltage/current, thermocouple/RTD, or mV signal as an input signal.

• Various parameters can be changed from a PC (VJ77).

MODEL AND SUFFIX CODES

Model Su󰀩x codes Description

VJUK -x 2 x -x T 0 0 /x Limit Alarm for Universal Input

Model code

Output

conguration

Power supply

Input signal

Output signal T

Fixed code 0 Always 0 Fixed code 0 Always 0

Option

*1: Input signal can be selected from 6, A, and U. *2: Input signal is xed to A. *3: Input signal is xed to U. *4: Operating range: 85 to 264V AC/DC *5: Operating range: 12 to 36V DC *6:

*7: When option code /C0 or /FB is specied, the conformity to the safety

*8: The /RJCN option can be selected when the model code is 3. *9:

-1

-2

-3 Temperature input type

2 2 outputs

6 100-240 V AC/DC 7 15-30 V DC

-6 1 to 5 V DC

-A 4 to 20 mA DC

-U

When the model code is 1, the input signal is voltage and current.

When the model code is 3, the input signal is thermocouple, RTD, and mV signal.

and EMC standards is excluded. CE marking is not applicable.

The /R100 and /R250 options can be selected when the input signal is U.

Note: An exclusive User’s Manual might be attached to the

products whose su󰀩x codes or option codes contain the code “Z” (made to customers’ specications). Please read it along

with this manual.

DC input type (voltage and

current input)

DC current input type (with transmitter power supply)

Thermocouple, RTD, or mV signal; voltage or current Alarm output (2 relay contact

points)

No socket (with socket if not

/SN

specied)

/C0 HumiSeal coating /FB Fuse bypass

No RJC sensor (with RJC

/RJCN

sensor if not specied)

/R100 With 100 Ω input resistor /R250 With 250 Ω input resistor /DF Fahrenheit display function

4.5 or more

Mounting Dimensions

Main unit-fixing screw

Main unit

DIN rail

Slide lock

Fit into here

Recommended crimp-on

1. MOUNTING METHODS

CAUTION

● Plug/disconnect the main unit into/from the

socket vertically to the socket face. Otherwise the terminals may bend and it may cause bad contact.

● The converter shall not tilt 5 degrees or more in

either direction when installed.

● When the converter is not connected to the socket,

it is necessary to protect the socket against ingress of dust to the connector part.

● Keep this product in a conductive bag when

plugged out, during transport or storage.

1.1 Wall Mounting

Loosen the main unit-xing screw to disconnect the main unit from the socket. Next, anchor the socket onto the wall with screws. Then, plug the main unit into the socket and secure the main unit with the main unit-xing screw.

Mounting screws

Threaded hole for fixing the main unit

Socket (Part no.: T9093FL)

59±0.3

29.5 or more

22±0.2

2-M4 or 2-ø

Unit: mm

1.2 DIN Rail Mounting

Locate the VJUK so that the DIN rail ts into the upper part of the DIN-rail groove at the rear of the socket, and fasten the socket

using the slide lock at the lower part of the socket.

DIN rail

Push

(Rear of socket)

Socket (Part no.: T9093FL)

1.3 Mounting Using a Multi-mounting Base

For mounting using a multi-mounting base, see the user’s manual for VJCE (VJ Mounting Base).

1.4 Using a Duct

Wiring duct should be installed at least 30 mm away from the top

and bottom faces of the main unit.

2. INSTALLATION AND ENVIRONMENTAL CONDITIONS

• Avoid the following environments for installation locations: Areas with vibrations, corrosive gases, dust, water, oil, solvents, direct sunlight, radiation, a strong electric eld, and/or a strong magnetic eld, direct radiant heat, wind, temperature uctuation, 2,000 m or more above sea level,

outdoors.

• If there is any risk of a surge being induced into the power line

and/or signal lines due to lightning or other factors, a dedicated

lightning arrester should be used as protection for both the

product and a eld-installed device.

• Use indoors at an altitude of 2000 m or less.

• Operating temperature/humidity range: -10 to 55°C (-10

to 45°C for side-by-side mounting*)/5 to 90%RH (no

condensation)

* If the previous model (style S3.xx earlier) is installed

together, the ambient temperature is 0 to 40°C.

