background image

K8DT-AS

4

Connections

Terminal Diagram

Note: 1.

Do not connect anything to terminals that are shaded in gray.

2.

There is no polarity for the DC power supply input.

3.

For the current input, you can input only from the C terminal and one other terminal.

4.

Refer to 

Setting Ranges and Wiring Connections

 on the I1, I2, and I3 current input terminals.

5.

The K8DT-AS3 is designed to be used in combination with the OMRON K8AC-CT200L Current Transformer (CT).

Wiring Example

Directly Inputting a Current

Using a CT

Transistor Output

Note:

Use copper wires with a rating of 75°C or an equivalent rating.

Inside

Inside

(1)

 

Current Input

AS1

(2)

 

Output

C: Relay Output

T: Transistor Output

(3)

 

Power Supply Voltage

A: 100 to 240 VAC

D: 24 VAC/DC

(No polarity)

500mA max.

20mA max.

100mA max.

AS2

AS3

CT

100A max.

200A max.

1A max.

5A max.

A1

I1

I3

14

A2

I2

11

12

C

CT

K8DT-AS1 C A

(1) (2) (3)

I1

I3

I2

C

I1

I3

I2

C

I1

I3

I2

C

14

11

12

A1

A2

A1

A2

14

11

DIP SW

DIP SW

Single-phase 

power supply

Load

Power supply 

voltage

A1

A2

Power 

supply

AC/DC

A1

I1

I3

14

A2

I2

11

12

C

Single-phase 

power supply

Load

Power supply 

voltage

A1

A2

Power 

supply

AC/DC

CT

DIP SW

A1

I1

I3

14

A2

I2

11

12

C

PLC

Single-phase 

power supply

Load

Power supply 

voltage

A1

A2

Power 

supply

AC/DC

DIP SW

A1

I1

I3

14

A2

I2

11

C

Summary of Contents for K8DT-AS Seriesl

Page 1: ...K8DT AS2 Options Order Separately Front Cover Refer to Safety Precautions on page 10 Refer to page 9 for commonly asked questions For the most recent information on models that have been certified for...

Page 2: ...DC Approx 5 Direct input Continuous input at 120 of maximum input 1 s at 150 100 mA AC DC I2 COM 10 to 100 mA AC DC Approx 1 Direct input 500 mA AC DC I3 COM 50 to 500 mA AC DC Approx 0 2 Direct input...

Page 3: ...rules Applicable wire size 0 25 to 1 5 mm2 AWG24 to AWG16 Wire insertion force 8 N max for AWG20 wire Screwdriver insertion force 15 N max Wire stripping length 8 mm Ferrule length 8 mm Current capaci...

Page 4: ...copper wires with a rating of 75 C or an equivalent rating Inside Inside 1 Current Input AS1 2 Output C Relay Output T Transistor Output 3 Power Supply Voltage A 100 to 240 VAC D 24 VAC DC No polarit...

Page 5: ...ge Contacts 11 12 Set value Alarm indicator Lit Contacts 11 14 or transistor output Input Delay time 250 ms reference value Terminal block See note Terminal block See note Current knob SV Hysteresis k...

Page 6: ...front of the Unit For the K8DT AS SW1 is not used Note Open the DIP switch cover to set the DIP switch Keep the DIP switch cover closed while the power supply to the Relay is ON Model Setting range I...

Page 7: ...et Value SV of 50 and Overcurrent Operation Operation will be at 100 A and resetting at 90 A when the hysteresis HYS is set to 10 Operating Time The operating time is set using the operating time knob...

Page 8: ...3 1 7 1 7 9 3 76 Two M5 screw holes or two 5 5 dia holes OMRON CT K8AC CT200L Mounting Hole Dimensions Note The OMRON Current Transformer CT is designed to be used with the K8DT AS3 Use terminals k an...

Page 9: ...ely 30 A The startup current will exceed the overload capacity rating 150 for 1 s of the K8DT AS1 and K8DT AS2 and result in failure of the Relay To monitor the motor load use the K8DT AS3 Overload ca...

Page 10: ...ails monitoring and alarm outputs may fail to operate This may result in physical damage to the facilities equipment or other devices that are connected to it To reduce this risk inspect the Relay reg...

Page 11: ...pply power to the product 22 Do not install the product immediately next to heat sources 23 Perform periodic maintenance 24 Do not wire anything to the release holes 25 When you insert a flat blade sc...

Page 12: ...rom the release hole Checking Connections After the insertion pull gently on the wire to make sure that it will not come off and the wire is securely fastened to the terminal block To prevent short ci...

Page 13: ...re is basic insulation between the power supply terminals and input terminals There is basic insulation between the power supply terminals and output terminals There is basic insulation between the in...

Page 14: ...MEMO 14...

Page 15: ...CONNECTED WITH THE PRODUCTS WHETHER SUCH CLAIM IS BASED IN CONTRACT WARRANTY NEGLIGENCE OR STRICT LIABILITY Further in no event shall liability of Omron Companies exceed the individual price of the Pr...

Page 16: ...IL 60169 U S A Tel 1 847 843 7900 Fax 1 847 843 7787 Regional Headquarters OMRON EUROPE B V Wegalaan 67 69 2132 JD Hoofddorp The Netherlands Tel 31 2356 81 300 Fax 31 2356 81 388 Contact www ia omron...

Reviews: