M
Active power
Pro Level
Pro Level
Pro Level
Basic Level
Basic Level
U
S
M
＋
S
M
＋
S
Pulse input
count
Total integral
power
consumption
Current 1
Current 2
Current 3
Moving average
current 1
Moving average
current 2
Moving average
current 3
Voltage 1
Voltage 2
Electric power
consumption rate
Pulse input
ON time
S
Frequency
CO
2
exchanged
value
Charge
conversion value
Pulse conversion
value 1
Pulse conversion
value 2
*4
*4
*4
Power ON
Power ON
Time
S
M
＋
S
M
＋
S
S
M
＋
S
S
M
＋
S
M
＋
S
M
＋
S
M
＋
S
Voltage 3
Reactive power
Power factor
0
cnt
0.000
Hwh p
00-00
h-on
S
S
S
S
Total integral
total reactive
power consumption
Total integral
lagging reactive
power consumption
0.0
temp
0.0
kvh.a
0.0
kvh.g
Total integral
leading reactive
power consumption
0.0
kvh.d
Total integral
regenerated
power consumption
0.0
-kwh
Product
information
Simple
temperature
c1flk
v2.0
*Example of 3-phase 3-wire
When the setting is 1-phase 2-wire, the current 2, 3 and the voltage 2, 3 are not displayed.
When the setting is 1-phase 3-wire, the 2nd. display of current and voltage changes. (e.g.
a-s
→
a-n
)
■
State Transition
■
Unit to save each measured value
Basic Level
Basic Level
Pro Level
Pro Level
M
U
Applicable
circuit type
S
M
＋
S
M
＋
S
M
＋
S
Event input
setting
S
Measurement
start time
Current alarm
output
Measurement
end time
Dedicated
CT type
Rated primary
current value
Current low-cut
value
Pulse output
unit
Display refresh
period
Pulse conversion 1
setting
Charge
conversion setting
Simple
measurement
Pulse conversion 2
setting
Moving average
time Setting
Time setting
VT setting
Initialization
CO
2
conversion
factor
p.csp
30.ei5
n-o
33.in1
00-00
35.5tc
-w
60.i.sl
S
Integral power
consumption
saving selection
Simple
temperature setting
Measurement parameter
display selection
Voltage alarm
output
S
M
＋
S
M
＋
S
S
S
M
＋
S
M
＋
S
S
S
M
＋
S
M
＋
S
S
S
M
＋
S
M
＋
S
S
S
M
＋
S
M
＋
S
S
S
M
＋
S
M
＋
S
S
M
＋
S
S
M
＋
S
S
M
＋
S
S
M
＋
S
S
M
＋
S
S
c
65.d-u
Event input 1
NPN/PNP input
mode setting
pnp
31.pn1
Incorrect voltage
wiring detection
on
64.v-e
Event input 2
NPN/PNP input
mode setting
Event input 1
N-O/N-C input
mode setting
Event input 2
N-O/N-C input
mode setting
Display lighting
time
pnp
32.pn2
0
63.dsp
on
62.d.sl
Averaging times
S
S
S
M
＋
S
M
＋
S
M
＋
S
M
＋
S
M
＋
S
M
＋
S
M
＋
S
compf
80.psl
Protocol
select
1
8 lu.no
Unit No.
9.6k
82.bp5
Baud rate
7
83.len
Data bit
length
2
84.5bt
Stop bit
length
even
85.prt
Vertical parity
20
86.5dw
Time to wait
for sending
S
S
S
S
R
egenerated
power alarm output
24-00
36.etc
80.0
53.r.al
Reactive power
alarm output
Power factor
alarm output
80.0
57.q.al
100
56.pf.a
110.0
55.v.al
110.0
54.a.al
Output terminal 1
function setting
p.out
50.o1
*11
*11
*11
*11
*11
n-o
34.in2
Automatic rotation
setting
off
61.rtt
*12
Active power
alarm output
80.0
52.p.al
*11
*10
*9
*8
*8
*7
*13
0
prtct
Protect setting
O
＋
M
(3 sec min.)
Protect
Protect
Setting Mode
Setting Mode
O
The KM50 model has a function to save various measured values in EEPROM every five minutes, every day
or every month. The list of measured values and saving units is shown below:
C
Measurement Mode
Measurement Mode
M
(3 sec min.)
