Omron K3GNNDC24VDC 1/32 din digital panel meter Datasheet

1/32 DIN Digital Panel Meter
K3GN
Compact and Intelligent Digital Panel Meter
• A single Panel Meter covering a wide range of applications.
3 main applicable functions:
• Process meter (DC voltage/current input).
• RPM processor/tachometer (frequency input).
• Digital data display for PC/PLC (RS-485 communications).
• Easy configuration
• Multi-range analog input: applicable for all standard analog
signals.
6 input ranges available: 4 to 20 mA/0 to 20 mA, 1 to 5 VDC/
0 to 5 VDC, ±5 VDC, ±10 VDC.
• 5 KHz max. input-pulse frequency range.
• Scaling in a wide range of engineering units.
• Programmable output operation action, decimal point
position setting, teaching function for input range, leading
zero suppression, average processing.
• Advanced and compact design
• Very compact 1/32 DIN housing: 48 (W) x 24 (H) x 83 (D).
• 5-digit display with programmable display color in red or
green.
• Good visibility: High contrast backlit LCD display.
• High protection against water and dust: NEMA4X/IP66 front
panel.
• Selectable outputs: 2 relay outputs, 3 transistor outputs,
RS-485, and combinations of these.
• High accuracy: ±0.1% full scale.
• Easy to configure through the front panel or via RS-485.
• EN/IEC conformity with CE marking and UL/CSA approval.
®
Model Number Structure
■ Model Number Legend
K3GN -
1
2
24 VDC
3
Panel
indicators
1. Input Type
ND: DC voltage/current, NPN
PD: DC voltage/current, PNP
2. Output Type
C:
2 relay contact outputs (SPST-NO)
T1: 3 transistor outputs (NPN open collector)
T2: 3 transistor outputs (PNP open collector)
3. Communications Output Type
None: Communications not supported
FLK: RS-485
1/32 DIN Digital Panel Meter
K3GN
K-7
Ordering Information
■ List of Models
Input type
DC voltage/current, NPN
Supply
voltage
24 VDC
DC voltage/current, PNP
Output
Communications
No communications
RS-485
Dual relays (SPST-NO)
K3GN-NDC 24 VDC
K3GN-NDC-FLK 24 VDC
Three NPN open collector
K3GN-NDT1 24 VDC
K3GN-NDT1-FLK 24 VDC
Dual relays (SPST-NO)
K3GN-PDC 24 VDC
K3GN-PDC-FLK 24 VDC
Three PNP open collector
K3GN-PDT2 24 VDC
K3GN-PDT2-FLK 24 VDC
Specifications
■ Ratings
Supply voltage
24 VDC
Operating voltage range
85% to 110% of the rated supply voltage
Power consumption (see note)
2.5 W max. (at max. DC load with all indicators lit)
Insulation resistance
20 MΩ min. (at 500 VDC) between external terminal and case.
Insulation provided between inputs, outputs, and power supply.
Dielectric strength
1,000 VAC for 1 min between external terminal and case.
Insulation provided between inputs, outputs, and power supply.
Noise immunity
±480 V on power supply terminals in normal mode, ±1,500 V in common mode, ±1 µs, or 100 ns for squarewave noise with 1 ns
Vibration resistance
Malfunction: 10 to 55 Hz, 10 min each in X, Y, and Z directions; acceleration: 9.8 m/s2
Destruction: 10 to 55 Hz, 30 min each in X, Y, and Z directions; acceleration: 19.6 m/s2
Shock resistance
Malfunction: Models with transistor outputs: 196 m/s2 for 3 times each in X, Y, and Z directions
Models with relay contact outputs: 98 m/s2 for 3 times each in X, Y, and Z directions
Destruction: 294 m/s2 for 3 times each in X, Y, and Z directions
Ambient temperature
Operating:
Storage:
−10°C to 55°C (with no condensation or icing)
−25°C to 65°C (with no condensation or icing)
Ambient humidity
Operating:
25% to 85% (with no condensation)
EMC
(EMI)
Emission Enclosure:
Emission AC Mains:
(EMS)
Immunity ESD:
Approved standards
UL508, CSA22.2;
Conforms to EN61326+A1, EN61010-1 (IEC61010-1)
Conforms to VDE0106/P100 (finger protection) when the terminal cover is mounted.
Weight
Approx. 100 g
EN61326+A1
Industry
CISPR 11 Group 1 class A: CISRP16-1/-2
CISPR 11 Group 1 class A: CISRP16-1/-2
EN61326+A1
Industry
EN61000-4-2:
4 kV contact discharge (level 2)
8 kV air discharge (level 3)
Immunity RF-interference:
EN61000-4-3:
10 V/m (amplitude-modulated,
80 MHz to 1 GHz) (level 3)
Immunity Fast Transient Noise: EN61000-4-4:
2 kV (power line) (level 3)
Immunity Burst Noise:
1 kV line to line (I/O signal line)
Immunity Surge:
EN61000-4-5:
1 kV line to line
2 kV line to ground (power line)
Immunity Conducted Disturbance EN61000-4-6:
3 V (0.15 to 80 MHz) (level 2)
Immunity Voltage Dip/Interrupting EN61000-4-11:
0.5 cycles, 0, 180°, 100% (rated voltage)
Note: A control power supply capacity greater than the rated capacity is required when the Digital Panel Meter is turned ON. Do not forget to take
this into consideration when using several Digital Panel Meters. When power is supplied, all indicators will light and outputs will be OFF.
