KM50-E1-FLK Datasheet PDF - OMRON


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KM50-E1-FLK
OMRON

Part Number KM50-E1-FLK
Description Smart Power Monitor
Page 15 Pages

KM50-E1-FLK datasheet pdf
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Smart Power Monitor
KM50-E1-FLK
CSM_KM50-E1-FLK_DS_E_1_2
• High-performance Power Monitor Suitable for On-panel Mounting and Display
• Assists Energy-saving Analysis
Energy classification for wasted standby and stopped power.
(Classification based on external inputs is also supported.)
Power and current can be measured simultaneously.
Measurement of flow rates with a pulse conversion function.
Simple temperature measurements with Temperature Sensor included in the Unit.
• High-precision Measurements
Measurement of generated power (regenerative power),
leading reactive power, lagging reactive power, and consumed power.
Power measurements on the primary side of inverters,
which are widely used to save energy.
Automatic range switching for accurate measurement of standby and stopped power.
• Energy-saving Functions
Conversion to monetary cost. (Also used for classified standby and stopped power.)
Alarm outputs can be selected for active power, reactive power,
regenerative power, current, voltage, or power factor.
The Power Monitor can log measurement data and supports Modbus communications.
For the most recent information on models
that have been certified for safety standards,
refer to your OMRON website.
• Installation and Settings
Direct measurement of three-phase, four-wire, 400-V line voltage.
Simple measurements without voltage wiring.
Incorrect voltage wiring detection.
Note: Not valid for billing applications.
Refer to “Safety Precautions” on page 10.
Features
Functions That Support Energy-saving Analysis
Energy Classification (First in the Industry)
Three-state Energy Classification with three-color
displays lets you know where energy can be saved.
1) Three-state Energy Classification divides the total power
consumption into stopped power, standby power, and operating
power depending on the power usage conditions so that you can
see where energy can be saved.
2) Three-state Energy Classification can be linked to three
independent outputs for operating, standby, and stopped status.
The criteria can be set as the threshold value of the power, current,
or voltage, or as an external input.
It is also possible to change the three color display.
Three-state Energy Classification
Measurement value
HIGH threshold
Hysteresis
Hysteresis
LOW threshold
Operating status
Standby status
Stopped status
Backlight color
Operating
Standby
Stopped
Time
: Green
: Orange
: Red
Note: This is just an example of setting the threshold values.
Pulse Measurement and Conversion
1) Flow rates can be measured at the same time as power by
inputting flow pulses. (Two inputs are supported.)
To support energy-saving analysis, power consumption can be
compared with the flow rate of air, gas, or other fluids with a single
Unit.
2) Pulse inputs can be counted, or used to measure the ON time.
The consumption rate of a device can be measured by dividing the
power consumption with the measured number of operations or
operation time.
Pulse Input Count Measurement
Pulses
1
23
Pulse Input ON Time Measurement
KM50-E
Pulses
10 s 3 s 5 s
KM50-E
Simple Temperature Measurement
KM50 Power Monitors have a thermister chip built onto the panel
surface for easy measurement of the panel surface temperature.
The temperature display can be offset to match the room temperature
to manage trends.
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KM50-E1-FLK
Energy Management with High-precision Measurements
Total Regenerated Energy Measurement
In addition to the consumed energy (total regenerative power consumption),
generated power (total regenerative energy) can also be measured.
A single Power Monitor can measure equipment that effectively uses
power generated by reverse motor rotation.
Total Reactive Power Measurement
In addition to instantaneous reactive power, the total leading or
lagging power consumption can also be measured.
Together with peak power measurements, this function aids with
monitoring the power distribution equipment.
Automatic Range Switching
Automatic range switching enables high-accuracy measurements
even for microcurrents.
Standby and stopped power can be accurately measured.
When measured at the distribution board, the total of the distributed
values is almost the same as the base measurement.
Previous product
New KM50-series Power Monitor
30 30
0 20 40 60 80 100
Current (A)
±1A ±1A
05
40 60 80 100
Current (A)
±75mA
±1A
For currents below approx. 5% of the rated
current, the Power Monitor automatically
changes to microcurrent measurement
mode to accurately measure microcurrents.
