Omron K3NX Manual de usuario

Process Meter K3NX

Advanced Intelligent Signal

Processor Accepts Voltage/Current

Input

1Programmable through the front panel

or via RS-232C, RS-485, or RS-422

1Programming with easy setup and

calibration

1Multi-range function allows single

Process Meter to cover a wide range of

inputs

1Easy-to-use scaling function with the

key programming method

1Auxiliary power supply (80 mA at

12 VDC)

1NEMA4/IP66 front panel

1UL, CSA, and CE approved

Ordering Information

To order output and communication boards, refer to the separate K31 data sheet called

Output and Communication Boards

. See page 155.

3BASE UNITS

Model Supply

Applicable

Part number

voltage output boards Input type

DC voltage DC current AC voltage AC current

Basic model 100 to 240

VAC K31-C1/C2/C5

K31-T1/T2

K31-B2/B4

K31-L1/L2/L3/

L4/L5/L6/L7/

K3NX-VD1A K3NX-AD1A K3NX-VA1A K3NX-AA1A

Present value LED and front-panel control

keys. Can connect to any output board or,

without an output board, can be used for

display only.

12 to 24

VDC

L8/L9/L10

K31-FLK1/

FLK2/FLK3/

FLK4/FLK5/

FLK6

K3NX-VD2A K3NX-AD2A K3NX-VA2A K3NX-AA2A

Set value LED model 100 to 240

VAC K31-C1/C2/C5

K31-T1/T2

K31-B4

K31-L4/L5/L6/

K3NX-VD1C K3NX-AD1C K3NX-VA1C K3NX-AA1C

Present value LED, set value LED, and

front-panel control keys. Can connect to

relay contact, transistor, or combination

output boards.

12 to 24

VDC

K31-FLK4/

FLK5/FLK6 K3NX-VD2C K3NX-AD2C K3NX-VA2C K3NX-AA2C

Note: “Set Value LED” models must be used with an output board in order for them to operate.

K3NX K3NX

3MODEL NUMBER LEGEND

K3NX - 1 234

Base Units

1, 2. Input Sensors Codes

VD: DC voltage input

AD: DC current input

VA: AC voltage input

AA: AC current input

3. Supply Voltage

1: 100 to 240 VAC

2: 12 to 24 VDC

4. Display

A: Basic Model

C: Set Value LED Display

Specifications

3RATINGS

Supply voltage 100 to 240 VAC (50/60 Hz); 12 to 24 VDC

Operating voltage range 85% to 110% of supply voltage

Power consumption (See Note.) 15 VA max. (max. AC load with all indicators lit)

10 W max. (max. DC load with all indicators lit)

Sensor power supply 80 mA at 12 VDC±10% (Use a power supply of less than 50 VAC or 70 VDC for input signals.)

Insulation resistance 20 MΩmin. (at 500 VDC) between external terminal and case.

Insulation provided between inputs, outputs, and power supply.

Dielectric withstand voltage 2,000 VAC for 1 min between external terminal and case.

Insulation provided between inputs, outputs, and power supply.

Noise immunity ±1,500 V on power supply terminals in normal or common mode ±1µs, 100 ns for

square-wave noise with 1 ns

Vibration resistance Malfunction: 10 to 55 Hz, 0.5-mm for 10 min each in X, Y, and Z directions

Destruction: 10 to 55 Hz, 0.75-mm for 2 hrs each in X, Y, and Z directions

Shock resistance Malfunction: 98 m/s2(10G) for 3 times each in X, Y, and Z directions

Destruction: 294 m/s2(30G) for 3 times each in X, Y, and Z directions

Ambient

Operating --10 to 55°C (14 to 131°F) with no icing

temperature Storage --20 to 65°C(--4to149

°F) with no icing

Ambient humidity Operating 23% to 85% (with no condensation)