When using startup compensation time operation, the display will read “00000” and all outputs will be OFF.
K-8
1/32 DIN Digital Panel Meter K3GN
■ Characteristics
Input signal
Process voltage
(1 to 5 V, 0 to 5 V, ±5V, ±10 V)
Process current
(4 to 20 mA, 0 to 20 mA)
Digital data display (by RS-485
No-voltage contact
(30 Hz max. with ON/OFF pulse width communication)
of 16 ms min.)
Open collector
(5 kHz max. with ON/OFF pulse width
of 90 µs min.)
A/D conversion
Double integral method
14 bit resolution
---
Sampling period
250 ms
---
Display refresh
period
Sampling period (sampling times multiplied by number of averaging times if average processing is selected.)
Pulse measurement
method
---
Connectable Sensors ---
Periodic measurement
---
ON residual voltage: 2.5 V max.
OFF leakage current: 0.1 mA max.
Load current:
Must have a switching capacity of 15 mA min.
Must be able to reliably switch load currents of 5 mA max.
Max. displayed digits 5 digits (−19999 to 99999)
Display
7-segment digital display, character height: 7.0 mm
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 as
desired.
External controls
(see note 1)
HOLD: (Measurement value held)
ZERO: (Forced-zero)
Hysteresis setting
Programmable with front-panel key inputs (0001 to 9999).
Other functions
Programmable Color Display
Selectable output operating action
Teaching set values
Average processing (simple average)
Lockout configuration
Communications writing control (communications output models only)
---
Forced-zero set with front panel keys Startup compensation time (0.00 to 99.9 s)
Control inputs (HOLD/ZERO) selection Auto-zero time (0.0 to 19.9 s)
via front panel keys
Field calibration
Output
Relays:
2 SPST-NO
Transistors: 3 NPN open collector
3 PNP open collector
Combinations:
Communications output (RS-485) + relay outputs (2 SPST-NO);
Communications output (RS-485) + transistor outputs (3 NPN open collector);
Communications output (RS-485) + transistor outputs (3 PNP open collector)
Communications
Communications function: RS-485
Degree of protection
Front panel:NEMA4X for indoor use (equivalent to IP66)
Rear case: IEC standard IP20
Terminals: IEC standard IP20
Memory protection
Non-volatile memory (EEPROM) (possible to rewrite 100,000 times)
Panel
indicators
Delay in comparative 750 ms max.
outputs
(transistor outputs)
Note 1. The minimum input time for control signals is 80 ms.
2. Refer to N102 Operation Manual for more details.
1/32 DIN Digital Panel Meter
K3GN
K-9
■ Measuring Ranges
Process Voltage/Current Inputs
Input
Measuring range
DC voltage
±0.1% FS ±1 digit max.
(at 23±3°C)
−5.000 to 5.000 V
±0.1% FS ±1 digit max.
(at 23±5°C)
−10.00 to 10.00 V
DC current
Measuring accuracy
1.000 to 5.000 V/
0.000 to 5.000 V
Input impedance
1 MΩ min.
±0.1% FS ±1 digit max.
(at 23±3°C)
4.00 to 20.00 mA/
0.00 to 20.00 mA
Displayable range
−19999 to 99999
(with scaling function)
60 Ω
No-voltage Contact/Open Collector Inputs
Input
Measuring range
No-voltage contact (30 Hz max.) with ON/
OFF pulse width of 16 ms min.
0.05 to 30.00 HZ
Open collector (5 kHz max.) with ON/OFF
pulse width of 90µs min.
0 to 5000 HZ
Measuring accuracy
(at 23±5°C)
±0.1% FS ±1 digit max.
Displayable range
−19999 to 99999
(with scaling function)
Digital Data Display (By RS-485 Communications)
−19999 to 99999
Displayable range
■ Input/Output Ratings
Relay Contact Output
(Incorporating G6K Relays)
Item
Resistive load (cosφ = 1)
Rated load
1 A at 30 VDC
Rated carry current
1 A max. (at COM terminal)
Max. contact voltage
60 VDC
Max. contact current
1 A (at COM terminal)
Max. switching capacity
30 VA
Min. permissible load
(P level, reference value)
10 mV, 10 µA
Mechanical life
50,000,000 times min. (at a switching frequency of 36,000 times/hr)
Electrical life
(at an ambient temperature of 23°C)
100,000 times min. (at the rated load with a switching frequency of 1,800 times/hr)
Transistor Output
Rated load voltage
24 VDC
Max. load current
50 mA
Leakage current
100 µA max.