• Continuous vibration: (at 5 to 9 Hz) Half amplitude of 3 mm or less (at 9 to 150 Hz) 9.8m/s2 or less, 1 oct/min for 90 minutes

each in the three axis directions

• Impact: 98 m/s2 or less, 11 ms, 3 axes, 6 directions, 3 times each

3. EXTERNAL WIRING

WARNING

● To avoid the risk of an electric shock, turn o󰀨 the

power supply and use a tester or similar device to ensure that no power is supplied to a cable to be connected, before carrying out wiring work.

● Do not operate the product in the presence of

ammable or explosive gases or vapors. To do so is highly dangerous.

● Use of the product ignoring the specications may

cause overheating or damage. Before turning on the power, ensure the following:

• Power supply voltage and input signal value

applied to the product should meet the required

specications.

• The external wiring to the terminals and wiring to

ground are as specications.

Wiring should be connected to the terminals on the socket of

the product. The terminals for external connections are of M3

screws. Use crimp-on terminal lugs for connections to the

terminals.

• Recommended cables: A nominal cross-sectional area of

Input signal (when the model code is 1)

0.5 mm

or thicker for signal cables, and that of 1.25 mm2 or

thicker for power cables.

Input signal

Input

DC voltage/ current standard

R: precision resistor for current output

Power supply

GND

RJC sensor (for thermocouple input)

Signal line

RJC sensor

Terminal screw

L+

N−

(when the model code is 2)

When using internal power

supply

Transmitter

–

3 2

789

1011

When using external power supply

PS+

Transmitter

–

COM

Input signal (when the model code is 3)

−

Make the wiring resistance of RTD input terminals 1and 3 the same.

Alarm-2 signal

Alarm output

ALM2

(N.O)

COM

Alarm-1 signal

Alarm output

ALM1

(N.O.)

COM

lug size

5.5 or less

–

RTD

(Unit: mm)

When using as an isolator

Transmitter

–

Thermocouple

CAUTION

● Connect the RJC sensor at the correct position as

shown above. Otherwise temperature cannot be measured correctly.

● Connect the RJC sensor so that it overlaps the input

signal line.

● Handle the RJC sensor lead with care to prevent

disconnection.

● The power line and input/output signal lines should

be installed away from noise-generating sources. Otherwise accuracy cannot be guaranteed.

● Make sure to earth ground the ground terminal

through minimum resistance. The length and thickness of the grounding cable should be as short and thick as possible. Directly connect the lead from the ground terminal (terminal no. 8) of the product to the ground. Do not carry out daisychained inter-ground terminal wiring.

COM

−

RJC

ø3.2 to 3.5

5.5 or more

IM 77J01U21-01E 3rd Edition

Input signal (X)

Output signal

(0.2% fixed)

● The product is sensitive to static electricity;

exercise care in operating it. Before you operate the product, touch a nearby metal part to discharge static electricity.

● If an inductance (L) load such as auxiliary relays or

solenoid valves is used, always insert a spark killer for diminishing sparks, such as a CR lter or a diode in parallel with the inductance load. Otherwise a malfunction or relay failure may occur. Refer to the following guidelines for a capacitor and resistor:

• C: 0.5 to 1 µF with respect to a contact current of 1 A

• R: 0.5 to 1 Ω with respect to a contact voltage of 1 V

● If the ambient temperature is 50 °C or more, please

use the cable that the rated temperature is 70 °C or more.

4. DESCRIPTION OF FRONT PANEL AND

CONNECTION OF SETTING OOLS

4.1 Front Panel

The communications connector on the front panel is used for

setting up parameters using a PC (VJ77 PC-based Parameters

Setting Tool). The alarm indicator lamps for alarm 1 and alarm 2 light up if an alarm occurs.

Communication connector

Alarm indicator lamp

(for alarm 1)

Alarm indicator lamp

(for alarm 2)

4.2 Connector for Communication

Connect the modular jack conversion adapter (E9786WH) to the JUXTA communication cable with 5-pin connector (F9182EE)

and then connect this adapter to the communication connector of

JUXTA.

