Usb Port; Input Voltage - Omron KE1 User Manual

● USB port
Connecting Model KE1 and a PC via a USB cable can make settings and read measurement
values. In addition, supplying power from a PC via USB (driving USB bus power) can make
settings only. For the functions available via a USB port, refer to the table below.
*1. For the USB cable, use mini-USB type B.
*2 If settings have been made via USB, remove the USB cable from the product, and then
supply the power to it. When reading measurement values via USB communication,
remove the USB cable once after the setting change, and then connect the product again.
Without power
voltage
With power voltage
*3 Connect the USB cable only when USB communication is required. If the USB cable is
always connected, and the power supply to the product is turned ON/OFF due to
instantaneous voltage drop, etc., the product cannot be started up normally to make
measurements.
*4 Do not carry out RS-485 communication during USB communication. (Doing so may return
a response.)
● Input voltage
PGR1C
(Electric power (Electric power
/leakage) /voltage sag)
○
Connect the wire between (21), (22), (23), and (24) terminals in the measurement master and
slave units.
* When wiring, avoid error in the order of phases. An error will cause incorrect
measurement.
[PMU1A (electric power)]
Single Single
phase phase
2-wire 3-wire
P1
L
P2
N
P3
－
P0
－
* Indication of voltage: VⒶⒷ: Indicates a voltage between [A] and [B].
Example: Vrs indicates a voltage between R and S.
When one product is used
For all models, only settings can be
made.
For all models, settings and reading of
measurement values can be performed.
PVS1C
VSU1B
(Voltage sag)
○ ○
3-phase 3-phase
3-wire 4-wire
R R R
N S S
T T T
－ － N
When multiple units are connected
Only the measurement master can be
set.
Connecting the measurement master
can perform settings and reading of
measurement values. Settings of the
slave connected to the measurement
master and reading of the measurement
values can be performed.
VAU1B CTD8E
(Voltage/current) (CT extension)
○ ×
O: With input X: Without input
2.5 Wiring
ZCT8E
(ZCT extension)
×
2-31