■ Communications Specifications
Item
RS-485
Transmission method
2-wire, half-duplex
Synchronization method
Start-stop synchronization
Baud rate
1,200/2,400/4,800/9,600/19,200 bps
Transmission code
Communications
ASCII
Reading/Writing to Read/write set values, read/write scaling values, enable/disable the writing of data through commuthe K3GN
nications, forced-zero control, and other data.
Refer to N102 Operation Manual for more details.
K-10
1/32 DIN Digital Panel Meter K3GN
Connections
■ Terminal Arrangement
Output terminals
7
8
Models with
relay outputs
NC
C
D
7
8
1
2
9 10 11 12
RS-485
8
7
B (+)
1
A (−)
3
4
5
A
2
6
B
D
3
Operation
power supply
24 VDC*
OUT1
9
Models with
Models with
PNP transistor outputs NPN transistor outputs
NC
NC OUT2
COM
10 11 12
OUT1 PASS OUT2 COM
9
10 11 12
OUT1 PASS OUT2
9
10 11
5
6
COM
12
Event or pulse/contact input
1
Operation
power supply
24 VDC*
2
3
B
Analog input
A
Models with PNP inputs Models with NPN inputs
C
Models with
communications
Models without
communications
Input terminals
4
COM
Voltage Current
Analog input
Event or pulse/contact input
Note: *Operation power supply 24VDC: Recommended DC power supply: eg. OMRON s8VS
Name
Description
Operation power
Connect the operation power supply.
C-B
Event input or pulse/contact input
Operates as follows depending on parameter
setting:
• Holds process value.
• Calibrate the process value to zero and clear
the forced-zero function.
• Pulse or contact input.
Connect the voltage or current analog input.
C-A
D,F-E
Analog input
G-H
Communications
RS-485 communications terminals.
I,K-L
Outputs
Outputs relay or transistor outputs. There is
also a PASS output for models with transistor
outputs.
I,J,K-L
1/32 DIN Digital Panel Meter
K3GN
K-11
Panel
indicators
Terminal No.
A-B
■ Wiring
Block Diagram
Key
EEPROM
Pulse/
Control
input
terminal
Transistor output
(See note 1.)
A/D
conversion
circuit
Input circuit
Analog input
terminal
Display
Drive circuit
Microcomputer
Communications driver
Drive circuit
Waveform
rectification
circuit
Control input
circuit
Constant voltage circuit 1
Power supply circuit
Contact output
(See note 2.)
Output
circuit
Drive circuit
Communications terminal
(See note 3.)
Constant voltage circuit 2
Note: 1. Transistor output models only.
2. Relay output models only.
3. Models with communications functions only.
Operating power supply
Input Circuits
Analog Input (DC Voltage/Current)
Voltage input 4
To A/D
A
B
COM
To A/D
Current input 6
5
A+B=1 MΩ
COM 5
60 Ω
Pulse Input/Control Event Input (HOLD/ZERO)
NPN Input
24 VDC +
PNP Input
24 VDC +
1
1
4.7 kΩ
2.35 kΩ
Hold/Zero Pulse
2.35 kΩ
3
3
Hold/Zero Pulse
4.7 kΩ
24 VDC −
K-12
2
1/32 DIN Digital Panel Meter K3GN
24 VDC −
2
Output Circuits
Contact Output
5V
5V
9
OUT1
11
OUT2
12
OUT3
Transistor Output
NPN Output
PNP Output
8.2 Ω
8.2 Ω
9
OUT1
10
PASS
11
OUT2
12
COM
8.2 Ω
8.2 Ω
12
COM
11
OUT2
10
PASS
9
OUT1
8.2 Ω
Panel
indicators
8.2 Ω
1/32 DIN Digital Panel Meter
K3GN
K-13
Operation
■ Main Functions
Input Types and Ranges
Input type (setting parameter)
Analog input (analg)
Function
Selects DC voltage/current signal
input.
Input range (setting parameters)
1 to 5 V/0 to 5 V (1-5)
±5 V (5)
±10 V (10)
Pulse input (pulse)
Selects pulse input signal.
Remote (rmt)
Displays digital data from PLC or
PC.
Setting range
Displayable from −19999 to 99999
with scaling function. The position
of the decimal point can be set as
desired.
4 to 20 mA/0 to 20 mA (4-20)
0.05 to 30 Hz (30)
0 to 5 kHz (sk)
---
Scaling
Analog (Process) Inputs
The K3GN converts input signals into desired physical values.
D = f × 1/5 × 60,
INPUT2
Displayed value
dsp
DISPLAY2
Displayed value
INPUT1
so if f = 1, then D = 12. Therefore, input 1 for inp and 12 for dsp.
DISPLAY1
DISPLAY2
Any input value
Displayed value corresponding to INPUT2
Any input value
Displayed value corresponding to INPUT1
DISPLAY1
Displayed value
INPUT2:
DISPLAY2:
INPUT1:
DISPLAY1:
Example: When displaying the rotational speed (rpm) for a machine
that generates 5 pulse signals per revolution, D is given by the following:
INPUT2
Input value
INPUT1
Input value
inp
Input value
Pulse Frequency
The K3GN converts pulse signal inputs into desired units such as
revolutions or rotational speeds.
