Koei Unic - 05 Operation Manual Download Page 15

-12- 

Valve Position Indicator 

Limit Dog 

Limit Dog Screw 

Position Indicator Screw 

Sleeve Screw 

 Dog Screw 

Output Shaft 

Sleeve 

[ Unic-20, -40 ] 

 

 

[Fig.13] 

8-2 Potentiometer resistance output (option) 

[Fig.14] 

a) Remove top cover.

See switches and dogs in the left (Fig.13).

b) Switches are arranged in the left and right. The right

are for close, left are for open.

(Upper for contact output)

c) Manually set the opening at 1/2 ~1 handle turn

before stop position.

d) Loosen dog screw and fix the switch at the position it

clicks.

*Adjust both right and left (open and close).

e) After the adjustment, confirm that the switches

function just before stop position.

f) Loosen dial plate screw and fix it at the set opening.

Potentiometer  

Position Indicator Screw 

 Valve Position Indicator 

Sleeve  

Sleeve Screw 

Dog Screw 

Limit Dog 

Output Shaft 

 Opening Spur Gear 

Gear Screw 

Gear Screw 

Potentio Spur Gear 

a) Remove actuator top cover (Electric unit cover).

Potentiometer is connected with gears as shown in
[Fig.14].

b) Potentiometer is available with 135

, 500

, 1K

for users choice.

c) Set the opening manually at “ Full close ”.
d) Apply a tester between terminals 4 and 5, and loosen

sleeve screw for turn. Set the potentiometer at a
desired resistance, then, screw it up. Adjustment is
now over.

Make sure that the position switch (stop) functions
in position.

e) Confirm the resistance at full close and full open that

output resistance is within the range.

f) Finally, loosen dial plate and fix it at the set opening.

Potentiomete

Summary of Contents for Unic - 05

Page 1: ...ELECTRIC ACTUATOR OPERATION MANUAL Unic Series ROTARY TYPE DC Version Unic 05 Unic 10 Unic 20 Unic 40...

Page 2: ...ding the notes under this mark may cause injury or death to a man CAUTION Improper handling of the product disregarding the notes under this mark may cause injury or material loss WARNING This product...

Page 3: ...t temperature fluid temperature 5 MOUNTING ON VALVE 6 WIRING 6 1 Power and operation signals 6 2 Wiring work 7 POWER SOURCE AND CIRCUITS 7 1Power source 7 2Fuse and breaker 7 3Circuit diagram 8 ADJUST...

Page 4: ...ling and useable in a narrow space Trouble less simple structure Easy of mounting inspection and maintenance Manual override with a crank lever standard accessory Motor is protected from burnout due t...

Page 5: ...2 2 2 Unic 05 Dimensions 2 3 Unic 10 Dimensions...

Page 6: ...3 2 4 Unic 20 40 Dimensions...

Page 7: ...rotection Open Close torque limiters Option Unic 05 Either open or close only POSITION DETECTION Open Close position limit switches OUTPUT SIGNAL No voltage contact output standard Contact capacity AC...

Page 8: ...for maintenance or manual work Actuator materials and surface treatment MODEL PART Unic 05 Unic 10 Unic 20 Unic 40 HOUSING BODY FRONT COVER SIDE COVER TOP COVER Die cast Aluminum ADC12 Chromate treat...

Page 9: ...yoke e Fix valve stem and actuator output shaft with coupling f Secure bolts and fix the yoke and actuator g Confirm manually that the valve turns smoothly without eccentricity Direct interface mounti...

Page 10: ...ram d For all connections use fork crimped on terminals e Use a cable of outer diameter 9 11mm for standard conduit See Fig 7 When using a customer conduit select a proper size one to fit cable diamet...

Page 11: ...4VDC Option 12VDC 100VDC For different supply from the above refer to our Sales Dept 7 2 Fuse and breaker Install a protection fuse or breaker on power source Table of recommendable fuse and breaker M...

Page 12: ...OLS 1 Open position limit switch OLS 2 Open contact output limit switch CLS 1 Close position limit switch CLS 2 Close contact output limit switch Actuator DC Motor Red White Green Brown Yellow Resist...

Page 13: ...ing in the way that each actuator is independently separable from DC source Otherwise when an actuator is manually operated it is possible that the voltage generated by manual drive will transmit and...

Page 14: ...both upper and lower switches As an one piece type dog is installed for both position and contact output switches as you set the position switch the position of contact output switch will be determine...

Page 15: ...osen dial plate screw and fix it at the set opening Potentiometer Position Indicator Screw Valve Position Indicator Sleeve Sleeve Screw Dog Screw Limit Dog Output Shaft Opening Spur Gear Gear Screw Ge...

Page 16: ...output shaft position Set position signal limits and mechanical stopper manually as shown in the figure while confirming the positions of full close and full open Adjustment Bolt Locknut Output Shaft...

Page 17: ...external operation signals that open and close action is normal Motor should stop at full close open positions and the positions should correspond to valve opening c Start power operation after confir...

Page 18: ...hipment is in principle not required Inspection When starting operation after a long period of rest make the following inspection before hand a Cut power off and confirm manually that the unit work sm...

Page 19: ...is not proper Re adjust limit dog Motor coil or lead wire is broken Renew actuator Motor is constrained Limit switch is set beyond the range Make re adjustment Mechanical stopper setting is not corre...

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