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Summary of Contents for Assured Automation K4 Series
- Page 1 1-800-899-0553 assuredautomation.com K4 Series Heavy Duty Weatherproof Worm Gear Electric Actuators Installation, Operation, & Maintenance Manual Scan for more product information Doc. AA-K4-IOM-2021.10.20...
- Page 2 K4 Series Heavy Duty Weatherproof Worm Gear Electric Actuators On/Off Valve Actuators Unic Models Unic-Z Unic-05 Unic-10 Unic-20 Unic-40 Unic-60 Unic-100 Unic-150 Nucom Modulating Control Models See Page 21...
- Page 3 FOR YOUR SAFETY In order for better and safety use of the product for a long period, please observe this “ WARNING and CAUTION “ carefully. Here are the specification and operation manual for the product to prevent suffering injury or loss by accidents. The contents are divided into “WARNING”...
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Page 4: Table Of Contents
CONTENTS 1. GENERAL 2. CONFIGURATION 2-1 Configuration and names of parts 2-2 Unic-Z,05 2-3 Unic-10 2-4 Unic-20,40 2-5 Unic-60,100,150,200 3. SPECIFICATION 4. INSTALLATION 4-1 Installation place 4-2 Ambient temperature, fluid temperature 5. ASSEMBLY WITH A VALVE 6. WIRING 6-1 Power and input signals 6-2 Wiring work 7. -
Page 5: General
1.GENERAL “Unic Series” is a super high quality quarter-turn rotary type electric valve actuator for on/off and intermediate position service. FEATURES Compact and light Easy of installation and maintenance Simple structure with fewest trouble Manual operation by crank handle Thermal protection from motor burn-out Terminal block for simple wiring Water tightness to NEMA-4X (to IP-66) 2. -
Page 6: Unic
2-2 Unic-Z, 05 Configuration 2-3 Unic-10 Configuration... - Page 7 2-4 Unic-20, 40 Configuration 2-5 Unic-60, 100, 150 ,200 Configuration...
- Page 8 ＡＣＴ−Ｕ０１Ｅ−２ 3. FUNCTIONAL SPECIFICATION MODEL Unic-Z Unic-05 Unic-10 Unic-20 Unic-40 ITEM AC100/110V±10% (50/60 Hz) AC115/120V±10% (50/60 Hz) RATED VOLTAGE AC200/220V±10% (50/60 Hz) AC230/240V±10% (50/60 Hz) AC100/110V 0.7/0.9A 0.65/0.70A 1.1/1.2A 1.8/2.0A AC115/120V 0.6/0.7A 0.60/0.65A 1.0/1.1A 1.6/1.8A RATED CURRENT AC200/220V 0.4/0.5A 0.35/0.40A 0.55/0.60A 0.9/1.0A AC230/240V...
- Page 9 ＡＣＴ−Ｕ０１Ｅ−２ MODEL Unic-60 Unic-100 Unic-150 Unic-200 ITEM AC110/110V±10% (50/60 Hz) RATED AC115/120V±10% (50/60 Hz) VOLTAGE AC200/220V±10% (50/60 Hz) AC230/240V±10% (50/60 Hz) AC100/110V 1.8/2.0A 2.9/3.0A 3.4/3.5A 3.4/3.5A AC115/120V 1.7/1.9A 2.6/2.8A 3.2/3.4A 3.2/3.4A RATED CURRENT AC200/220V 1.0/1.1A 1.5/1.6A 1.8/1.9A 1.8/1.9A AC230/240V 0.9/1.0A 1.3/1.4A 1.6/1.7A 1.6/1.7A...
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Page 10: Unic-20,40
CAUTION ON ENVIRONMENTAL INSTALLATION CONDITIONS 4.INSTALLATION 4-1 Installation Caution on indoor installation * The actuators are not of explosion-proof type. Do not install in a hazardous place. * Cover whole the unit, if it is installed at a place where water or materials are splashing. * Reserve a space for manual maintenance work. -
Page 11: Assembly With A Valve
CAUTION ON ASSEMBLY WITH A VALVE 5. ASSEMBLY WITH A VALVE Names of parts Bolt Coupling Valve Bracket Actuator Assembly procedure 1. Be sure that power is off before making manual operation. 2. Confirm that a valve is smoothly turnable by hands without eccentricity, then position it at full close. -
Page 12: Wiring Work
6-2 Wiring work Use sufficiently sealed tubes or conduit to prevent water ingress. Connector PVC Conduit Branch CAUTION ON USE 7. POWER SOURCE AND CIRCUITS 7-1 Power source Standard supply: Single Phase AC Power Supply ± ％ AC 100/110/115/120V (50/60Hz) AC 200/220/230/240V ±... -
Page 13: Circuit Diagram
7-3 Circuit diagram [ Unic-Z, 05, Standard circuit ] [ Unic-10,20, 40, 60, 100, 150, 200 Standard circuit ] Do not make parallel operation with multiple actuators. If they are operated at the same time through one open-close switch or relay, the actuators may draw abnormal feed-back current into the units, causing chattering, then disturbance to normal operation. -
Page 14: Adjustment
Confirm that power is OFF before making manual operation 8. ADJUSTMENT 8-1 Adjustment of limit switches and position indicator (1) Unic-Z, 05 LS1: Open travel limit switch LS2: Open Aux. contact output switch LS3: Close travel limit switch LS4: Close Aux. - Page 15 (2) Unic-20, 40 The limit switch at right is for close, left one is for open direction. Limit Cam 1. Open the valve fully by manual handle. 2. Remove the position indicator. 3. Loosen and turn the limit cam. * By working on Philips screws, the cam angle can be adjusted for open / close sides.