Ambient atmosphere Must be free of corrosive gas

EMC Emission Enclosure: EN55011 Group 1 class A

Emission AC Mains: EN55011 Group 1 class A

Immunity ESD: EN61000-4-2:4-kV contact discharge (level 2)

8-kV air discharge (level 3)

Immunity-RF-interference: ENV50140: 10 V/m (amplitude modulated, 80 MHz to

1GHz)(level3)

10 V/m (pulse modulated, 900 MHz)

Immunity Conducted Disturbance: ENV50141: 10 V (0.15 to 80 MHz) (level 3)

Immunity Burst: EN61000-4-4:2-kV power-line (level 3)

2-kV I/O signal-line (level 4)

Approved standards UL508, CSA22.2, CE; conforms to EN50081-2, EN50082-2, EN61010-1 (IEC1010-1);

conforms to VDE106/part 100 (Finger Protection) when the terminal cover is mounted.

Weight Approx. 400 g

Note: An Intelligent Signal Processor with DC supply voltage requires approximately 1 A DC as control power supply current the moment

the Intelligent Signal Processor is turned on. Do not forget to take this into consideration when using several Intelligent Signal Pro-

cessors. When the Intelligent Signal Processor is not in measuring operation (e.g., the Intelligent Signal Processor has been just

turned on or is operating for startup compensation time), the display will read “ööööö” and all outputs will be OFF.

K3NX K3NX

3CHARACTERISTICS

Input signal DC voltage/current, AC voltage/current

A/D conversion method Double integral method

Sampling period 50 Hz: 12.5 times/s; 60 Hz: 15 times/s (selectable)

Display refresh period Sampling period (sampling times multiplied by number of averaging times if simple average

processing is selected.)

Max. displayed digits 5 digits (--19999 to 99999)

Display 7-segment LED

Polarity display “--” is displayed automatically with a negative input signal.

Zero display Leading zeros are not displayed.

Scaling function Programmable with front-panel key inputs (range of display: --19999 to 99999). The decimal

point position can be set freely.

HOLD function Maximum hold (maximum data)

Minimum hold (minimum data)

External controls HOLD: Process value held

RESET: Maximum/Minimum data reset

ZERO: Forced zero

Comparative output hysteresis setting Programmable with front-panel key inputs (1 to 9999).

Other functions Variable linear output range (for models with linear outputs only)

Remote/Local processing (available for communications output models only)

Maximum/Minimum value data reset with front panel keys

Forced-zero set with front panel keys

Averaging processing function (simple or moving average)

Startup compensation time (0.0 to 99.9 s)

Comparative output pattern selection

Security

Field calibration

Output configuration Relay contact output (5 outputs)

Transistor output (NPN and PNP open collector), BCD (NPN open collector)

Parallel BCD (NPN open collector) + transistor output (NPN open collector)

Linear output (4 to 20 mA, 1 to 5 V) + transistor output (NPN open collector)

Communication functions (RS-232C, RS-485, RS-422)

Communication functions (RS-232C, RS-485, RS-422) + transistor output (NPN open

collector)

Delay in comparative outputs

(transistor output) DC input: 200 ms max.

AC input: 400 ms max.

Enclosure ratings Front panel NEMA4 for indoor use (equivalent to IP66)

Rear case IEC standard IP20

Terminals IEC standard IP00

Memory protection Non-volatile memory (EEPROM) possible to rewrite 100,000 times

K3NX K3NX

3MEASURING RANGES

Input range Measuring range Input impedance Reliability (See Note 2.) Instantaneous overload

(30 seconds)

DC voltage æ±199.99 V 10 MΩ±0.1%rdg ±1 digit max. ±400 V

å±19.999 V 1M

Ω

±200 V

ä±1.9999 V 10 MΩmin.

ã±199.99 mV 10 MΩmin.