< How to connect with the setting tool>

JUXTA communication

cable with 5-pin JHT200 Handy Terminal

PC with the VJ77 installed

connector

Dedicated adapter

Dedicated cable

• Use the VJ77 of version R2.02.01 or later.

Modular jack conversion adapter

JUXTA VJ Series

5. SETTING PARAMETERS

Set the parameters using a PC (VJ77 PC-based Parameters Setting Tool) or the Handy Terminal (JHT200). Refer to “7. LIST OF PARAMETERS” in this manual and the user’s manual for VJ77 PC-based Parameters Setting Tool (IM 77J01J77-01E).

CAUTION (for the model code 3 only)

For the input sensor type, input type and temperature

unit, the default values of the input range, alarm setpoints and others are pre-dened according to the values to be

selected. Set the parameters as follows.

1. Settings related to inputs: Set the parameters in order starting with (1).

(1) Input sensor type (2) Input type for temperature input

(3) Temperature unit for temperature input

(4) Input range

2. Before setting the parameters related to alarm output

and making the adjustments such as wiring resistance

correction, set the parameters described in 1 above.

If setting the parameters (1) to (3) in 1 above after set-

ting the parameters related to alarm output or making

the adjustment, the setpoint will be changed or the

adjustment will be reset to the default.

5.1 Settings Related to Input and Output

5.1.1 Input Sensor Type and Input Type

• For the model code 1

Set by selecting input type from among VOLTS (DC voltage)

and CURRENT (DC current) in [D12: INP TYPE].

• For the model code 3

Select the input sensor type in [D07: SENSOR TYPE]. Select

TC for thermocouple input, mV for mV input and RTD for RTD input. When you have selected TC in D07, select the TC type to use in [D08: TC TYPE]. When you have selected RTD in D07, select the RTD type to use in [D09: RTD TYPE]. Furthermore, for thermocouple or RTD input, select the

temperature unit in [D21: UNIT].

5.1.2 Input Range

Set the 0% value of input range in [D24: INPUT1 L_RNG]

and the 100% value of input range in [D25: INPUT1 H_RNG] numerically within the following specied range.

Input type and Operation guaranteed range (for the model code 3 only)

JIS C 1602, IEC 60584-1 (ITS-90) TYPE K -270 to 1372 JIS C 1602, IEC 60584-1 (ITS-90) TYPE T -270 to 400 JIS C 1602, IEC 60584-1 (ITS-90) TYPE E -270 to 1000 JIS C 1602, IEC 60584-1 (ITS-90) TYPE J -210 to 1200 JIS C 1602, IEC 60584-1 (ITS-90) TYPE R -50 to 1768 JIS C 1602, IEC 60584-1 (ITS-90) TYPE S -50 to 1768 JIS C 1602, IEC 60584-1 (ITS-90) TYPE B 0 to 1820 JIS C 1602, IEC 60584-1 (ITS-90) TYPE N -270 to 1300 Type W3(Note 1) 0 to 2300 Type W5(Note 2) 0 to 2300

JIS C 1604, IEC 60751(ITS-90)PT100 -200 to 850 JIS C 1604:1989, DIN(IPTS-68) Pt100 -200 to 660 JIS C 1604:1989, JPt100 -200 to 510 JIS C 1604:1981, Pt50 -200 to 649

mV -10～100

Note 1: W3 is the abbreviation of W97Re3-W75Re25 (tungsten97 % rhenium 3

Note 2: W5 is the abbreviation of W95Re5-W74Re26 (tungsten95 % rhenium 5

5.1.3 Square Root Extraction Function (for the model code 2 only)

Select SQR in [D41: LINEARIZE] to set “with square root

extraction function.”

5.1.4 Low-cut Function (for the model code 2 only)

Set the low-cut point in [D42: LOW CUT] numerically when

“with square root extraction function” is set.

• Setting range: 0 to 100% of input range

• Setting resolution: 0.1%

(Y)

Hysteresis

5.1.5 Software Filter

Set the software lter in [D57: S/W FILTER]. OFF, LOW, MIDDLE, HIGH (default value: OFF) When LOW, MIDDLE, or HIGH is selected, a rst-order lter

equivalent to 100 ms, 300 ms, or 1 s is inserted in the input.