You can measure microcurrents of ±75 mA with a CT with a rated current of 100 A. (Reference Value)
You can measure microcurrents of ±4 mA with a CT with a rated current of 5 A. (Reference Value)
Note: Reference values are typical values. Actual values may vary.
Inverter Compatibility
Measurements can be made on the primary side of an inverter.
Power consumption can be measured even after installing inverters
which are widely used to save energy. This enables you to accurately
grasp the effect obtained by introducing the inverter.
Functions That Support Saving Energy
Conversion to Monetary Cost
The total power consumption can be converted to the equivalent
monetary cost.
Energy consumption classified as standby and stopped power can
also be converted to the cost.
Displaying the cost of the wasted energy can be used to support
energy-saving measures.
Target
Total Power Consumption
Standby power
Stopped power
Converted display
Cost of total power consumption
Cost of standby power
Cost of stopped power
Alarm Output
An alarm can be output when active power exceeds a certain limit. There
are two outputs; a pulse output and an output for alarm selection.
Alarms can also be set up for generated power (regenerative power),
current, voltage, power factor, or reactive power to assist plant monitoring.
Active power threshold
Active power
measurement value
Active power alarm
output ON
Active power alarm
output OFF
Output
ON.
Output
ON.
Built-in Logging Function
The total power consumption can be saved in internal
memory every 5 minutes, hour, day, or month.
Data can be saved as follows: 5-minute data for two days, 1-hour data
for eight days, 1-day data for month, and 1-month data for one year.
Data Logging Cycle and Amounts
Every 5 min: 48 hours of data *1
Total power consumption
Every hour: 25 hours of data *2
Every day: 8 days of data
Every month: 13 months of data
Active power, current, voltage, and
maximum/minimum power factors
Every day: 8 days of data
*1. The data that is logged with a 5-minute cycle can be read out only by using
RS-485 communications.
Readout is not possible with key operations on the Power Monitor.
*2. Up to 48 hours of data can be read out using communications.
Functions That Support Installation and Settings
Direct Measurement of Three-phase, Four-wire,
400-V Line Voltage
Measurement is possible for single-phase two-wire, single-phase three-wire,
three-phase three-wire, and three-phase four-wire power.
You can directly measure the voltage of a three-phase, three-wire 400-V line.
Simple Measurement
The simple measurement function calculates the power from a
fixed voltage and the measured current using a fixed power factor.
This function can be used when the voltage cannot be input to the
KM50 due to onsite conditions or wiring arrangements.
If the Simple Measurement parameter is set to ON, the fixed
voltage and fixed power factor can be set.
The simple measurement function can be used to get an
approximate power consumption of an installed circuit without
wiring and measuring the voltage. Therefore, you must set the
voltage and power factors to appropriate levels.
Fixed values are used for the voltage and power factor, so the
accuracy specifications do not apply.
* Set the voltage to 100 V when performing simple measurements on
a single-phase, three-wire power supply.
Incorrect Wiring Detection
Incorrect voltage wiring can be detected.
If any mistakes were made during installation, they are automatically
detected, reducing the time required for checking after installation.
This also reduces the risk of having to restart when a mistake is found.
Display for Faulty Wiring
Communications
Up to 99 KM50 Power Monitors can be connected using RS-485 Modbus.
The energy use of each device can be managed with minimal wiring.
CompoWay/F: 31 Power Monitors
Modbus: 99 Power Monitors
RS-485
Terminating
resistance
Transmission distance: 500 m
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KM50-E1-FLK
Ordering Information
KM50-E Smart Power Monitor
Model
KM50-E1-FLK
Applicable circuits
Power supply
voltage (shared)
Single-phase, 2-wire: 100 to 480 VAC
Single-phase, 3-wire: 100/200 VAC
Three-phase, 3-wire: 100 to 480 VAC
Three-phase, 4-wire: 85 to 277 VAC
100 to 240 VAC
Dimensions
96 × 48 × 93 (H × W × D)
Communications
Protocol
RS-485
CompoWay/F: 31 nodes, Modbus:
99 nodes (Both are supported by
the same model.)
CTs
These CTs must be used with the KM50/KM20-B40/-FLK. Do not use them with any other products.
