Omron K3NC Manual de usuario

Up/Down Counting Meter K3NC

An Ideal Interface for High-Speed

Up/Down Counting and Serial

Communications

150-kHz input range for high-speed

signal processing

1A wide selection of outputs: relay,

transistor, BCD, linear, or

communications

1Prescale function available, which

displays in units of actual physical

parameters (length, volume, etc.)

1Auxiliary power supply (12 VDC, 80 mA)

1Banks with four set values and four

prescale values

1Five-stage comparative outputs

available

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 UNIT

Model Supply voltage Applicable output boards Part number

Input type

NPN/Voltage pulse PNP

Basic model 100 to 240 VAC K31-C1/C2/C5

K31-T1/T2

K31-B2/B4

K31-L1/L2/L3/L4/L5/L6/

L7/L8/L9/L10

K3NC-NB1A K3NC-PB1A

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 K31-FLK1/FLK2/FLK3/

FLK4/FLK5/FLK6 K3NC-NB2A K3NC-PB2A

Set value LED model 100 to 240 VAC K31-C1/C2/C3

K31-T1/T2

K31-B4

K31-L4/L5/L6/L9/L10

K3NC-NB1C K3NC-PB1C

Present value LED, set value LED, and front-

panel control keys. Can connect to relay,

transistor, or combination output boards.

12 to 24 VDC

K3NC-NB2C K3NC-PB2C

Note: Both models must be used with an output board in order for them to operate.

K3NC K3NC

3MODEL NUMBER LEGEND

K3NC - 1 234

Base Units

1, 2. Input Sensors Codes

NB: NPN inputs

PB: PNP inputs

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%

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 25% 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

Processors. 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.

K3NC K3NC

3CHARACTERISTICS

Input signal No-voltage contact (30 Hz max., ON/OFF pulse width: 15 ms min.)

Voltage pulse (50 kHz max., ON/OFF pulse width: 9 µs min., ON voltage: 4.5 to 30 V/OFF

voltage:

--30to2V)

Open collector (50 kHz max., ON/OFF pulse width: 9 µsmin.)

Connectable Sensors

ON residual voltage: 3 V max.

OFF leakage current: 1.5 mA max.

Load current

Transistor input: Must have switching capacity of 20 mA min.

Contact input: Must be able to dependably switch a load current of 5 mA max.

Input mode Up/Down B (individual inputs), Up/Down C (phase difference inputs)

Output mode ALL-H/ALL-L

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.

Prescale function Programming via front-panel key inputs. (0.0001 x 10-- 9 to 9.9999 x 109, decimal point can be

set freely)

Can be set using prescale value teaching.

External control RESET: 16 ms max. (external reset signal)

COMPENSATION: 16 ms max. (external compensation signal)

BANK 1, 2: 100 ms max. (bank switching time)

Up to 4 set value or prescale value banks available

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

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

Counting value reset with front panel keys

Security

Memory power failure

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 1 ms max. (at transistor output),

10 ms max. (at relay output)

Enclosure rating 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)

K3NC K3NC

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

3K3NC

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

OUT5

OUT4

OUT3

OUT2

OUT1

1 2 3

4 5OUT

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 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.

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 indicator RESET: Lit when the RESET input is ON.

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 counting value is 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 1 whenever the up

keyispressed.

K3NC K3NC

Operation

3SETTING PROCEDURES

The K3NC 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. The parameters that are accessible on any individual K3NC will vary depending

on the Output Board installed. Refer to the

K3NC Operation Manual

for details.

RUN Mode: Remains in this mode under normal operation.

The process value can be monitored.

Using the front panel keys, the comparative set value can be changed and counting value reset can be performed.

Setting Mode: Used for making initial settings.

Includessettingsforfourmenus(Setvalue(,ç,â-),prescaling(),ä%),setup(,â-.)),option(()-))andtheoutputtest.

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

Maintenance Mode: Used for initializing set values.

Power ON

RUN mode

Setting mode

Maintenance mode

Protect mode

ESC

When power is ON

,ç,â- - Program set values

,÷åæ'$ Select bank no. of set values

,çõ÷öõ Enter set value OUT1 of bank 1

,çõ÷öô Enter set value OUT2 of bank 1

,çõ÷öó Enter set value OUT3 of bank 1

,çõ÷öò Enter set value OUT4 of bank 1

,çõ÷öñ Enter set value OUT5 of bank 1

Note: The above is an example when the bank number is set to 1.

),ä% - Display prescaling

)÷åæ'$ Select bank no. of prescale values

),õ÷æ0 Set the mantissa (X) of the prescale value

),õ÷æ1 Set the exponent (Y) of the prescale value

ãâä)÷õ Select decimal point

Note: The above is an example when the bank number is set to 1.

)+(- - Program lock-out configuration

æ%% Enable all key protection

,ç,â- Enable set value change prohibition

+â,â- Enable prohibition of counting value reset using

the front panel keys

,âä+ Specify the menus to be protected against set-

ting in the setting mode

,â-.) - Program input mode/input sensor/serial communications

ä(.'- Specify input mode

"' Select a sensor type

.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

&â&( Select power failure memory function

ä(&)' Set compensation value

ä('ø) Select conditions thatallowcompensationinput

(.- Select output mode

%,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,- -Generatingsimulatedinputfortestingtheoutputfunction

K3NC K3NC

3PARAMETERS

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.