Input type (TC) Measurable range (°C)

Input type (RTD) Measurable range (°C)

Input type (mV) Measurable range (mV)

% - tungsten75 % rhenium25 %) ASTM E988 Standard

% - tungsten74 % rhenium 26 %) ASTM E988 Standard

Y=X

Low-cut point

IM 77J01U21-01E 3rd Edition

mV Input

the same terminal of one side.

RTD Input

JHT200

Thermocouple Input

Normal

5.1.6 Setting Burnout Action (for the model code 3 only)

Set the burnout action in [D39:BURN OUT]. Set “OFF”, “UP”,

or “DOWN.”

CAUTION

• Changing the burnout action direction resets the input

adjusted value and the wiring resistance corrected value.

• Changing the input range resets the input adjusted

value.

• Execute the wiring resistance correction when the

burnout action direction or input wiring is changed.

5.1.7 Wiring Resistance Correction (for the model code 3 only)

When an error occurs due to the inuence of the input wiring

resistance, the input can be corrected. Apply a stable input as shown below and select EXECUTE in [P01: WIRING R]. The

correction is also required when the direction of burnout action

is changed from UP (DOWN) to DOWN (UP) or the wiring for

input is changed.

VJ77

Short-circuit at the cable end.

Voltage

generator

Two signal lines are connected to

VJUK

VJ77

JHT200

VJ77

JHT200

VJUK

Short-circuit at the cable end.

5.1.8 External Input Resistance Correction (for the model code 1 only)

For current input, set the external resistance to [D13: IN

RESIST]. There is a di󰀨erence between this value and the

actual external resistance. If this di󰀨erence causes an error,

the input can be corrected.

To perform correction, wire as shown in the gure below, apply

a stable input equivalent to 100%, and set [P40:RESISTOR ADJ] to EXECUTE.

If you need perform correction again such as when the

external resistance is changed, reset the correct value. To do so, set [P40: RESISTOR ADJ] to RESET.

A current generator

VJHK

R：External resistor

5.2 Settings Related to Alarm Output

5.2.1 Alarm Setpoint

Set the alarm-1 setpoint and alarm-2 setpoint numerically

in [E01: SET POINT1] and [E02: SET POINT2] for thermocouple input and RTD input or in [E03: SET POINT1] and [E04: SET POINT2] for mV input. Set them in [°C/K] for

temperature input or in [%] for mV input.

• Setting range: 0 to 100% of input range

• Setting resolution: 0.1% (for mV input), 4 signicant digits

(for temperature input)

5.2.2 Direction of Alarm Action

Select the direction of alarm-1 action and that of alarm-2

action from among HIGH ALM (high-limit alarm) and LOW ALM (low-limit alarm) in [E05: ALM1 ACTION] and [E06:

ALM2 ACTION].

• To activate alarm status when input signal ≥ alarm setpoint,

select HIGH ALM.

• To activate alarm status when input signal ≤ alarm setpoint, select LOW ALM.

5.2.3 Hysteresis

Set the alarm-1 hysteresis and alarm-2 hysteresis numerically

in [E07: HYSTERESIS1] and [E08: HYSTERESIS2] for thermocouple input and RTD input or in [E09: HYSTERESIS1] and [E10: HYSTERESIS2] for mV input.

Hysteresis is a value added to the alarm setpoint in order for

an alarm status to be released (to normal) after the alarm

status has been activated. The alarm status will be released in the following conditions, depending on the direction of alarm

action.

* When HIGH ALM (high-limit alarm) is set: Alarm is released

when input signal < (alarm setpoint - hysteresis).

* When LOW ALM (low-limit alarm) is set: Alarm is released

when input signal > (alarm setpoint + hysteresis).

Set them in [°C/K] for temperature input or in [%] for mV input.

• Setting range: 0 to 100% of input range

• Setting resolution: 0.1% (for mV input), 4 signicant digits

(for temperature input)

5.2.4 Alarm ON Delay and Alarm OFF Delay

Set the alarm-1 ON delay and alarm-2 ON delay numerically in

[E11: ON DELAY1] and [E12: ON DELAY2]. Set the alarm-1 OFF delay and alarm-2 OFF delay numerically in [E13: OFF

DELAY1] and [E14: OFF DELAY2].