Model
Rated primary current
KM20-CTF-5A
5A
KM20-CTF-50A
50 A
KM20-CTF-100A
100 A
KM20-CTF-200A
200 A
KM20-CTF-400A
400 A
KM20-CTF-600A
600 A
Note: CT Cables are not included with the CTs.
Rated secondary current
Special output
Installation
Installed separately
CT Cable
Model
Cable length
KM20-CTF-CB3
3m
Note: Either use the CT Cable specified by OMRON or use 1.25-B3A crimp terminals and AWG22 wire from J.S.T. Mfg. Co., Ltd.
Mounting Brackets (for DIN Track or Magnet Mounting)
Model
Specification
KM50-OPT-ED1 *
DIN Track mounting
KM50-OPT-EM1 *
Magnet mounting
* You can mount one KM50-E or two KM50-C Power Monitors.
Specifications
Ratings
Item
Model
KM50-E
Applicable circuit
Single-phase two-wire, single-phase three-wire, three-phase three-wire, and three-phase four-wire power
Rated power supply voltage
100 to 240 VAC, 50/60 Hz
Allowable supply voltage range
85% to 110% of rated power supply voltage
Allowable frequency range
45 to 65 Hz
Power consumption
7 VA max.
Rated input voltage
100 to 480 VAC (single-phase, 2-wire): Line voltage
100/200 VAC (single-phase, 3-wire): Phase voltage/line voltage
100 to 480 VAC (3-phase, 3-wire): Line voltage
58 to 277 VAC (3-phase, 4-wire):
Phase voltage
Rated input current
5 A, 50 A, 100 A, 200 A, 400 A, or 600 A (primary current of Special CT) *
Rated frequency
50/60 Hz
Rated input
Rated input power
With 5-A CT: 4 kW
With 100-A CT: 80 kW
With 400-A CT: 320 kW
With 50-A CT: 40 kW
With 200-A CT: 160 kW
With 600-A CT: 480 kW
Allowable input voltage 110% of rated input voltage (continuous)
Allowable input current 120% of rated input current (continuous)
Rated input load
Voltage input: 0.5 VA max. (excluding power supply)
Current input: 0.5 VA max. (for each input)
Time
2010 to 2099 (Adjusted for leap year.)
Accuracy: ±1.5 min/month (at 23 °C)
Time backup period
7 days (without power supply, at 23 °C)
Ambient operating temperature
10 to +55 °C (with no condensation or icing)
Storage temperature
25 to +65 °C (with no condensation or icing)
Ambient operating humidity
25% to 85%
Storage humidity
25% to 85%
Altitude
2,000 m max.
Installation environment
Overvoltage category and measurement category: 2, Pollution level: 2
* A special output signal is output as the secondary current from the Special CT.
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KM50-E1-FLK
Performance
Smart Power Monitor
Item
Model
KM50-E
Voltage
±1.0% FS ±1 digit (at ambient temperature of 23 °C, rated input, and rated frequency).
However, the accuracy is ±2.0% FS ±1 digit for the Vtr line voltage for three-phase, three-wire power and the
Vrs line voltage for single-phase, three-wire power under the same conditions.
Current
±1.0% FS ±1 digit (at ambient temperature of 23 °C, rated input, and rated frequency).
However, the accuracy is ±2.0% FS ±1 digit for the phase-S current for three-phase, three-wire power and the
phase-N current for single-phase, three-wire power under the same conditions.
Accuracy *1
Active power
Reactive power
±2.0% FS ±1 digit (at ambient temperature of 23 °C, rated input, rated frequency, and a power factor of 1)
Reactive power formula: Reactive power = v × i × sin θ
* "v" is the instantaneous voltage and "i" is the instantaneous current.
θ is the phase difference between the voltage and current.