The slope of the linear relationship between the input value and display value is calculated automatically when an input value and its
corresponding display value are entered.
Input value: Any arbitrary input value
Display value: Desired display value corresponding to input value
If scaling for pulse signals is not performed, the input frequency will
be displayed.
The relationship between input, f, and display, D, is expressed in the
form D = f × a (multiplication factor). The value of a will vary according to the display unit. For example, if the display unit is rpm, Y is
given by the following:
D = f × 1/N × 60 (i.e., a = 1/N × 60)
where N is the number of pulses per revolution and f is the input
pulse frequency (Hz).
If the display unit is m/min, Y is given by the following:
D = f × πd × 1/N × 60 (i.e., a = πd × 1/N × 60)
K3GN
Proximity Sensor
Average Processing
The average processing function stabilizes displayed values by averaging the corresponding input signals that fluctuate dynamically.
Hysteresis
The hysteresis of comparative outputs can be set to prevent the chattering of relay or transistor outputs.
Upper limit (high acting)
Set value
Measurement value
where πd = the wavelength (m) per revolution.
ON
Output
K-14
1/32 DIN Digital Panel Meter K3GN
OFF
Hysteresis
Startup Compensation Time (Pulse
Input Only)
Forced-zero Function
The startup compensation time parameter keeps the measurement
operation from sending an unnecessary output corresponding to
instantaneous, fluctuating input from the moment the K3GN is turned
ON until the end of the preset period.
It is possible to shift the zero point to a desired value (such as might
be required when adjusting reference values) with one touch of the
Up/Zero Key on the front panel.
The compensation time can be set in a range from 0.0 to 99.9 seconds as the waiting time until the devices subject to measurement
become stable after the startup of the power supply.
OUT1
ZERO
OUT2
HOLD
SV
CMW
Changing the Display Color
The display can be programmed to change color when an output
turns ON. In an example, the K3GN can be programmed to display
Green for normal, and Red for errors. The color can be set to change
from either green to red or red to green when output turns ON.
K3GN can also be programmed to display only one unchanging
color: Red or Green.
Teaching
An actual measured value as a set value without any front panel key
input can be set with the teaching function. Teaching is useful for
making settings while checking the operation status of K3GN.
Configurable Output Operating Action
Output 1 and output 2 can be set to operate in one of the 3 following modes:
• Upper limit (High Acting):
The output is turned ON when the measured value is greater than its set value.
• Lower limit (Low Acting):
The output is turned ON when the measured value is less than its set value.
• Upper and lower limits (Outside band Acting):
An upper limit (H set value) and lower limit (L set value) can be set independently.
The output is turned ON when the measured value is greater than upper-limit set value or less than the lower-limit set value.
Only transistor outputs have a PASS output which is output when both OUT1 and OUT2 are OFF.
Upper Limit (High Acting)
OUT1/2 set value
Lower Limit (Low Acting)
Upper-limit set value
for OUT1/2
Hysteresis
Measurement value
Measurement value
OUT1/2 set value
OFF
Hysteresis
Measurement value
Hysteresis
ON
Output
OFF
ON
Output
Upper and Lower Limits
(Outside Band Acting)
Hysteresis
Lower-limit set value
for OUT1/2
ON
Output
OFF
The three types of output operations shown above can be combined as desired. The following are examples of possible combinations.
Upper-limit OUT2
set value
OUT2
set value
Measurement
value
OUT1
set value
Threshold Output
Upper-limit OUT1
set value
Lower-limit OUT1
set value
Lower-limit OUT2
set value
Combination of Upper Limit and
Upper/Lower Limits
Measurement
value
Upper-limit
OUT2 set value
OUT1 set value
Measurement
value
Lower-limit
OUT2 set value
OUT2 ON
OFF
OUT2
ON
OFF
OUT2
ON
OFF
OUT1 ON
OFF
ON
OUT1 OFF
OUT1
ON
OFF
1/32 DIN Digital Panel Meter
Panel
indicators
Upper Limit 2-stage Output
K3GN
K-15
Nomenclature
1. Main display
2. Status indicators
2. Status indicators
3. Level indicator
4. Level key
5. Mode key
Name
6. Shift key
7. Up/Zero key
Functions
1. Main display
Displays process values, parameters, and set values.
2. Status indicators
OUT1
Lit when output 1 is ON.
OUT2
Lit when output 2 is ON.
SV
Lit when a set value is being displayed or changed.
T
Lit when the teaching function is enabled. Flashes when the K3GN is in teaching operation.
Lit when a calibration value is being displayed during user calibration. Flashes while reading a calibration value.
ZERO
Lit while the forced-zero function is activated.
HOLD
Lit when HOLD input is ON.
CMW
Lit when communications writing is “enabled” and is out when it is “disabled.”
3. Level indicator
Displays the current level that the K3GN is in. (See below for details.)
4. Level Key
Used to change the level.
5. Mode Key
Used to allow the Main display to indicate parameters sequentially.
6. Shift Key
Used to enable that set value to be changed. When changing a set value, this key is used to move
along the digits.
