YOKOGAWA CW140, User Manual, Page: 53 / 292

7-1
IM CW140-E
Common Functions of All Modes
7
Chapter 7. Common Functions of All Modes
7.1 Wiring
This section describes how to select and change the type of wiring to
measure and wiring check function. To select and change the type of wiring to
measure, press the key on the measurement screen.
Refer to Section 3.4, "Diagrams of Basic Wiring." The wiring diagram will be
displayed in the wiring check function.
The following marks will be displayed to show the input terminals of the
voltage probe and current sensing clamp.
Wiring Voltage (RMS) Input Current (RMS) Input
1 φ 2W V1 I1
(CH1)
1
φ
3W V1 V2 I1 I2
(CH1) (CH2)
3
φ
3W V1 V3 I1 I3
(CH1) (CH3)
3
φ
3W3i V1 V3 I1 I2 I3
(CH1) (CH2) (CH3)
3 φ 4W V1 V2 V3 I1 I2 I3
(CH1) (CH2) (CH3)
2-system load
Wiring Voltage (RMS) Input Load Current (RMS) Input
1 φ 2W × 2 V1 Load 1 I1-1 (CH1)
Load 2 I1-2 (CH2)
1 φ 3W × 2 V1 V2 Load 1 I1-1 (CH1), I2-1 (CH2)
Load 2 I1-2 (CH3), I2-2 (CH4)
3 φ 3W × 2 V1 V3 Load 1 I1-1 (CH1), I3-1 (CH2)
Load 2 I1-2 (CH3), I3-2 (CH4)
TIP
The indications I1 to I3 correspond to the wiring displayed on the screen. The indications CH1 to CH4
correspond to the current input terminals.