10
IM 77C01C01-01E
1st Edition : March 5.2001-00
Setting range
Rated
power
100W
200W
300W
400W
500W
600W
800W
1000W
1500W
2000W
3000W
4000W
5.556
×
10
-6
to 1.000
×
10
-1
kWh/pulse
6.667
×
10
-6
to 1.000
×
10
-1
kWh/pulse
1.000
×
10
-5
to 1.000
×
10
-1
kWh/pulse
1.334
×
10
-5
to 1.000
×
10
-1
kWh/pulse
2.000
×
10
-5
to 1.000
×
10
-1
kWh/pulse
2.667
×
10
-5
to 1.000
×
10
-1
kWh/pulse
(Note) When power OFF, integrated power on display is
maintained. As for integrated pulse output, error of
less than 1 pulse of integrated power arises.
Integrated pulse ON pulse width: Indicates ON time of pulse to
output. It can be set on parameter setting screen.
Set it so as not to exceed maximum ON pulse
widthe obtained by the formula below:
Maximum On pulse width (ms)
= pulse unit [kWh/pulse] x 3600 x 1000
2
-10
rated power [W] x 1.2
Setting range
Remarks
10 to 1270ms Set at 10ms unit
Initial value if not specified
50ms
●
Communication Output specs.
Output point:1 point (Commonly use for RS-485 and LON
communications)
Function:Refer “Communication Output”
●
Standard Performance
Accuracy rating:
Instantanous power, voltage r.m.s. value,
current r.m.s. value
±
0.5% of rated value (at
23
°
C
±
2
°
C)
(Equivalent JIS C 1102 0.5 grade)
Integrated power energy
±
(Power measuring a0.5% of rdg) (at
23
°
C
±
2
°
C)
Power factor
±
2% of rated value (at 23
°
C
±
2
°
C)
Analog output
±
0.5% of span (at 23
°
C
±
2
°
C)
(Equivalent JIS C 1111 0.5 grade)
However,
±
1% of span in case span is 50 to 80%
of rated power.
Optional integrationg function: This function integrates power
energy during the time optional integration starts
to operate and display it by digital. There are 2
methods to control optional integration, one is
made through optional integrating control signal
and the other is made through communication.
When optional integration control is made through
commuication, optional integrationg control signal
thereafter becomes invalid. Therefore, make
control through either one of the above 2 methods.
When optional integration changes over from stop
to start, integration starts after optional integrated
power is reset.
Backup when power off (power meter): Integrated power holds
last integrated value when power off. Optional
integration has not this function.
Response speed of instantanous power (analog output): Within
1 second (until enter into
±
1% of last value)
Up date of transmit data: Power, voltage, current, power factor
within 500ms
Insulation resistance: 100M
Ω
(500V DC) between any two
points of voltage input, current input, optional
integrated control signal, output, communication
output, power supply and ground
Withstand voltage: 2000V AC/minute between any two points
of voltage input, current input, output, power
supply and ground 2000V AC/minute between
communication output and (input, power supply)
1000V AC/minute between communication output
and (output, ground).
500V AC/minute between optional integrated
control signal and (input, output, communication
output, power supply and ground)
Impulse withstand voltage: 5kV (1.2/50
µ
s) between input and
output, input and ground, power supply and
ground
Temperature range: -10 to 55
°
C
Humidity range: 5 to 90% RH (no condensation)
Effect of power supply voltage fluctuation:
±
0.3% of RV
(instantanous value)/85 to 264V AC
±
1.0% of RV (power factor)/85 to 264V AC
Effect of temperature change:
±
0.5% of RV (instantanous
value)10
°
C
±
2.0% of RV (power factor)/10
°
C
Effect of input frequency:
±
0.3% of RV (instantanous value)/45
to 65Hz
±
1.0% of RV (power factor)/45 to 65Hz
(RV=Rated Value)
Power voltatge: 85 to 264V AC, 45 to 65Hz
Power dissipation: 6VA (at 100V AC)
8VA (at 200V AC)
●
Display Operation
PT ratio CT ratio:
Setting of PT and CT ratio makes display
converting input of this instrument into primary
side input value of PT and CT.
Setting can be done on parameter setting screen.
PT ratio setting range
CT ratio setting range
1 to 32000
0.05 to 32000
Integrated power:
䊐䊐䊐䊐䊐
[kWh] or
䊐䊐䊐䊐䊐
[MWh]
(w/o symbol, partially fixed decimal point integer
5 digits)
Input power rating
x PT ratio x CT ratio
30W to 99999kW
100kW to 999.99kW
1MW to 9.9999MW
10MW over
Display, decimal point
0 to 99999kWh
0.00 to 999.99MWh (kWh+10
3
)
0.0 to 9999.9MWh (kWh+10
3
)
0 to 99999kWh (kWh+10
3
)
Inregrated power data is reset to zero when the data exceed
maximunm display value.