â1.0000 to 5.0000 V 1M

Ω

DC current æ±199.99 mA 1Ω±0.1%rdg ±1 digit max. ±400 mA

å±199.99 mA 10 Ω

±200 mA

ä±1.9999 mA 100 Ω

ã4.000 to 20.000 mA 10 Ω

AC voltage æ0.0 to 400.0 V 1M

Ω±0.3%rdg ±5 digit max. 700 V

å0.00 to 199.99 V 1M

Ω

ä0.000 to 19.999 V 1M

Ω±0.5%rdg ±10 digit max. 400 V

ã0.0000 to 1.9999 V 10 MΩmin.

AC current æ0.000 to 10.000 A (0.5 VA CT)

(See Note 4.) ±0.5%rdg ±20 digit max. 20 A

å0.0000 to 1.9999 A (0.5 VA CT)

(See Note 4.)

ä0.00 to 199.99 mA 1Ω±0.5%rdg ±10 digit max. 2A

ã0.000 to 19.999 mA 10 Ω

Note: 1. The “rdg” stands for “reading value.”

2. The accuracy is guaranteed for the input frequency range of 40 Hz to 1 kHz (except for æand åranges of AC current input) and

the ambient temperature of 23±5°C.

If the actual input in each of the following measuring ranges is 10% of the maximum value or less, the following accuracy values

will apply.

Input range Reliability

DC voltage æ,å,ä,ã,â±0.15% FS

DC current æ,å,ä,ã±0.1% FS

AC voltage æ±0.25% FS

å±0.5% FS

ä,ã±0.15% FS

AC current æ±0.15% FS

å±0.1% FS

ä,ã±1.0% FS

3. When using a DC voltage input model in the äand ãrange, do not open the input terminals. The input terminals can be opened,

however, if a resistor of approximately 1 MΩis connected to the input terminals.

1234

±1.9999 V

±199.99 mV

+--

Ω

4. “0.5 VA CT” indicates consumption VA of the internal CT.

K3NX K3NX

ineerin

Data

3DERATING CURVE FOR SENSOR POWER SUPPLY

Max. current (mA)

Ambient temperature (°C)

Note: The derating curve shown is for standard installation.

The derating curve depends on the mounting direction.

Nomenclature

3K3NX

1. SV Display

2. PV Display

4. SV Display Status

5. ESC Key

6. Mode Key

7. Status Indicators

8. Teaching Indicator

9. RESET/TEACH Key

10. Up Key and Shift Key

3. Comparative Output

Status Indicators

Name Functions

1. SV display Displays the set value or parameter. Available for Set Value LED Models only.

2. PV display Displays the process value in addition to the max./min. value or parameter.

3. Comparative output

status indicators Displays the status of comparative output.

4. SV display status Indicates which comparative set value is currently on the SV display.

5. ESC Key Used to return to the RUN mode from the Setting, Protect, or Maintenance mode.

The process value, maximum value, or minimum value to be displayed can be selected.

6. Mode Key Used to enter the Setting mode.

Used to allow the PV display to indicate set values sequentially. Available for Basic Models only.

Used to indicate set values sequentially on the SV display. Available for Set Value LED Models only.

7. Status indicators HOLD: Lit when HOLD input is ON.

MAX: Lit when the maximum value is indicated on the PV display.

MIN: Lit when the minimum value is indicated on the PV display.

ZERO: Lit when the forced zero function is activated.

PROG: Lit or flashes while parameters are being set.

8. Teaching indicator Lit when the teaching function is enabled and flashes when the Intelligent Signal Processor is in teaching

operation.

9. RESET/TEACH Key The forced zero, maximum value, and minimum value are reset by pressing this key.

Teaching is available when the teaching function is enabled.

10.Up Key and Shift Key The digit being set is scrolled by pressing the Shift Key. The set value increases by one whenever the Up

Keyispressed.

K3NX K3NX

Operation

3SETTING PROCEDURES

The K3NX has four modes: RUN mode for normal operations, Setting mode for initial parameter input, Protect mode for lock-out configu-

ration, and Maintenance mode for initializing set values and user calibration. The parameters that are accessible on any individual K3NX

will vary depending on the Output Board installed. Refer to the

K3NX Operation Manual

for details.