Measurement start
M
(3 sec min.)
Measurement stop
Setting Mode
Setting Mode
Operation Setting Mode
Operation Setting Mode
Measured value
Saving
period
Remarks
Integral power consumption
Active power, current, voltage and
power factor
(Maximum and minimum values)
Moving average current
(Only the maximum values)
Pulse input count
Electric power consumption rate
Pulse input ON time
Integral regenerated power consumption
Integral reactive power consumption
Total pulse count inputs
5 min.
1 hour
1 day
1 month
1 day
5 min.
1 day
5 min.
5 min.
Save two days’ measured values every 5 min.
Save 25 hours’ hourly values which are converted from
measured values saved every 5 min.
Save 8 days’ values measured between 00:00 and 24:00.
Save 13 months’ values measured for a month.
Save 8 days’ values measured between 00:00 and 24:00.
(After saving, measured values are reset.)*
ー
Save the current maximum values of the moving average
time.
(The moving average current with a product Ver.3.0.)
Save two days’ measured values every 5 min.
Save 8 days’ values measured between 00:00 and 24:00.
Save two days’ measured values every 5 min.
Save only items selected in the setting.
Overwrite save the measured value every 5 min.
Note 1. At the time of power failure, the clock time data is retained for 7 days.
Note 2. User can check the data every 5 min. only through communication.
■
Error indication
■
Troubleshooting
Description of error
Built-in memory error
(RAM error) (*1)
Display
Phenomenon
Description
Point to be checked
Voltage and current are measured
but electric power is not correctly
measured.
Has CT (Current
Transformer) been
correctly wired
(not in reverse)?
If negative electric power is measured, it might be
all the CTs have been mounted oppositely. On the
other hand, if the measured value is nearly 0, it might
be one of the CTs has been mounted oppositely.
Is the voltage
phase sequence
correct?
If the voltage phase sequence is not correct,
electric power cannot be measured correctly.
Perform correct wiring.
e-m1
Operation
Measurement stop, operation disabled
Restoration method
Hardware repair (*2)
EEPROM error (*1)
e-m2
Measurement stop, operation disabled Hardware repair (*2)
EEPROM data failed (*1)
e-m3
Measurement stop, operation disabled Hardware repair (*2)
*1 When any of
e-m1
–
m4
errors occurs, all outputs stop and any key operation is not accepted.
*2 Consult your OMRON representative.
*3 An error will occur when the input of voltage exceeds 110% of the rated value, current exceeds 120% of
the rated value, frequency is below 45 Hz or more than 65 Hz.
When the voltage input is 20 V or less, frequency error isn’t displayed.
When VT is set, the set value of secondary voltage becomes the rated voltage.
*4 For
e-54
error, only when the incorrect voltage wiring detection is set to ON, the error is displayed.
e-m4
Measurement stop, operation disabled Hardware repair (*2)
KM50 internal clock time has not
been set.
e-t1
Indicates error at startup and “STOP” is
turned ON. Measurement stops and
operation disabled during error indication.
Time setting
Excessive voltage input (*3)
Calibration value error (*1)
e-s1
Displays error and measurement value
alternately and continues measurement.
Restore the input signal
within to the rated range.
Excessive current input (*3)
e-s2
Displays error and measurement value
alternately and continues measurement.
Restore the input signal
within to the rated range.
Frequency input error (*3)
e-s3
Displays error and measurement value
alternately and continues measurement.
Restore the input signal
(voltage) within to the
rated range.
Incorrect wiring detection (*4)
e-s4
Displays error and measurement value
alternately and continues measurement.
Correct the input signal
(voltage) wiring in phase
sequence.
