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K8DT-VS

8

Checking Operation

Overvoltages
Gradually increase the input from 80% of the set value.
The input will equal the operating value when the input 
exceeds the set value and the alarm indicator starts flashing.
Operation can be checked by the contact outputs that will 
start after the operating time has passed.
Undervoltage
Gradually decrease the input from 120% of the set value and 
check the operation using the same method as for 
overvoltage.

Example: Overvoltage Operating Mode and an Operating Time of 5 s

Note:

K8DT-VS

@

 output relays are normally operative.

How to Measure the Operating Time

Overvoltage
Change the input suddenly from 0% to 120% of the set value 
and measure the time until the Unit operates.
Undervoltage
Change the input suddenly from 120% to 0% of the set value 
and measure the time until the Unit operates.

Questions and Answers

Q

C

u

rrent inp

u

t

Set 

v

al

u

e

Alarm indicator

Flashing

5 s

Lit

Contact o

u

tp

u

t or

transistor o

u

tp

u

t

V

200 

V

AC

A1

Inp

u

t terminals

Po

w

er s

u

pply

A2

±

C

200 

V

Cycle co

u

nter

V

aria

b

le

a

u

totransformer

0 to 300 

V

Connection Diagram

Q

Summary of Contents for K8DT-VS Series

Page 1: ...utputs for superior contact reliability Ordering Information Single phase Voltage Relay Optional Cover Front Cover Refer to Safety Precautions on page 9 Refer to page 8 for commonly asked questions Fo...

Page 2: ...V AC DC V1 COM 1 to 10 V AC DC Approx 120 k Continuous input at 115 of maximum input 10 s at 125 up to 600 VAC 0 to 30 V AC DC V2 COM 3 to 30 V AC DC Approx 320 k 0 to 150 V AC DC V3 COM 15 to 150 V...

Page 3: ...driver insertion force 15 N max Wire stripping length 8 mm Ferrule length 8 mm Recommended flat blade screwdriver XW4Z 00B Omron SZF 0 4 2 5 Phoenix Contact 210 719 Wago SDI 0 4 2 5 75 Weidmuller Curr...

Page 4: ...Output Note Use copper wires with a rating of 75 C or an equivalent rating 1 Voltage Input VS2 3 Power Supply Voltage A 100 to 240 VAC D 24 VAC DC No polarity 10V max 30V max 150V max VS3 200V max 300...

Page 5: ...generated during the instable period when the power is first turned on There is no relay output during timer operation Power supply voltage Contacts 11 14 or transistor output Contacts 11 12 Set valu...

Page 6: ...witch located on the front of the Unit 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 Wiring connec...

Page 7: ...tting range is 5 to 50 of the operating value Example Maximum Setting of 600 VAC VDC Voltage Set Value SV of 50 and Overvoltage Operation Operation will be at 300 V and resetting at 270 V when the hys...

Page 8: ...or overvoltage Example Overvoltage Operating Mode and an Operating Time of 5 s Note K8DT VS output relays are normally operative How to Measure the Operating Time Overvoltage Change the input suddenly...

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: ...ation check the wiring before you supply 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 hole...

Page 11: ...e 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 term...

Page 12: ...sulation 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 input terminals...

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: ...9 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 com Kyo...

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