RUN Mode: Remains in this mode under normal operation.

The process value or the max./min. value can be monitored.

Usingthefrontpanelkeys,thecomparativesetvaluecanbechangedandforced-zeroresetormax./min.valuesreset

can be performed.

Setting Mode: Used for making initial settings.

Includes four menus (Set value (,ç,â-), scaling (,äæ%â), setup (,â-.)), option (()-)) and the output test.

Protect Mode: Used for locking the front key operation or parameter changes.

Maintenance Mode: Used for initializing set values and user calibration of the inputs.

The user calibration is valid for selected input ranges.

Power ON

RUN mode

Setting mode

Maintenance mode

Protect mode

ESC ESC

ESC

When power is ON

,ç,â- - Program set values

,ç÷!! Enter set value HH

,ç÷ ! Enter set value H

,ç÷ % Enter set value L

,ç÷%% Enter set value LL

,äæ%â - Display scaling

"')÷ô Enter signal level for scaling point #2

ã,)÷ô Enter display reading for scaling point #2

"')÷õ Enter signal level for scaling point #1

ã,)÷õ Enter display reading for scaling point #1

ãâäø) Select decimal point

,â-.) - Program input range/Serial communications

"'ø- Specifying input range

á+â Select the supply frequency to eliminate inductive

noise

.ø'( Enter the unit no. for the host

å), Select the baud rate

%â' Select the word bit length

,å"- Select the stop bits

)+-1 Select the parity bits

()- - Supplementary settings related to display or control

æ. Set for averaging process value

,-"&â Set startup compensation time

!1, Enter hysteresis value

äø(.- Select the output pattern

%,â-÷! Enter the upper limit (H) of linear output range

%,â-÷% Enter the lower limit (L) of linear output range

+ø% Select the remote/local programming

-â,- - Generating simulated input for testing the output function

)+(- - Program lock-out configuration

æ%% Enable all key protection

,ç,â- Enable set value change prohibition

ëâ+( Enable prohibition of forced-zero reset using the

front panel keys

&&÷+,- Enableprohibitionofmax./min.valueresetusingthe

front panel keys

,âä+ Specify the menus to be protected against setting in

the setting mode.

K3NX K3NX

3PARAMETERS

Scaling ,äæ%

The Intelligent Signal Processor converts input signals into

desired physical values.

INPUT2: Any input value

DISPLAY2: Displayed value corresponding to INPUT2

INPUT1: Any input value

DISPLAY1: Displayed value corresponding to INPUT1

Input value

INPUT1 INPUT2

Input value

Displayed value

DISPLAY1 DISPLAY2

INPUT2 INPUT1

Average Processing æç

The average processing function stabilizes displayed values by

averaging the corresponding analog input signals that fluctuate

dynamically or reducing the noise in the input signals.

Startup Compensation Time ,-"&â

The startup compensation time parameter keeps the

measurement operation from sending an unnecessary output

corresponding to instantaneous, fluctuating input from the

moment the K3NX is turned ON until the end of the preset period.

The compensation time can be set in a range from 0 to 99.9

seconds as the waiting time until the devices subject to

measurement become stable after the startup of the power

supply.

Set value L

Comparative

output L

Power supply

Time

Display

ööööö displayed

Startup compensation time

Hysteresis !1,

The hysteresis of comparative outputs can be set to prevent the

chattering of comparative outputs. For more details, refer to

Output Operation Timing in Run Mode

(found later in this

section).

Output Pattern Selection äø(.-

The patterns of comparative output are selectable according to

the level change. Select the pattern according to the application.