Hour-Minute
Alternate display
(1.5 sec auto)
Month/Day
Months ago
Year-Month
MAX/MIN
Active power
Unit
Integral power
consumption
Unit
Integral power
consumption
Unit
Integral power
consumption
Alternate display
(1.5 sec auto)
*1
Hour-Minute
Alternate display
(1.5 sec auto)
Month/Day
MAX/MIN/AVE
Current
*3
*2
Days ago
Alternate display
(1.5 sec auto)
Month/Day
Hours ago
Day-Hour
Alternate display
(1.5 sec auto)
Unit
Electric power
consumption rate
Days ago
Alternate display
(1.5 sec auto)
Month/Day
*4
Communication Setting Mode
Communication Setting Mode
S
M
＋
S
M
＋
S
S
S
S
S
M
＋
S
M
＋
S
S
S
M
＋
S
M
＋
S
S
S
M
＋
S
M
＋
S
S
S
M
＋
S
M
＋
S
S
S
M
＋
S
M
＋
S
S
S
M
＋
S
M
＋
S
S
M
＋
S
M
＋
S
M
＋
S
kw
kwh
a-r
a-5
a-t
v-r5
v-st
hz
co2
jpy
m3-1
m3-2
03 05
0.000
0.0
0.000
0.000
0.000
0.0
0.0
0.000
0.000
0.000
0.000
17-15
55.0
v-tr
kvar
0.0
pf
1.00
0.000
prolv
S
S
M
＋
S
S
M
＋
S
S
M
＋
S
ma-r
ma-s
0.000
0.000
0.000
ma-t
*1
*1
*1
*1
*1
*1
*3
*2
*3
*3
S
S
M
＋
S
M
＋
S
S
S
M
＋
S
S
M
＋
S
S
M
＋
S
S
M
＋
S
S
M
＋
S
S
M
＋
S
S
M
＋
S
S
M
＋
S
S
M
＋
S
S
M
＋
S
S
M
＋
S
S
M
＋
S
M
＋
S
3p3w
00.typ
prolv
100a
01.c.rg
5
02.5ct
none
03.v.rg
04.cut
100
05.pl5
1.0
06.ref
8
07.avg
off
08.5mp
10.000
11.chg
c-1.d
0.6
12.cv1
c-2.d
13.cv2
0.387
10.co2
2010
14.tim
5et
15.ini
S
M
＋
S
S
M
＋
S
120
16.avt
＊
5
＊
6
U
U
U
0.000
Hwh p
U
M
＋
U
M
M
＋
U
M
＋
U
＊４
U
U
0.000
kw
U
M
＋
U
M
M
＋
U
M
＋
U
U
U
U
U
M
＋
U
M
＋
U
M
＋
U
＊1
S
S
03 04
00-00
02 25
00-00
02 25
00-00
03 04
00-00
03 05
00-00
S
0.0
kwh
U
M
＋
S
M
00000
00000
U
U
U
M
＋
U
M
＋
U
10-03
0 m
09-02
-13 m
M
＋
U
10-02
- 1 m
＊2
S
M
＋
S
U
U
U
M
＋
U
M
＋
U
0 d
M
＋
U
S
S
S
U
U
U
M
＋
U
M
＋
U
5-17
0 h
4-16
-25 h
M
＋
U
5-16
- 1 h
M
＋
S
M
＋
S
03 05
- 8 d
02 25
- 1 d
03 04
- 8 d
02 25
- 2 d
03 03
- 1 d
03 04
M
03 05
00-00
M
＋
S
M
＋
S
M
＋
S
＊５
none
03.v.rg
none
03.v.rg
U
110
v.rg2
M
U
＊６
off
08.smp
on
08.smp
ON時：
O
at OFF：
O
110.0
vlt
pf
O
1.00
M
U
＊７
10.000
11.chg
U
10.000
rate
O
O
jpy
unit
jpy
unit
O
M
U
＊９
2010
14.tim
2010
14.tim
O
01 01
14.tim
O
00-00
14.tim
O
M
U
＊１１
80.0
52.p.al
80.0
ov.th
O
0.0
un.th
O
5.0
al.hys
O
3.0
of.dly
O
0.0
on.dly
O
M
U
＊１３
c
65.d-u
c
65.d-u
0.0
t.ad
O
O
＊１２
off
61.rtt
off
61.rtt
at ON：
O
3
rtim
O
M
U
＊１０
p.out
50.o1
p.out
50.o1
off
p.al
O
off
r.al
O
off
a.al
O
off
v.al
O
off
pf.a
O
off
q.al
O
M
＊８
c-1.d
12.cv1
c-1.d
targ
O
O
O
0001
slp
0000
dp
m3-1
unit
O
M
U
Current
U
U
0.000
a-r
U
M
＋
U
M
M
＋
U
M
＋
U
U
U
U
U
M
＋
U
M
＋
U
M
＋
U
S
S
02 25
00-00
03 05
00-00
-- --
-----
02 25
00-00
03 04
00-00
S
03 04
00-00
M
＋
S
M
＋
S
M
＋
S
U
M
＋
U
U
M
＋
U
03 05
00-00
S
03 05
00-00
M
＋
S
＊3
Active power
Maximum value
Minimum value
Maximum value
Minimum value
･
Example of active power
･
Alternately displays the time when maximum and minimum values were
recorded, and the maximum and minimum values, for each day.
