YOKOGAWA CW120 - Page 15

1-3
IM CW120-E
Product Overview
1
1.1 Product Overview
● Schematic Function Diagram
Power-on
Measurement
screen
Setting
screens
key
key
Chapter 7
Chapter 9
Chapter 8
PC Printer PC
PC card
7.2.10 Setting whether to
save data to PC card
RS-485RS-232
Communication interface
(chosen when ordering)
External control terminals
Input Output
7.2.11 Selecting communication device
7.2.1
7.2.2
7.2.3
7.2.4
7.2.5
7.2.6
7.2.7
7.2.8
7.2.9
7.2.10
7.2.11
7.2.12
7.2.13
7.2.14
7.2.15
7.2.16
Setting device number
Loading/saving settings
Deleting file and formatting PC card
Clearing electric energy count (watt-hours)
and resetting system
Copying and clearing backup memory
contents
Setting date
Setting output interval
Setting integration start time
Setting integration stop time
Setting whether to save data to PC card
Selecting communication device
Making communication settings
Setting VT ratio
Setting CT ratio
Selecting probe to be used
Setting decimal point and unit of electric
energy (watt-hours)
Saving settings
7.2.2 Loading/saving setting File: WTH000.SET
Electric energy (watt-hour)
measurement
Data saving
Auto-saving
7.2.7 Setting output interval
File: AWTH000.CSV
Instantaneous value
measurement
Data saving
File: MWTH000.CSV
key
Start of
integration
End of
integration
7.2.8 Setting integration start time
7.2.9 Setting integration stop time
● On-screen Information (Measured Data)
There are two measurement modes: instantaneous measurement and
electric energy measurement. In the latter mode, the power is
continuously measured and integrated during the preset start and stop
times.
Instantaneous value measurement
Item Unit Displayed Name
Rms voltage V V1, V2, V3 (differs depending on the wiring method)
Rms current A A1, A2, A3 (differs depending on the wiring method)
Active power W W
Reactive power Var Var
Power factor — PF
Frequency Hz Hz (input frequency of V1)