An alarm ON delay is a delay time from the establishment of

alarm conditions to its output; an alarm OFF delay is a delay time from the establishment of return-to-normal conditions to

its output.

• Setting range: 0 to 999 seconds

• Setting resolution:

to be added to the set time to prevent wrong operation.)

1 second (However, about 0.2 second is

For example, when an alarm ON delay is set to 1 second,

alarm output is generated if alarm status continues for 1

second or more after the input value exceeds the alarm setpoint. Furthermore, when an alarm OFF delay is set to 2 seconds, alarm output is released if normal condition continues for 2 seconds or more after the input value has

returned to normal from the alarm status.

5.2.5 Direction of Relay Action

Select the direction of relay energizing in alarm-1 normal

condition and alarm-2 normal condition from among NRM DEENERGIZED (de-energized under normal condition) and NRM ENERGIZED (energized under normal condition) in [E15: RL1

ACTION] and [E16: RL2 ACTION].

6. DESCRIPTION OF ALARM ACTIONS

This chapter describes examples of alarm actions under the following conditions.

Item Alarm 1 Alarm 2

Direction of alarm

action

Alarm setting E03: SET POINT1 80% E04 : SET POINT2 15%

Hysteresis E09: HYSTERESIS1 10% E10 : HYSTERESIS2 5%

Alarm ON delay E11: ON DELAY1 1 sec E12 : ON DELAY2 3 sec

Alarm OFF delay E13: OFF DELAY1 2 sec E14 : OFF DELAY2 4 sec

Description of

alarm actions

Figure 6.1

Alarm conditions established

[％]

100

[1]

1 s.

Alarm-1 ON delay

Alarm-2 hysteresis (5%)

20 15

Alarm-1 action

Normal

Alarm-2 action

Parameter Setpoint Parameter Setpoint

E05: ALM1 ACTION High-limit

The alarm is output if the

condition where the input value is 80% or more of high-limit

alarm continues for 1 second or more.

After the alarm is output, when

the condition where the input

value is less than 70% of high-limit alarm continues for 2 seconds or more, the status

returns to normal.

[1] Alarm status does not continue for more than 1 second after the

alarm conditions are established at alarm 1.

[2] Normal status does not continue for more than 2 seconds after

the normal conditions are established at alarm 1.

[3] Alarm status does not continue for more than 3 seconds after the

alarm conditions are established at alarm 2.

[4] Normal status does not continue for more than 4 seconds after

the normal conditions are established at alarm 2.

High-limit alarm ON

Normal conditions established

[2]

Alarm-2 setpoint (15%)

Alarm

2 s.

Alarm-1 OFF delay

High-limit alarm OFF

Normal

Alarm-1 setpoint (80%)

Alarm-1 hysteresis (10%)

Alarm conditions established

[3]

E06: ALM2 ACTION Low-limit

alarm

The alarm is output if the

condition where the input value is 15% or less of low-limit

alarm continues for 3 seconds or more.

After the alarm is output, when

the condition where the input

value is more than 20% of low-limit alarm continues for 4 seconds or more, the status

returns to normal.

Low-limit alarm ON

Alarm-2 ON delay

3 s.

Normal

Normal conditions established

[4]

Alarm

alarm

Low-limit alarm OFF

Alarm-2 OFF delay

4 s.