Prescaling

The prescale function makes it possible to convert the counting

value of the K3NC into an appropriate value.

For example, the system shown in the illustration outputs 250

pulses when the object is advanced 0.5 m. To enable the K3NC

to display PPPP.P(mm), obtain the advanced length of the

object per pulse from the following formula.

500 mm (0.5 m)/250 = 2

1. The prescale value is set by the mantissa X multiplied by the

exponent Y as follows:

Prescale value = 2.0000 x 100

X = 2.0000, Y = 00

2. Set the decimal point to the left of the rightmost digit.

0.5 m

250

pulses

Encoder

K3NC

3TERMINAL ARRANGEMENT

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

Output unit

Input unit

3INPUT UNIT

Note: Terminals 7 and 13 are insulated

from each other.

Power supply

12 VDC

(80 mA max.)

Signal input terminals

K3NC K3NC

K3NC-NB

(NPN input/voltage pulse input) K3NC-PB (PNP input)

12 V

Contact

NPN output sensor Voltage output PNP output sensor

+12 V 0V

0V +12 V 0V

3ROTARY ENCODER CONNECTION EXAMPLE

Phase A

Phase B

INA/INB Counts input signals.

Accepts Up/Down (individual or phase difference) inputs.

RESET Resets the present value to zero.

No counting inputs are accepted when a RESET input is ON.

RESET is lit when a RESET input is ON.

Note: External reset minimum signal width: 16 ms

COMPENSATION Resets the present counting value to the compensation value at the rising edge of a compensation input.

In the compensation value setting parameter, it is possible to set to “Effective during incrementing and

decrementing a count” or to “Effective only during incrementing a count.”

Note: External compensation input minimum signal width: 16 ms

BANK 1, 2 Selects one of the four banks.

Bank no. Control input

Bank 1 Bank 2

1OFF OFF

2ON OFF

3OFF ON

4ON ON

Note: Bank switching minimum signal width: 100 ms max.

K3NC K3NC

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

The K3NC can output the results of Up/Down counting as comparative outputs.

The output mode can be set to the ALL-H mode or the ALL-L mode.

ALL-H

If the ALL-H output mode is selected, outputs 1 to 5 will be

ON when the measured value exceeds set values 1 to 5.

ALL-L

If the ALL-L output mode is selected, outputs 1 to 5 will be

ON when the measured value is less than set values 1 to 5.

Note: Set value 2 < compensation value < set value 3 Note: Set value 2 < compensation value < set value 3

Measured value

Set value 5

Set value 4

Set value 3

Set value 2

Set value 1

Reset

Compensation

value

Output 5

Output 4

Output 3

Output 2

Output 1

Measured value

Set value 5

Set value 4

Set value 3

Set value 2

Set value 1

Reset

Compensation

valueOutput 5

Output 4

Output 3

Output 2

Output 1

See Note. See Note.

While the reset signal is ON, the counting value will return to zero.

When the compensation signal is ON, the K3NC will be in counting operation starting with the preset compensation value. Depending on

the setting conditions, the compensation value will be effective only for the incrementing operation.

3OUTPUT DELAY (REFERENCE VALUE)

The following table shows the time required for a K3NC in a system to go into reverse output operation after the counting value reaches

the value preset with the K3NC, and is due to the output processing time of the K3NC, signal transmission time of the system, and the

relay connected to the K3NC.

Control I/O Output or response delay time

Relay contact output 3.0 to 10.0 ms

NPN/PNP transistor output 0.1to0.6ms

Reset input 12.0 to 16.0 ms

Compensation input 12.0 to 16.0 ms

Bank switch 60.0 to 100.0 ms

Note: Output delay time varies with the operating environment. If the output delay time will possibly have a serious influence on your

system, check the actual output delay time before applying the K3NC to the system.

K3NC K3NC

3INPUT MODE AND COUNTING VALUES

.øã å : Up/Down B individual input .øã ä : Up/Down C phase difference input

Counting

value

INA

INB

Counting

value

INA

INB

Note: 1. “B” must be larger than half the minimum signal width. If it is smaller, an error of ±1 count may occur.

2. Refer to the following for the meanings of the H and L characters in the above timing charts.

Signal No-voltage input

HShort-circuit

LOpen

3BLOCK DIAGRAM

Input circuit

Power supply

for sensor

Sensor A

Sensor B

GND

Control input Control input

circuit

Power supply

circuit

Control power

supply

Waveform

adjustment

circuit

Voltage stabilizing

circuit

Voltage stabilizing

circuit

Voltage stabilizing

circuit

Key

switch LED

Output

circuit

8-bit

microcomputer

Frequency

measurement

circuit

Power supply for

sensor (input circuit)

Frequency measurement circuit

Waveform adjustment circuit

8-bit microcomputer

Control input circuit

K3NC K3NC

Dimensions

Unit: mm (inch)

3K3NC

Panel Cutouts

14.2

8.2

PV Display

OUT5

OUT4

OUT3

OUT2

OUT1

RESET

OUT

123

(3.58)

(1.73)

96 (3.78)

112 (4.41)

(1.89)

(3.54)

2.2

(0.09)

(1.69)

12.4

(0.49) 130 (5.12)

75 min

(2.95)

120 min.

(4.72)

45 (1.77)

(1.18)

70.5

(2.78)

46.5

(1.83)

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