Standard Output

Set value HH

Set value H

Set value L

Set value LL

Comparative output HH

Comparative output H

PASS

Comparative output L

Comparative output LL

Zone Output

Set value HH

Set value H

Set value L

Set value LL

Comparative output HH

Comparative output H

PASS

Comparative output L

Comparative output LL

Set value HH

Set value H

Set value L

Set value LL

Comparative output HH

Comparative output H

PASS

Comparative output L

Comparative output LL

Level Output

Note: The following setting conditions must be satisfied, other-

wise, no zone output will turn ON correctly.

LL<L<H<HH

K3NX K3NX

Linear Output Range %,â-

A linear output range can be set as required. A value

corresponding to the maximum output value and that

corresponding to the minimum output value can be set.

Display

20 mA

4mA

Upper

limit

Output

Lower

limit

For the 4- to 20-mA

output type

Remote/Local Selection +ø%

Select remote programming when performing all settings through

the host devices and select local programming when performing

settings through key operation.

3TERMINAL ARRANGEMENT

Output unit

Input unit

18 19 20 21 22 23 24 25 26

10 11 12 13 14 15 16 17

1 2 3 4 5 6 7 8 9

Terminal Numbers

Note: Terminals 7 to 13 are connected internally.

Output

unit

Input

unit

3INPUT UNIT

1 2 3 4 5 6 7 8 9

10 11 12 13 14 15 16 17

HOLD RESET

COM

12 to 24 VDC

100 to 240 VAC

COM ZERO

Signal input terminal

12 VDC

+80mA-- When inputting the external control signals

through the open collector:

Transistor Inputs:

ON: Residual voltage must be 3 V max.

OFF: Leakage current must be 1.5 mA max.

The switching capacity must be 20 mA or greater.

When the external signal input is short-circuited,

a voltage of approximately 5 V will be applied to

between the terminals 5 to 7 and the COM

terminal, and a current of approximately 18 mA

(nominal value) will flow.

VD: DC Voltage Input AD: DC Current Input

1 2 3 4

±1.9999 V

±199.99 mV

±19.999 V

1to5V

±199.99 V

ANALOG

COM. 1 2 3 4 ANALOG

COM.

±1.9999 mA

±19.999 mA

4to20mA

±199.99 mA

K3NX K3NX

VA: AC Voltage Input AA: AC Current Input

1 2 3 4

0 to 1.9999 V

ANALOG

COM.

0 to 19.999 V

0 to 199.99 V

0 to 400.0 V

1 2 3 4

0 to 199.99 mA

0 to 1.9999 A

0 to 10.000 A

ANALOG

COM.

0 to 19.999 mA

3OUTPUT OPERATION TIMING IN RUN MODE (RELAY OR TRANSISTOR OUTPUTS)

The following timing chart is for a 5-comparative output board when the standard output pattern is selected.

Display

HH set value

H set value

L set value

LL set value

HH comparative output

H comparative output

PASS output

L comparative output

LL comparative output

Display value

Hysteresis

HYS

Note: The hysteresis value set in setting mode will be applied to all set values.

K3NX K3NX

3BLOCK DIAGRAM

Input circuit

Input signal

Control input Control input

circuit

Power supply

circuit

Control power

supply

Waveform

adjustment

circuit

Voltage stabilizing

circuit

Voltage stabilizing

circuit

Front panel keys

and switch LED

Output

circuit

8-bit

microcomputer

A/D conversion

circuit

A/D conversion circuit

8-bit microcomputer

Control input circuit

Auxiliary power supply

(input circuit)

Sensor power

supply

Voltage stabilizing

circuit

Application Examples

3DETECTION OF ALUMINUM DEPOSITION 3DETECTION OF DUST EXHAUST

CRT

Discrimination output

E3SA

4to20mA

PASS

K3NX

Detects via the E3SA the change in reflected light according

to the amount of aluminum deposition on the CRT.

The input is processed and displayed in percentage by the

scaling function.

The change in the density of the dust is detected via the

E3SA and discriminated by the K3NX.

Exhaust

Grinder Dust collecting machine

Alarm output

E3SA

4to20mA

K3NX

H PASS L

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