Elapsed time

IM 77J01U21-01E 3rd Edition

(when the model coded is 1 or 2)

Input

7. LIST OF PARAMETERS

Parameter Display Item

MODEL Model TAG NO Tag no. SELF CHK Self-check result

A DISPLAY1 Display 1

A01 INPUT1 Input value 1 A09 OUTPUT1 Output value 1 A15 ALM1 STATUS Alarm-1 status A16 ALM2 STATUS Alarm-2 status A54 STATUS Status A56 REV NO Rev. no. A58 MENU REV MENU REV A60 SELF CHK Self-check result

B DISPLAY2 Display 2

B01 INPUT1 Input value 1 B09 OUTPUT1 Output value 1 B15 ALM1 STATUS Alarm-1 status B16 ALM2 STATUS Alarm-2 status B60 SELF CHK Self-check result

D SET (I/O) Setting (I/O)

D01 TAG NO.1 Tag no. 1 D02 TAG NO.2 Tag no. 2 D03 COMMENT1 Comment 1 D04 COMMENT2 Comment 2 D07 SENSOR TYPE D08 TC TYPE D09 RTD TYPE RTD type (when the model code is 3.) D12 INP TYPE Input type (when the model code is 1.) D13 IN RESIST D21 UNIT Temperature unit D24 INPUT1 L_RNG Input 1 low range D25 INPUT1 H_RNG Input 2 high range D39 BURN OUT Burnout (when the model code is 3.) D41 LINEARIZE Linearize (when the model code is 2.) D42 LOW CUT Low cut (when the model code is 2.) D57 S/W FILTER Software lter D59 NMRR Frequency setting D60 SELF CHK Self-check result

E SET (I/O) Setting (alarm output)

E01 SET POINT1 Alarm-1 setting (Temperature) E02 SET POINT2 Alarm-2 setting (Temperature) E03 SET POINT1 Alarm-1 setting (%) E04 SET POINT2 Alarm-2 setting (%) E05 ALM1 ACTION Direction of alarm-1 action E06 ALM2 ACTION Direction of alarm-2 action E07 HYSTERESIS1 Alarm-1 hysteresis (Temperature) E08 HYSTERESIS2 Alarm-2 hysteresis (Temperature) E09 HYSTERESIS1 Alarm-1 hysteresis (%) E10 HYSTERESIS2 Alarm-2 hysteresis (%) E11 ON DELAY1 Alarm-1 ON delay setting E12 ON DELAY2 Alarm-2 ON delay setting E13 OFF DELAY1 Alarm-1 OFF delay setting E14 OFF DELAY2 Alarm-2 OFF delay setting E15 RL1 ACTION Direction of alarm-1 relay action E16 RL2 ACTION Direction of alarm-2 relay action E60 SELF CHK Self-check result

P ADJUST Adjustment

P01 WIRING R Wiring resistance correction

P04 IN1 ZERO ADJ Zero adjustment of input-1 P05 IN1 SPAN ADJ Span adjustment of input-1 P40 RESISTOR ADJ Adjustment of external input resistance

P60 SELF CHK Self-check result

Q TEST Test

Q01 RJC Q10 ALM1 TEST Forced output (alarm-1) Q11 ALM2 TEST Forced output (alarm-2)

Q60 SELF CHK Self-check result

*1 The Status is displayed for service personnel to see history

records.

*2 There are items not displayed depending on what input

sensor type and output-2 are specied.

*3 The parameters are the items to be set at the factory.

Input sensor type (when the model code is 3.) Thermocouple type (when the model code is 3.)

Input resistance (when the model code is 1.)

(when the

model code is 3.)

(when the model code is 1.)

ON/OFF of RJC (when the model code is 3.)

8. MAINTENANCE

The product enters the operable status as soon as the power is

turned on, but requires 10 to 15 minutes of warm-up to meet the

performance requirements.

8.1 Calibration Apparatus

• A voltage and current generator (YOKOGAWA GS200 or the equivalent): 1

• 6-dial decade resistance box (YOKOGAWA 279301 or equivalent): 1

• Digital Multimeter (YOKOGAWA 7561 or equivalent): 1

• Precision resistor of 250 Ω ±0.01%, 1 W: 1

• Setting tool for adjustment (Refer to "4.2 Connector for Communication" in this manual.)

8.2 Calibration Procedure

1. Connect the instruments as shown in gure below.

(when the model coded is 3)

TC, mV Input

A voltage

generator

decade

resistance

Without SINK current

A voltage

and current

generator

A voltage

and current

generator

2. For the model code is 3 and the input type is TC input.

3. Then, read the input value of Display items, “A01: INPUT1”

4. Take the same procedure for the input signal equivalent to 25,

For alarm output, check the relay action by the alarm indicator

lamp or resistance of output terminals.

