Wiring; Requests For Wiring; Power Voltage - Omron KE1 User Manual

Chapter 2 Preparation
2.5

Wiring

■ Requests for wiring

 Do not change the terminal screws, but use existing screws.
 To prevent being affected by noise, wiring of signal line should be different from that of power
line.
 Cable to be used for wiring terminals excepting CT should be twist pair AWG25 (whose
cross-sectional area is 0.205 mm2) to AWG12 (whose cross-sectional area is 3.309 mm2).
 For circuits in use, select appropriate cables.
 When connecting dedicated CT, use the cable for dedicated CT (Model KM20-CTF-CB3: 3
m).
When doing so, connect the shrinkable tube side to the dedicated CT.
 For RS-485 connection, the total cable length is up to 500 m.
 Do not ground the dedicated CT or RS-485 signal line. Doing so causes a failure.
 For the terminal section, carry out wiring by using a solderless terminal.
 Use wiring materials and crimp tools that are suitable for the solderless terminal.
 Tighten a terminal screw to the torque of 0.69 to 0.88 Nm.
 For a solderless terminal, use the M3.5 terminal whose shape is as follows.

■ Wiring

● Power voltage
PGR1C
(Electric
power/leakage) power/voltage sag)
○
Connect between terminals [1] and [2].
The specifications are as follows.

Power voltage

AC100～240 V (50/60 Hz)
2-30
Less than 7.2 mm
7.2mm以下
Less than 7.2 mm 7.2mm以下
PVS1C VSU1B
(Electric (Voltage sag)
○ ○
Measurement master : 10 VA or less for
ess at the time of maximum expansion
Functional slave:
VAU1B CTD8E
(Voltage/current) (CT extension)
○ ×
O: With terminal X: Without terminal
Consumed power
independent behavior.
10 VA or lower
ZCT8E
(ZCT extension)
×