7. Up/Zero Key
Used to change a set value. Used to set or clear a forced-zero function when a measurement value is
being displayed.
Level indicator
p
Not lit
a
s
c
f
u
K-16
Level
Protect
Operation
Adjustment
Initial setting
Communications setting
Advanced function setting
User calibration
1/32 DIN Digital Panel Meter K3GN
Dimensions
Note: All units are in millimeters unless otherwise indicated.
Panel Cutouts
Separate
mounting
+0.6
Gang Mounting
(48 × No. of Panels − 2.5) +1.0
0
45 0
+0.3
22.2
22.2 0
+0.3
0
40 min.
The products cannot be
made waterproof when
gang-mounted.
The K3GN uses M3 terminals. A terminal
cover is provided.
Main Display Character Size
7 mm
3.6 mm
Application Examples
Detection of Dust Exhaust
Monitoring of Tank Pressure
The change in the density of the dust is detected via the E3SA and
discriminated by the K3GN.
The output of the pressure sensor is processed and the pressure is
displayed. Remote monitoring of the operation is possible with the
communications function.
Exhaust
4 to 20 mA
K3GN
E3SA
E8AA
Pressure
Sensor
K3GN
Host PC
RS-485
Foam
Dust collecting machine
Beer
Pump
OUT2
(Upper upperlimit alarm)
Device stops
OUT1
(Upper-limit
alarm) Output
reduction
instruction
Tank
Exhaust valve
Panel
indicators
Grinder
RS-232C
1/32 DIN Digital Panel Meter
K3GN
K-17
Monitoring of Motor Load Current
If the startup time compensation of the K3GN is enabled, the K3GN
will not be influenced by the inrush current from starting the motor,
and no signal will be output from the K3GN.
Power supply*
Electromagnetic relay
24-VDC power supply*
Monitoring the Remaining Quantity of
Soup
The distance to the surface of the soup is detected with an ultrasonic
sensor and, based on this distance, the K3GN displays the remaining
quantity. When the remaining quantity of soup decreases to less than
20%, the K3GN lights the “Replenish” indicator.
Signal input
4 to 20 mA
E4PA-LS50-M1
Ultrasonic Sensor
OUT1
(Upper-limit
alarm)
100 %
Volume of soup
OUT 1
Replenish
OUT2
(Lower-limit
alarm)
K3GN
K3GN
Large
cup
Medium
cup
K3FK
CT Converter
20 %
Small
cup
Note: *Power Supply: Recommended DC power supply:
eg. OMRON S8VS.
Monitoring Difference between Two
Line Speeds
The difference between the two line speeds is calculated by the PLC
and the result is written via RS-485 to the K3GN where it is displayed.
Monitoring Number of Motor
Revolutions
Power supply*
Signal input
24-VDC power supply*
RS-485 communications output
(calculation result)
Electromagnetic relay
4 to 20 mA
K3GN
(Set the input type to
"Remote").
OUT1 (Upper limit)
0 to 1 A
K3FK CT Converter
Position Indication on X-Y Table
The position on the X-Y table is calculated by the PLC and the result
is written via RS-485 to the K3GN where it is displayed. The scaling
function can be used to display the result in millimeter units.
PLC
X
RS-485 Communication output
135.4
mm
Y
X-Y Table
00
mm
K3GN
(Set the input type to
"Remote".)
K-18
1/32 DIN Digital Panel Meter K3GN
OUT2 (Lower limit)
K3GN-NDC
OUT1 (Upper limit)
E2E Proximity
Sensor
OUT2 (Lower limit)
K3GN-NDC
Note: *Power Supply: Recommended DC power supply:
eg. OMRON S8VS.
Precautions
Do not touch any of the terminals while power is being supplied.
Doing so may result in electric shock. Also, do not touch the terminals with a screwdriver while power is being supplied. Electrical
shock may result via the screwdriver.
!Caution
Do not allow metal objects or conductive wire cuttings to enter the
product. Doing so may result in electric shock, fire, or malfunction.
!Caution
Do not attempt to disassemble, repair, or alter the product. Doing
so may result in electric shock, fire, or malfunction.
!Caution
Do not use the product where flammable or combustion gasses
are present.
!Caution
The lifetime of output relays varies greatly with the switching capacity and conditions. Consider the actual operating conditions,
and use the product within the rated load and electrical service life.
!Caution
Do not use loads exceeding the rated value. Doing so may result
in damage or burning.
!Caution
Use a power supply voltage within the specified ratings. Not doing
so may result in damage or burning.
!Caution
Be sure to tighten the terminal screws securely. The recommended tightening torque is 0.5 N·m. Loose screws may result in product failure or malfunction.
!Caution
Perform correct setting of the product according to the application.
Failure to do so may cause unexpected operation, resulting in
damage to the unit or injury.
!Caution
This product is not a safety device. Product failure may prevent operation of comparative outputs. Take safety measures, such as installing a separate monitoring system, to ensure safety and to
prevent serious accidents caused by such failure, thus ensuring
safety.
