K8AC-CT20S Omron, K8AC-CT20S Datasheet - Page 7

• Manufacturer Part Number: K8AC-CT20S
• Description: CURRENT TRANSFORMER .2-22A
• Manufacturer: Omron
• Series: K8ACr

Specifications of K8AC-CT20S

• Accessory Type: Current Transformer
• For Use With/related Products: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: K8ACCT20S

Connections
Terminal Arrangement
K8AC-H2@@@-FLK
Transistor Output
K8AC-H2@@N-FLK
The transistor output of the K8AC-H2@@N uses a photocoupler for
isolation with the internal circuits, and so either an NPN open-
collector output or a PNP equivalent output can be used.
Current Input Circuits
CT Inputs (Heater Current)
Terminals
5, 6 to 4
11 to 12
13 to 14
9 to 10
3 to 4,
5 to 4,
1 to 2
5 to 6
6 to 4
7 to 8
CT1
CT2
Power supply voltage
7
CT1
100 to 240 VAC
Current inputs
1
Transistor
Transistor
8
circuit
circuit
Power supply voltage Connect to the operating power supply.
Outputs
Current inputs
Gate input
Communications
drive
drive
10
NPN Output
9
7
8
9
CT2
Load power supply
2
Name
10
7
1
H8AC-H2@C@
Voltage pulse
12 VDC or
24 VDC
8
12 to 24 VDC,
50 mA DC
11
Load
3
−
+
+
−
9
12
2
Gate input
H8AC-H2@@N
Outputs SSR open or short circuit detection results.
Outputs heater burnout or layer short circuit detection results.
Outputs an OR of the status of all alarms.
Connect to CT1. Current input from CT1 secondary-side output.
Connect to CT2. Current input from CT2 secondary-side output.
Connect to gate signal (voltage pulse).
Connect to a 4 to 20-mA gate signal.
Connect to host device for RS-485 communications.
10
4
PNP Equivalent Output
Linear current
4 to 20 mA DC
H8AC-H2@P@
4
3
6
5
12 to 24 VDC,
50 mA DC
11
3
Load
11
Load power supply
5
SSR alarm output
Heater burnout,
heater layer short circuit,
overcurrent alarm output
Outputs
conversion
conversion
12
4
12
6
A/D
A/D
13
5
COM
Communications
H8AC-H2@@C
4
14
6
A(−) B(+)
125 VAC,
0.3 A AC
30 VDC,
1 A DC
13
RS-485
Description
5
14
6
K8AC-H1@@@-FLK
Output Circuits
Contact Outputs
Note: For contact outputs, the same outputs are used for SSR error
K8AC-H1@@T-FLK
Power supply voltage
7
and for heater burnouts and heater layer short circuit alarm
outputs.
CT1
100 to 240 VAC
Current inputs
drive circuit
drive circuit
1
Transistor
Transistor
Relay
8
drive
circuit
All models
K8AC-H2@@N
(transistor output)
K8AC-H1@@T
(NPN open-collector output)
K8AC-H@@@C (relay output)
All models
K8AC-H@@C@
K8AC-H@@P@
All models
9
CT2
2
Applicable models
10
7
1
Voltage pulse
12 VDC or
24 VDC
H8AC-H1@C@
8
+12 V
11
9
12
2
Gate input
COM
10
H8AC-H1@@T
4
12 to 24 VDC,
50 mA DC
H8AC-H1@P@
Linear current
4 to 20 mA DC
11
3
11
5
4
5
6
Note: 1. Terminals 4 to 6:
12
4
12
6
4
5
6
COM
SSR alarm output
Heater burnout, heater layer short
circuit, overcurrent alarm output
Outputs
N.C. contact
COM
N.O. contact
13
5
2. Terminals 11 and
COM
Communications
H8AC-H1@@C
4
14
6
Alarm output
terminals. Depend
on the output type
(relay contact
output or transistor
output).
12: Gate input
terminals. Depend
on the heater
control type (ON-
OFF/SSR control
or cyclic/phase
control).
A(−) B(+)
125 VAC,
0.3 A AC
30 VDC,
1 A DC
13
RS-485
K8AC-H
5
14
6
7