Dip Switch Settings; Setting Method - Omron K8AK-AW Series Manual

K8AK-AW
Operation Methods
Setting Ranges and Wiring Connections
Model Setting range
2 to 20 mA AC/DC
K8AK-AW1 10 to 100 mA AC/DC
50 to 500 mA AC/DC
0.1 to 1 A AC/DC
K8AK-AW2
0.5 to 5 A AC/DC
10 to 100 A AC*
K8AK-AW3
20 to 200 A AC*
Connections
●Input
Connect the input between the I1-COM, I2-COM, or I3-COM terminals, according to the input
current. Malfunctions may occur if the input is connected to unused terminals and the Unit will
not operate correctly.
Terminal I1 is not used by the K8AK-AW3.
If using the OMRON K8AC-CT200L CT, connect to terminals k and l on the K8AC-CT200L.
(Terminals kt and lt are not used.)
●Power Supply
Connect the power supply to terminals A1 and A2.
●Outputs
AL1 (SPDT relay) is output to terminals 11, 12, and 14.
AL2 (SPDT relay) is output to terminals 21, 22, and 24.
Note: Use the recommended ferrules if using twisted wires.

DIP Switch Settings

The resetting method, relay drive method, and operating mode are set using the DIP switch
located on the bottom of the Unit.
K8AK-AW@ does not use SW1.
OFF
ON
SW4
SW3
DIP switch pins
SW2
SW1

Setting Method

●Setting Current
The current knob (SV) is used to set the current.
The current can be set to 10% to 100% of the maximum setting range.
Turn the knob while there is an input to the input terminals until the alarm indicator flashes (when the set value and the input have reached the
same level.)
Use this as a guide to set the current.
The maximum setting range will differ depending on the model and the input terminal.
Example: K8AK-AW3 Using Input Terminals I3-COM
The maximum measuring current will be 200 A AC and the setting range will be 20 to 200 A.
8
Wiring
Input type
connections
Direct input I1-COM
Direct input I2-COM
Direct input I3-COM
Direct input or
I1-COM
commercially
I2-COM
available CT
OMRON CT I2-COM
OMRON CT I3-COM
●DIP Switch Functions
Pin
Manual reset
Resetting
method
Automatic reset
AL1 AL2
Overcurrent Undercurrent
Operating
Overcurrent Overcurrent
mode
Undercurrent Undercurrent
Overcurrent Undercurrent
Note: All pins are set to OFF at the factory.
Note: The DC input terminals have no polarity.
* The K8AK-AW3 is designed to be used in combination
with the OMRON K8AC-CT200L Current Transformer
(CT). (Direct input is not possible.)
<For K8AK-AW3>
Single-phase power
Load
OFF ● ↑
1
2
OFF
ON ❍ ↓
ON
●
❍
Not used. ---
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K8AK-AW3
A1
Power supply
voltage
K8AC- A2
CT200L
I1
Current input
k
I2
I3
C (COM)
l
14
11
Signal output
AL1 relay
12
signal
output
24
21
Signal output
AL2 relay
22
signal
output
3 4
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