Main Part Specifications - Omron KM1 User Manual

Main part specifications

Model PMU1A (Electric power)
Item
Accuracy Voltage ±1.0% FS ±1 digit
(*1) * However, intra Vtr voltage shall be ±2.0% FS ±1digit under the same
conditions.
Current ±1.0% FS ±1 digit
* However, S-phase current of 3-phase 3-wire and N-phase current shall be
±2.0% FS ±1 digit under the same conditions.
Electric power Active power, reactive power
(Active power, ±2.0% FS ±1 digit (power factor)
reactive power)
Frequency ±0.3 Hz ±1 digit
Power factor (*2) ±5.0% FS
(Ambient temperature of 23°C, standard input, standard frequency, power
factor = range of 0.5 to 1 to 0.5)
Temperature
Influence by temperature ±1.0% FS (Ratio to measurement value at ambient temperature of 23°C, with
standard input, standard frequency, and power factor of 1, within the working
temperature range)
Influence by frequency ±1.0% FS (Ratio to measurement value at ambient temperature of 23°C, with
standard input, standard frequency, and power factor of 1, within the standard
frequency range of ±5 Hz)
Influence by higher harmonic ±0.5% FS (Error generated when the 2nd-, 3rd-, 5th-, 7th-, 9th-, 11th-, or
wave 13th-order higher harmonic wave is superimposed over the basic wave at
ambient temperature of 23°C with the content rates of 30% in current and 5%
in voltage)
Low-cut current setting value Variable in units of 0.1% between 0.1-19.9% of the standard input
Sampling frequency 100 ms (with measurement voltage at 50 Hz), 83.3 ms (with measurement
voltage at 60 Hz)
Insulation resistance Insulation resistance value of 20 MΩ (500 VDC)
Voltage withstood Common: 2000 V for 1 minute, place to which the voltage is applied: Between all terminals as a whole and the case
PMU1A
PMU2A
EMU8A
CTD8E
Vibration tolerance Half amplitude of 0.35 mm, acceleration of 50 m/s
Frequency of 10 to 55 Hz, sweeping along three axes, 5 min x 10 times each
2
Shocks withstood 150 m/s up/down, left/right, front/back in 6 directions, 3 times each
Mass Approximately 230 g
Memory protection EEPROM (non-volatile memory) Number of write times: :1 million times
Event input Number of
input points
Input without
voltage
Input with
voltage
Temperature Number of
input input points
Applicable
thermistor
Combination Connection to KM1-EMU8A-FLK can support 7 event input points and 1
temperature input point.
Transistor Number of Common to 3 open collector points (OUT1, OUT2, OUT3)
output other points
Output 30 VDC ,30 mA
capacity
ON residual 1.2 V or less
voltage
OFF time 100 μA or less
leakage
current
Integrated 1 pulse output when the power amount in the set pulse output voltage is
power reached
amount 1,10,100,1 k,2 k,5 k,10 k,20 k,50 k,100 k (W h)
pulse output
Alarm output Outputs an alarm based on the set alarm output threshold
Return Automatic return only
method
KM1
PMU2A (Power
two-system)
: Between power supplies as a whole and outputs of RS-485/USB/transistor as a whole
Between all power supplies as a whole and current/voltage inputs as a whole
: Between current/voltage inputs as a whole and outputs of RS-485/USB/transistor as a whole
: Between power supplies as a whole and outputs of RS-485/USB/transistor as a whole
Between all power supplies as a whole and current/voltage inputs as a whole
: Between current/voltage inputs as a whole and outputs of RS-485/USB/transistor as a whole
Between current/voltage input 1 and voltage input 2 as a whole
: Between power supplies as a whole and outputs of temperature input/RS-485/USB/transistor as a whole
: Between current inputs as a whole and USB/relay outputs as a whole
2
Model KM1/KE1 combination list
EMU8A (Pulse/temperature) CTD8E (CT expansion)
±1.0% FS ±1 digit
* However, S-phase current of
3-phase 3-wire and N-phase
current shall be ±2.0% FS ±1
digit under the same
conditions.
Active power, reactive power
±2.0% FS ±1 digit (power
factor)
±5.0% FS (Ambient
temperature of 23°C,
standard input, standard
frequency, power factor =
range of 0.5 to 1 to 0.5)
After passage of 2 hours after power
distribution, ±5°C
(However, after compensation based
on the environment of the ambient
temperature)
±1.0%FS (Ratio to measurement ±1.0%FS (Ratio to
value at ambient temperature of measurement value at
23°C within the working temperature ambient temperature of 23°C,
range) with standard input, standard
frequency, and power factor
of 1, within the working
temperature range)
±1.0%FS (Ratio to
measurement value at
ambient temperature of 23°C,
with standard input, standard
frequency, and power factor
of 1, within the standard
frequency range of ±5 Hz)
±0.5% FS (Error generated
when the 2nd-, 3rd-, 5th-,
7th-, 9th-, 11th-, or 13th-order
higher harmonic wave is
superimposed over the basic
wave at ambient temperature
of 23°C with the content rates
of 30% in current and 5% in
voltage)
Variable in units of 0.1%
between 0.1-19.9% of the
standard input
100 ms 100 ms (with measurement
voltage at 50 Hz), 83.3
ms(with measurement voltage
at 60 Hz)
7 points
ON time current: 15 mA or less
ON time residual voltage: 8 V or less
OFF time leakage current of 1.5 mA or
less
H level: 4.75 to 30 VDC
L level: 0 to 2 VDC
Input impedance: Approximately 2 kΩ
1 point
Model E52-THE5A
Color code (blue): -50 to 50°C
Color code (black): 0 to 100°C
KE1
A-3