● When adjusting the input signal, use the VJ77 parameter

For adjustment using a setting tool, refer to the User’s Manual for setting tool and “7. LIST OF PARAMETERS” in this manual. User’s Manual for VJ77 [Document No.: IM 77J01J77-01E]

and

current

RTD Input

6-dial

box

With SINK current

−

3 2

–

789

1011

Power Supply

1110 8

GND

N–

L+

Alarm 2

ALM2

(N.O.)

COM

ALM1 (N.O.)

COM

–

Alarm 1

–

DMM

• Turn o󰀨 the RJC through the setting tool or handy terminal.

• Use the DC voltage/current standard and apply input

signals (electromotive force) equivalent to 0% of the input to the converter.

For the model code is 3 and the input type is RTD input.

• Use 6-dial decade resistance box and apply input signals (resistance value) equivalent to 0% of the input to the converter.

For other than above. Use the DC voltage/current standard and apply input

signals (electromotive force) equivalent to 0% of the input span to the converter.

using the VJ77 and check that the input value is within the rated accuracy range.

50, 75 and 100% of the input range and check that the input values are within the rated accuracy range.

setting tool.

IM 77J01U21-01E 3rd Edition

9. SAFETY AND EMC STANDARDS

Entrance Cable

The following will be acquired.

Safety:

IEC/EN 61010-1 compliance (CE) IEC/EN 61010-2-030 compliance (CE) CAN/CSA-C22.2 No.61010-1 (CSA) CAN/CSA-C22.2 No.61010-2-030 (CSA) UL61010-1 (CSA NRTL/C) UL61010-2-030 (CSA NRTL/C)

Overvoltage category: II

Pollution degree: 2

Measurement category: O (other) Rated power voltage: 15-30 V DC (±10%) 2.7 W or

100-240V AC/DC (±10%) 50/60 Hz

2.7 W 6.9 VA

Rated voltage (Input signal): ±10 V DC (VJUK-1)

10 V DC (VJUK-2)

±0.15 V DC (VJUK-3) Rated voltage (Alarm output signal) : 30 V DC 1A Rated transient overvoltage: 1500 V (*)

* This is a reference safety standard value for the

measurement Category O. This value is not necessarily

a guarantee of instrument performance.

CAUTION

This instrument is for Measurement Category O (other). Do not use it for measurements in locations falling under Measurement Categories II, III, and IV.

10. ENVIRONMENT STANDARD

EU RoHS directive: EN IEC 63000 (However, when option code /C0 or /FB is specied, CE mark-

ing is not applicable because the product does not comply with the Safety and EMC standards.)

11. TRANSPORT AND STORAGE CONDITIONS

• Temperature: -25 to 70°C

• Temperature change rate: 20°C per hour or less

• Humidity: 5 to 95%RH (no condensation)

CAUTION

Keep this product in a conductive bag when plugged out, during transport or storage.

Internal Wiring

III

Outlet

Measurement

Description Remarks

Yokogawa VJUK Specifications

Specifications and Main Features

Frequently Asked Questions

User Manual

CAUTIONARY NOTES FOR SAFE USE OF THE PRODUCT

CHECKING THE PRODUCT SPECIFICATIONS AND THE CONTENTS OF PACKING

GENERAL

MODEL AND SUFFIX CODES

1. MOUNTING METHODS

1.1 Wall Mounting

1.2 DIN Rail Mounting

1.3 Mounting Using a Multi-mounting Base

1.4 Using a Duct

2. INSTALLATION AND ENVIRONMENTAL CONDITIONS

3. EXTERNAL WIRING

4.1 Front Panel

4.2 Connector for Communication

5. SETTING PARAMETERS

5.1 Settings Related to Input and Output

5.2 Settings Related to Alarm Output

6. DESCRIPTION OF ALARM ACTIONS

7. LIST OF PARAMETERS

8. MAINTENANCE

8.1 Calibration Apparatus

8.2 Calibration Procedure

9. SAFETY AND EMC STANDARDS

10. ENVIRONMENT STANDARD

11. TRANSPORT AND STORAGE CONDITIONS