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K8DT-PM

11

Screw Mounting

1.

Pull out the two hooks on the back of the Relay to the outside until 
you hear them click in place.

2.

Insert M3 screws into the hook holes and secure the Relay.

Adjusting the Setting Knobs

• Use a flat-blade screwdriver to adjust the setting knobs. The knobs 

have a stopper that prevents them from turning beyond the full right 
or left position. Do not force a knob beyond these points.

• To reduce the error in the setting knob, always turn the setting knob 

from the minimum setting toward the maximum setting.

Connecting Wires to the Push-In Plus Terminal Block

Part Names of the Terminal Block

Connecting Wires with Ferrules and Solid Wires

Insert the solid wire or ferrule straight into the terminal block until the 
end touches the terminal block.

If a wire is difficult to connect because it is too thin, use a flat-blade 
screwdriver in the same way as when connecting stranded wire.

Connecting Stranded Wires

Use the following procedure to connect the wires to the terminal block.

1.

Hold a flat-blade screwdriver at an angle and insert it into the 
release hole. The angle should be between 10° and 15°.
If the flat-blade screwdriver is inserted correctly, you will feel the 
spring in the release hole respond.

2.

With the flat-blade screwdriver still inserted into the release hole, 
insert the wire into the terminal hole until it strikes the terminal block.

3.

Remove the flat-blade screwdriver from 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 circuits, insert the stripped part of a stranded or 

solid wire or the conductor part of a ferrule until it is hidden inside 
the terminal insertion hole. (See the following diagram.)

Removing Wires from the Push-In Plus Terminal Block

Use the following procedure to remove wires from the terminal block.
The same method is used to remove stranded wires, solid wires, and 
ferrules.

1.

Hold a flat-blade screwdriver at an angle and insert it into the 
release hole.

2.

With the flat-blade screwdriver still inserted into the release hole, 
remove the wire from the terminal insertion hole.

3.

Remove the flat-blade screwdriver from the release hole.

(1)

(1)

(2)

(2)

Two M3 screw holes or
two 3-dia. holes

108

Mounting Hole Dimensions

Note: 1.

Pull out the hooks to mount
the Relay with screws.

2.

Recommended tightening 
torque: 0.5 to 0.6 N·m.

Setting knob

Release hole

Terminal 
(Insertion) hole

Release hole

Terminal 
(Insertion) hole

<Upper side>

<Lower side>

Ferrule

Release hole

Terminal 
(Insertion) hole

Ferrule

Release hole

Terminal 
(Insertion) hole

<Upper side>

<Lower side>

Wire

Flat-blade screwdriver

(1)

(3)

(2)

Wire

Flat-blade screwdriver

(1)

(2)

(3)

10 to 15°

10 to 15°

Flat-blade 
screwdriver

Flat-blade 
screwdriver

<Upper side>

<Lower side>

Ferrule

Ferrule

<Upper side>

<Lower side>

Wire

<Lower side>

Wire

<Upper side>

Wire

Flat-blade screwdriver

(1)

(3)

(2)

Wire

Flat-blade screwdriver

(1)

(2)

(3)

10 to 15°

10 to 15°

Flat-blade 
screwdriver

Flat-blade 
screwdriver

<Upper side>

<Lower side>

Summary of Contents for K8DT-PM

Page 1: ...h America Certification is pending for LR standards Models added with transistor outputs for superior contact reliability RoHS compliant Ordering Information Three phase Voltage and Phase sequence Pha...

Page 2: ...bient operating humidity 25 to 85 RH with no condensation Storage humidity 25 to 85 RH with no condensation Altitude 2 000 m max Applicable wires Stranded wires solid wires or ferrules Applicable wire...

Page 3: ...nd after an incorrect phase is detected and once per 0 5 second during the detection time K8DT PM1 C N L1 14 L2 11 12 L3 DIP SW Inside Inside 2 Output C Relay Output T Transistor Output 14 11 12 14 11...

Page 4: ...ck See Note Terminal block See Note Power indicator Output status indicator Overvoltage knob OVER Undervoltage knob UNDR Operating time knob T Alarm indicator 8 mm 8 mm Solid Wire 8 mm Stranded Wires...

Page 5: ...R The undervoltage can be set to between 30 and 30 of the rated input Turn the knob while there is an input to the input terminals until the alarm indicator flashes when the set value and the input ha...

Page 6: ...0 Three phase Voltage and Phase sequence Phase loss Relays K8DT PM1 K8DT PM2 Options Order Separately Front Cover Y92A D1A 52 7 3 5 1 8 17 5 5 85 DIN Tracks PFP 100N PFP 50N Dimensions in parentheses...

Page 7: ...rminals is 120 of the set value for overvoltage detection or 80 of the set value for undervoltage detection when the auxiliary relay in connection diagram 2 operates Close the switch and use a cycle c...

Page 8: ...tected because the motor terminal voltage does not drop very much even if a phase is lost when the load on the motor is light To detect motor load phase loss during operation use the undervoltage dete...

Page 9: ...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 regularly To maintain s...

Page 10: ...e terminal block may be damaged 25 Insert a flat blade screwdriver into the release holes at an angle The terminal block may be damaged if the screwdriver is inserted straight in 26 Do not allow the f...

Page 11: ...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 12: ...maximum applied voltage for the clearance solid insulation and other factors There is basic insulation between the input terminals and output terminals Operating section must have reinforced or doubl...

Page 13: ...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 14: ...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...

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