Frequency
±0.3 Hz ±1 digit (at ambient temperature of 23 °C, rated input, and rated frequency)
Power factor
±5.0% FS ±1 digit (at ambient temperature of 23 °C, rated input, rated frequency, and power factor = 0.5 to 1
to 0.5)
Power factor formula: Power factor = Active power/Apparent power
* Apparent power = (Active power)2 + (Reactive power)2
Temperature
±5 °C two hours after the power is turned ON (after setting the offset to match the ambient environment)
Low-cut current set value
0.1% to 19.9% of rated current input (in 0.1% increments)
Sampling cycle
100 ms for measurement voltage at 50 Hz and 83.3 ms for measurement voltage at 60 Hz
Temperature influence *1
±1.0% FS ±1 digit (percentage of power within operating temperature range, at ambient temperature of 23 °C,
rated input, rated frequency, and power factor of 1)
Frequency influence *1
±1.0% FS ±1 digit (percentage of power within rated frequency ±5 Hz, at ambient temperature of 23 °C, rated
input and power factor of 1)
Influence of harmonics *1
±0.5% FS ±1 digit (at ambient temperature of 23 °C, error for superimposed 2nd, 3rd, 5th, 7th, 9th, 11th, and
13th harmonics for a content percentage of 30% for current and 5% for voltage of the basic wave)
Insulation resistance
1) Between all power circuits and all of the RS-485 terminals, OUT1, OUT2, event inputs, I/O commons, and
transistor outputs: 20 MΩ max. (at 500 VDC)
2) Between all current and voltage inputs and all of the RS-485 terminals, OUT1, OUT2, event inputs, I/O
commons, and transistor outputs: 20 MΩ max. (at 500 VDC)
3) Between all current and voltage inputs and the front case: 20 MΩ max. (at 500 VDC)
4) Between all power circuits and the front case: 20 MΩ max. (at 500 VDC)
Dielectric strength
1) Between all power circuits and all of the RS-485 terminals, OUT1, OUT2, event inputs, I/O commons, and
transistor outputs: 2,800 VAC for 1 min
2) Between all current and voltage inputs and all of the RS-485 terminals, OUT1, OUT2, event inputs, I/O
commons, and transistor outputs: 3,600 VAC for 1 min
3) Between all current and voltage inputs and the front case: 3,600 VAC for 1 min
4) Between all power circuits and the front case: 2,800 VAC for 1 min
Vibration resistance
Single amplitude: 0.35 mm, Acceleration: 50 m/s2, Frequency: 10 to 15 Hz, 10 sweeps for 8 min each along
three axes
Shock resistance
150 m/s2, 3 times each in 6 directions (up/down, left/right, forward/backward)
Weight
Approx. 250 g (Power Monitor only)
Degree of protection
Front panel: IP66 (when mounted to a panel), Rear case: IP20, Terminal section: IP00
Memory backup
EEPROM (non-volatile memory), No. of writes: 1,000,000 times
Compliant standards
EN61010-1 (IEC61010-1), EN61326-1 (IEC61326-1), UL61010-1, CAN/CSA-C22.2 No.61010-1
Number of inputs
Two event inputs
The two event inputs use the same common terminal
Event inputs
Voltage input
No-voltage input
High level: 4.75 to 30 VDC
Low level: 0 to 2 VDC
Input impedance: Approx. 2 kΩ
ON resistance: 1 kΩ max.
OFF resistance: 100 kΩ min.
ON residual voltage: 8 V max.
ON current (at 0 Ω): 10 mA max.
Minimum input time
5 ms
Number of outputs
5 open-collector outputs (two total power consumption pulse output or alarm output, and three, 3-state outputs)
The total power consumption pulse output and alarm output use the same common terminal.
The three, 3-state outputs use the same common terminal.
Transistor outputs Output capacity
30 VDC, 30 mA max.
ON residual voltage: 12 V max.
OFF leakage current: 100 μA max.
Alarm output delay *2
OFF delay: 0.0 to 99.9 s, ON delay: 0.0 to 99.9 s
Characteristic operating
time *3
±200 ms
Communications method RS-485 (2-wire half-duplex)
Sync method
Start-stop
Unit number setting
CompoWay/F: 0 to 99, Modbus: 1 to 99
Baud rate
1.2, 2.4, 4.8, 9.6, 19.2, 38.4 kbps
Transmission code
CompoWay/F: ASCII, Modbus: Binary
Communications
Data length
Stop bit length
7, 8 bits
1, 2 bits
Vertical parity
Even, odd, or none
Maximum transmission
distance
500 m
Maximum number of
connected Power Monitors
CompoWay/F: 31, Modbus: 99
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