･
Reactive power displays only the maximum and minimum values of the
current day.
･
Alternately displays the time when maximum and minimum values were
recorded, and the maximum and minimum values, for each day.
･
Moving average current displays only the maximum value.
minimum value is non-compliant. (display "-"mark)
Total integral
power consumption
10-digit display
Monthly integral
power consumption
for past 13 months
Daily integral
power consumption
for past 8 days
Hourly integral
power consumption
for past 25 hours
･
On monthly display, the 1st. display alternately displays Year-Month of when the integral power consumption
was recorded, and the value of integral power consumption. The 2nd. display alternately displays “how many
months ago” and a unit.
･
On daily display, the 1st. display alternately displays Month/Day of when the integral power consumption was
recorded, and the value of integral power consumption. The 2nd. display alternately displays “how many days
ago” and a unit.
･
On hourly display, the 1st. display alternately displays Date-Hour of when the integral power consumption was
recorded, and the integral power consumption. The 2nd. display alternately displays “how many hours ago”
and a unit.
Total integral
power consumption
･
Example of electric power consumption rate
･
The 1st. display alternately displays Month/Day
of when electric power consumption rate was re-
corded, and the electric power consumption rate.
The 2nd. display alternately displays “how many
days ago” and a unit.
Electric power
consumption rate
Simple
temperature setting
Temperature
unit
Temperature
correction
value
･
Sequentially set the temperature unit and
temperature correction value.
Automatic rotation
Automatic rotation
Transition time
･
When the automatic rotation is ON, set the
transition time.
Time setting
Year
Month/Day
Hour/Minute
･
Sequentially set the year, month/day and hour/minute.
Pulse conversion 1
setting
Factor setting 1
Decimal point
position setting 1
Pulse conversion
target 1
Display unit
setting 1
･
Example of pulse conversion 1 setting
･
Sequentially set the pulse conversion target, factor, decimal point position
and display unit.
Charge
conversion setting
Price unit setting
(Selection)
Rate setting
Price unit setting
(Arbitrariness)
･
Sequentially set the rate and price unit.
･
For the price unit, after choosing from options, user can
change it to any unit.
Active power
alarm output
Upper
threshold
Lower
threshold
Hysteresis
OFF-delay
ON-delay
･
Example of active power alarm output
･
Sequentially set upper/lower thresholds, hysteresis and OFF-/ON-delay.
･
The second displays of upper/lower thresholds and hysteresis switch to operating values
calculated from the threshold after 1.5 sec.
Simple
measurement
Fixed voltage
value.
at OFF :
O
Fixed power
factor value.
･
When the simple measurement is ON, sequentially
set the fixed voltage value and fixed power factor
value.
VT setting
at “
none
”
:
O
At selection
excluding “
none
”
:
O
VT
secondary side
voltage value
VT
primary side
voltage value
･
When selecting others than “
none
”
, sequentially set
VT primary side voltage and VT secondary voltage.
Output terminal 1
function setting
Active power
alarm output
At selection
excluding “
alarm
”
：
O
At “
alarm
”
:
O
･
Example of output terminal 1 function setting
･
When selecting “
alarm
”
, set each alarm to ON/OFF.
Regenerated
power alarm
output
Current
alarm output
Voltage
alarm output
Power factor
alarm output
Reactive power
alarm output
The measurement mode can display a past measured
value. (*1 to *4)
While it is in condition to display a past measured value,
display the date and time and a measured value in turn.
Please refer to a right figure.
Please refer to figure *1 to *4 for the transition that is in an internal state of *1 to *4.
Please refer to figure *5 to *13 for the transition that is in an internal state of *5 to *13.
Pro Level