Observe the following precautions to ensure safety:
1. Do not connect anything to unused terminals.
2. Be sure to check each terminal for correct number and polarity
before connection. Incorrect or reverse connection may damage
or burn out internal components of the K3GN.
3. Do not use the product in locations subject to the following:
• Dust or explosive gasses (e.g., sulfide gas or ammonia gas).
• Condensation or icing as a result of high humidity.
• Outdoors or in direct sunlight.
• Splashing liquid or oil atmosphere.
• Direct radiant heat from heating equipment.
• Extreme changes in temperature.
4. Do not block heat dissipation around the product, i.e., provide sufficient space for heat dissipation. Do not block the ventilation
holes on the back of the product.
5. Do not use paint thinner for cleaning. Use commercially available
alcohol.
6. Use a power supply meeting the power supply specifications of
the K3GN. Be sure that the rated voltage is achieved within 2 s
after turning ON the power.
7. Use the K3GN within the specified temperature and humidity
ranges. When installing the K3GN in a panel, be sure that the
temperature around the K3GN (not the temperature around the
panel) does not exceed 55°C. If the K3GN is subject to radiant
heat, be sure that the temperature of the surface of the K3GN
exposed to the radiant heat does not exceed 55°C by providing a
fan or other heat removal method.
8. Store the K3GN within the specified temperature and humidity
ranges.
9. Do not lay heavy objects on the product during use or storage.
Doing so may deform or deteriorate the K3GN.
10.Conduct aging for 15 minutes min. after power is ON for correct
measurement.
Mounting
Recommended panel thickness is 1 to 5 mm.
Insert the K3GN in the square cutout, insert the adapter from the
back, and push the K3GN into the cutout as far as possible. Use
screws to secure the K3GN. To make the K3GN waterproof, insert
watertight packing in the K3GN.
Install the watertight packing in the proper direction. Note that the
packing is direction-sensitive.
When gang-mounting two or more products in a cutout, be sure that
the ambient temperature does not exceed the specifications.
Mount the K3GN as horizontally as possible.
Separate the K3GN from machines generating high-frequency noise,
such as high-frequency welding machines and high-frequency sewing machines.
Operation
A K3GN model with a relay contact or transistor output may not output any alarm signal normally if the model has an error. It is recommended that an independent alarm device be connected to the
model.
The parameters are factory-set so that the K3GN will operate normally. The settings of the parameters may be changed according to
the application.
Wiring
Wire the power supply with the correct polarity. Wiring with incorrect
polarity may result in damage or burning.
Wire the terminals using crimp terminals.
Tighten terminal screws to a torque of approx. 0.5 N·m.
Wire signal lines and power lines separately to reduce the influence
of noise.
Use M3 crimp terminals of the type shown below.
Panel
indicators
!WARNING
5.8 mm max.
5.8 mm max.
1/32 DIN Digital Panel Meter
K3GN
K-19
Operating Procedures
■ Initial Settings
Power ON
Press the Level Key @ for 3 s min. to move to the initial setting
level.
Select the input type and specify the analog input range or
pulse frequency input range.
Set the scaling values and specify output operating action as
required.
With communications output models, press the Level Key @ for
less than 1 s to move to the communications setting level.
After making communications settings, press the Level Key @
for less than 1 s to move to the initial setting level.
Move to the advanced function setting level and make settings
for average processing, HOLD/ZERO selection, hysteresis values, auto-zero time, startup compensation time, display color
programming, and other advanced function parameters as required.
Press the Level Key @ for less than 1 s min. to return to the
operation level.
Specify set value of OUT 1 and 2.
Measurement starts.
K-20
1/32 DIN Digital Panel Meter K3GN
■ Levels
“Level” refers to a grouping of parameters. The following table lists the operations that are possible in each of the levels, and how to move between
levels. There are some parameters that are not displayed for certain models.
Level name
Function
Measurement
Protect
Setting lockouts.
Continue
Operation
Displaying process values, setting/clearing forced-zero function, and Continue
setting OUT 1/2 set values.
Adjustment
Setting communications writing control.
Initial setting
Making initial settings of input type, scaling, output operating action, Stopped
and other parameters.
Continue
Communications setting
Setting baud rate, word length, and other communications data.
Stopped
Advanced function setting
Setting average processing, display color settings, and other advanced function parameters.
Stopped
Calibration
Setting user calibration of the inputs.
Stopped
Power ON
+
Time set
by user
Operation
Adjustment
Less than 1 s
(see note)
Flashing stops if key
is released.
1 s min.
Protection
1 s min.
+
1 s min.
-1234.5
Indicates change of level.
Continue to press the key for 2 s min.
Communications
setting
Initial setting
Less than 1 s
Password "−0169"
1 s min.
Advanced function
setting
Password "1201"
Calibration
1/32 DIN Digital Panel Meter
Panel
indicators
Note: The move to protection level time can be set in the advanced function setting level.
K3GN
K-21
■ Parameters
Note: 1. Some parameters are not displayed for certain models.
2. The K3GN will stop measurement if the level is changed to the initial setting level, the
advanced function setting level, the communications setting level, or the calibration
level.
