Ct Input - Omron KE1 User Manual

Chapter 2 Preparation
● CT input
PGR1C
(Electric power
/leakage)
CT/ZCT
○/○
[PGR1C (power/leakage), PVS1C (power/voltage sag), VAU1B (voltage/current)]
The connection terminal of the dedicated CT and the number of circuits to be measured in
each phase and wire system are shown below.
CT1([13]-[14])
CT2([15]-[16])
CT3([17]-[18])
Number of
measurement
circuits
[CTD8E (CT expansion)]
In this case, terminals [9], [10], [13], [15], [17], [19], [21], and [23] are specified as S, and
terminals [10], [12], [14], [16], [18], [20], [22] and [24] as L.
CT1([13]-[14])
CT2([15]-[16])
CT3([17]-[18])
CT4([19]-[20])
CT5([21]-[22])
CT6([23]-[24])
CT7([9]-[10])
CT8([11]-[12])
Number of
measurement
circuits
* Measurement of power with CTD8E requires creating an association between a measurement block
and voltage input system of a measurement master (Measurement block synchronization setting).
For details, refer to page 3-3.
* CT1 to CT4 are classified as measurement block 1 and CT5 to CT8 as measurement block 2.
*1 Do not touch charging metal part of the dedicated CT terminal. Electric shocks may occur.
*2 Do not ground the dedicated CT. Doing so causes a failure.
2-32
PVS1C
VSU1B
(Electric power
(Voltage sag)
/voltage sag)
CT/ZCT CT/ZCT
○/× ×/×
Single Single 3-phase
phase phase 3-wire
2-wire 3-wire
L R
L -
L T
3 circuits 1 circuit 1 circuit
Single Single 3-phase
phase phase 3-wire
2-wire 3-wire
L R
L T
L R
L T
L R
L T
L R
L T
8 circuits 4 circuits 4 circuits
VAU1B CTD8E
(Voltage/current) (CT extension)
CT/ZCT CT/ZCT
○/× ○/×
O: With input X: Without input
3-phase
4-wire
R R
- S
T T
1 circuit
3-phase
4-wire
R R
T S
R T
T -
R R
T S
R T
T -
2 circuits
ZCT8E
(ZCT extension)
CT/ZCT
×/○