3. If the input range is changed, some parameters are set to default values. Therefore,
set the input range first.
4. Settings displayed in reverse black/white are defaults.
Power ON
Press Level Key
Adjustment level
for less than 1 s.
Communications
writing
control
Process value
Set one
of these.
Changing Set Values
While parameters are being displayed, set values can be displayed
by pressing the Shift Key
(monitor status).
Pressing the Shift Key again will make it possible for this set value
to be changed (setting status). The part that can be changed will
flash.
Change the set value as required, and press the Mode Key to register the setting and move to the next parameter.
Monitor Status
Next parameter
K-22
Operation level
Setting Status
Change the set
value using the
The set value If there is no key op- Up Key and
flashes.
eration for 5 seconds, the Shift Key .
the setting is registered and the display
returns to monitor status.
1/32 DIN Digital Panel Meter K3GN
Set one
of these.
OUT1
set value
−
Upper-limit
OUT1 set
value
−
Lower-limit
OUT1 set
value
−
OUT2
set value
−
Upper-limit
OUT2 set
value
−
Lower-limit
OUT2 set
value
−
Press Level Key
for less than 1 s.
Communications
setting level
Communications
unit no.
−
Baud rate
Word
length
Stop bits
Parity bits
None
Even
Odd
Press Level Key
for more than 3 s.
Press Level Key
for more than 1 s.
Advanced function
setting level
Initial setting level
Press Level
Key
for
more than 1 s.
Enter password "−0169"
Input type
Analog
Pulse
Parameter
initialization
Remote
(digital
data display)
For analog input
For pulse input
Analog
input
range
Average
processing
Unit: times
Input-pulse
frequency
range
For analog/
remote input
HOLD/
ZERO
selection
Unit: Hz
For analog/
remote input
Input
value 1
for
scaling
−
OUT1
Hysteresis
−
−
Display
value 1
for
scaling
−
OUT2
Hysteresis
−
−
Input
value 2
for
scaling
−
For pulse input
Auto-zero
time
−
Unit: s
Display
value 2 for
scaling
Startup
compensation
time
−
−
Unit: s
−
Display
color
change
−
Display
Auto-return
time
Green (red)
Green
Red (green)
Red
Display
value for
scaling
−
−
Unit: s
Decimal
point
position
Move-toprotectlevel time
−
−
Panel
indicators
For pulse input
Input
value for
scaling
−
Unit: s
Operating
Action for
OUT1 set
value
Operating
Action for
OUT2 set
value
Move to
advanced
function
setting level
Upper Limit
Send
waiting
time
Lower Limit
Upper/Lower
Limits
−
Unit: ms
For analog input
Upper Limit
Lower Limit
Upper/Lower
Limits
−
−
Move to
calibration
level
− −
−
Enter password "1201"
Calibration level
1/32 DIN Digital Panel Meter
K3GN
K-23
Protect level
• Prohibits menu display, writing, etc., for
operation level and adjustment level.
p
Operation/adjustment
lockouts
p
Initial setting/communications lockouts
• Prohibits access to menu display, initial setting
level, communications setting level, and
advanced function setting level.
• Prohibits setting changes using front panel keys.
p
Setting change lockout
p
• Prohibits use of the forced-zero function using
front panel keys.
Forced-zero shift
lockout
Operation/Adjustment Lockouts
Prohibits key operations for operation level and adjustment level.
Setting
Operation level
Process value
display
Set value display
Moving to
adjustment
level
0
Allowed
Allowed
1
Allowed
Allowed
Prohibited
2
Allowed
Prohibited
Prohibited
Prohibits moving to the initial setting level, the communications setting level, and the advanced function setting level.
Setting
Allowed
• Initial setting is 0.
• When the set value is 0 (the initial setting), protection is not set.
Setting Change Lockout
Prohibits setting changes.
Setting
Initial Setting/Communications
Lockouts
Moving to initial setting
level
Moving to
communications setting
level
0
Allowed (message for mov- Allowed
ing to advanced function
setting level displayed)
1
Allowed (message for mov- Allowed
ing to advanced function
setting level not displayed)
2
Prohibited
Prohibited
• The initial setting is 1.
Meaning
OFF
Setting changes using front panel keys allowed (i.e., it is
possible to move to the state where changes to settings
can be made).
ON
Setting changes using front panel keys prohibited (i.e., it
is not possible to move to the state where changes to
settings can be made).
Forced-zero shift Lockout
Prohibits the setting or clearing of a forced-zero using the front panel
key.
Setting
Meaning
OFF
Executing and clearing of forced-zero allowed.
• The initial setting is OFF.
ON
Executing and clearing of forced-zero prohibited.
Note: Changes to protection level parameters, moving to advanced
function setting level, and moving to calibration level are all allowed.
• The initial setting is OFF.
K-24
1/32 DIN Digital Panel Meter K3GN
■ Troubleshooting
When an error occurs, error details will be displayed on the main display. Confirm the error from the main display and take the appropriate countermeasures.
Main display
Level
display
Error contents
Countermeasure
Not lit
RAM memory error
5
EEPROM memory
error
Turn the power supply OFF and ON again. If the same error is displayed
even after the power is turned OFF and ON, it is necessary to replace
the memory. If normal operation is restored by turning the power supply
OFF and ON, it is possible that there is noise interference. Check that
there is nothing in the vicinity that may be the source of noise.
s.err (S.Err)
(Flashes at 0.5-s intervals)
Not lit
Input error or input
range exceeded
All outputs turn OFF.
Check for incorrect input wiring, for disconnected power lines, for shortcircuiting, and the input type.
Bring the input value within range.
99999
(Flashes at 0.5-s intervals)
Not lit
Greater than
displayable range
-19999
(Flashes at 0.5-s intervals)
Not lit
Less than displayable
range
This is not an operational error. These messages are displayed when a
value to be displayed lies outside the displayable range, even if the input
value is within the input range and the range for which measurement is
possible.
Bring the input value and display value within range.
Panel
indicators
e111 (E111)
e111 (E111)
1/32 DIN Digital Panel Meter
K3GN
K-25
Additional Information
■ Application as a Process Meter
The initial settings required when using the K3GN a process meter are explained below using the following example.
Setting Example
Initial Setting Procedure
Inputs in the range 1 to 5 V are scaled to the range 0 to 100.0 kg and
displayed. If the measurement value goes over 70.0 kg, output 1
turns ON. If the measurement value goes below 50.0 kg, output 2
turns ON.
1. Check the wiring and turn ON the power.
2. Set analog input as the input type.
If a measurement value is displayed (operation level), move to the
initial setting level by holding down the Level Key for 3 s min.
Set parameter in-t to analg.
3. Set the analog range to 1 to 5 V.
Set parameter range to 1-5.
4. Set the scaling values.
Set parameter inp.1 to 1.000.
Set parameter dsp.1 to 0.
Set parameter inp.2 to 5.000.
Set parameter dsp.2 to 1000.
5. Set the position of the decimal point.
Set parameter dp to %%%%.%.
6. Operating action for OUT1 and OUT2 set values.
Set parameter out1.t to hi.
Set parameter out2.t to lo.
7. Set OUT1 set value to 70.0 and OUT2 set value to 50.0.
If an initial setting level parameter is displayed, press the Level
Key for 1 s min. to return to the operation level.
Set parameter out1 to 70.0.
Set parameter out2 to 50.0.
8. Start actual operation.
Displayed
value
100.0 kg
0.0 kg
5.000 V
1.000 V
Output 2
Input value
Output 1
Normal
50.0 kg
70.0 kg
■ Application as a Tachometer
The initial settings required when using the K3GN as a tachometer are explained below using the following example.
Speed (m/min) = 5654.866... × Input frequency (Hz)
Setting Example
The speed of a conveyor belt is displayed in m/min units. For every
revolution of the shaft, 4 pulses are output. The diameter of the axis
of rotation is 12 cm. If the Rotational speed goes over 10.500 m/min,
output 1 turns ON. If the speed goes below 9.500 m/min, output 2
turns ON.
Output
2
12 cm
Normal
9.500
m/min
Output
1
10.500
m/min
Deciding the Scaling Value
Rotational speed (m/min)
= π × Diameter (m) × Revolutions per
minute (rpm)
Revolutions per minute (rpm) = Input frequency (Hz) ÷ Number of
pulses per revolution × 60
Applying the appropriate values to these 2 equations gives: Speed
(m/min) = 5.654866... × Input frequency (Hz)
Multiply by 1,000 to display the first 3 digits to the right of the decimal
point.
K-26
1/32 DIN Digital Panel Meter K3GN
Displayed
value
56549
10 Hz
Input value
To limit inaccuracies due to scaling, select a round number
(e.g., 10) as the input value and select a display value of as
many digits as possible. In this example, scaling is performed
so that an input value of 10 gives a displayed value of 56549.
Initial Setting Procedure
Panel
indicators
1. Check the wiring and turn ON the power.
2. Set pulse input as the input type.
If a measurement value is displayed (operation level), move to the
initial setting level by holding down the Level Key for 3 s min.
Set parameter in-t to pulse.
3. Set the pulse frequency to 30 Hz.
The input pulse frequency for the application is approximately
2 Hz and so can be assumed not to exceed 30 Hz. Set parameter
p-fre to 30.
4. Set the scaling values.
Set parameter inp to 10.
Set parameter dsp to 56549.
5. Set the decimal point.
Set parameter dp to %%.%%%.
6. Operating action for OUT1 and OUT2 set values.
Set parameter out1.t to hi.
Set parameter out2.t to lo.
7. Set OUT1 set value to 10.500 and OUT2 set value to 9.500.
If an initial setting level parameter is displayed, press the Level
Key for 1 s min. to return to the operation level.
Set parameter out1 to 10.500.
Set parameter out2 to 9.500.
8. Start actual operation.
1/32 DIN Digital Panel Meter
K3GN
K-27
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
Cat. No. N101-E1-03
K-28
In the interest of product improvement, specifications are subject to change without notice.
1/32 DIN Digital Panel Meter K3GN