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Page 16: Potentiometer (Option)
8-2 Open/Close Non-Voltage Aux. Limit Switch (option) The following diagram shows Unic-10 case as an example. * For Unic-20,40, 60 and larger, the additional set of cam/switches are added on the top of existing travel limit switches for each open/close side. (Top switch is for Aux. contact, Bottom for travel limit.) 1. -
Page 17: Mechanical Stop
8-4 Mechanical stop Adjustment Bolt Locknut 1. Open the valve fully by manual handle. 2. Loosen, and return the stop by 1/2 turn with the adjuster bolt. 3. Tighten the locknut. 4. Adjust close side in the same manner. * Make sure the electric motion is not constrained by the mechanical stop. -
Page 18: Power Operation
9-2 Power operation Before making power operation: Confirm that the indication on the position meter and the valve opening are matching each other. Confirm that the circuits are properly wired, also that the unit operates in correct direction with external switches. 10. -
Page 19: Trouble Shooting
11. TROUBLE SHOOTING TROUBLE AND PROBABLE CAUSE SOLUTION MOTOR DOES NOT START UP Power is off Supply power Circuits or terminal are open Renew cables or re-connect terminal Supply voltage is improper or too low Check terminal voltage with a tester Trouble on thermal protector (Ambient Lower ambient temperature or check valve Temperature is... - Page 20 CAUTION ON USE ● Do not make parallel operation ［ Parallel operation ］ Parallel operation means operating plural units at the same time with one open-close switch. Trouble by parallel operation: As shown in Fig. 6, an abnormal current flow will occur along with the dotted line, causing chattering to the actuators, then disturbance to normal operation.
- Page 21 K4 Series Heavy Duty Weatherproof Worm Gear Electric Actuators Modulating Control Valve Actuators Nucom Models Nucom-10NS Nucom-10NM Nucom-10NL Nucom-10NL-100 Nucom-10NL-150 Nucom-10NL-200 Unic On/Off Models See Page 2...
- Page 22 In order for better and safety use of the product for a long period, please observe this WARNING and CAUTION carefully. These notes are to clarify specifications and proper operation of the product, for preventing injury or loss by accidents. The contents are divided into WARNING and CAUTION for different degree of risks.
- Page 23 CONTENTS 1. GENERAL 2. CONFIGURATION 2-1 Configuration and names of parts 2-2 External drawings 3. FUNCTIONAL SPECIFICATIONS 4. OPERATION PRINCIPLE 4-1 Operation principle 4-2 Block diagram 5. INSTALLATION 5-1 Installation 5-2 Ambient Temperature / Fluid Temperature 6. WIRING 6-1 Cables 6-2 Water prevention 7.
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Page 24: General
1. GENERAL Nucom series electric modulating actuators are designed for quarter turn valve control with 4~20mA DC (or 1~5V DC) command signals from a computer / controller. The precise output shaft positioning (control resolution over 1/250 with no-overrun, no-hunting) and continuous duty, quick reaction / positioning motions realize far superior process control results, at the same time, its maintenance free and lower energy / high efficiency design contribute to lower maintenance cost than the conventional pneumatic / electric actuation products. -
Page 25: External Drawings
2-2 External drawings (Male square shaft standard types) <Nucom-10NS> <Nucom-10NM>... - Page 26 <Nucom-10NL, 10NL-100, 10NL-150, 10NL-200> 10NL & 10NL-100 10NL-150 & 10NL-200 148.5 253.5 10NL, 10NL-100 & 10NL-150 10NL-200...
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Page 27: Functional Specifications
3. FUNCTIONAL SPECIFICATIONS MODEL Nucom-10NS Nucom-10NM ITEM AC120V 10% (50/60 Hz) (US Standard) RATED POWER AC240V 10% (50/60 Hz) (Option) 4~20mA·DC (Standard) INPUT SIGNAL 4~12mA·DC, 12~20mA·DC, 0~10V·DC (Option) 49 N·m 196 N·m TORQUE OUTPUT (434 in·lb) (1736 in·lb) 50Hz 15 sec 15 sec OPERATION SPEED 60Hz... - Page 28 MODEL Nuocm-10NL Nucom-10NL Nucom-10NL Nucom-10NL ITEM -100 -150 AC120V 10% (50/60 Hz) (US Standard) RATED POWER AC240V 10% (50/60 Hz) (Option) 4~20mA·DC (Standard) INPUT SIGNAL 4~12mA·DC, 12~20mA·DC, 0~10V·DC (Option) 490 N·m 980 N·m 1470 N·m 1960 N·m TORQUE OUTPUT (4340 in·lb) (8680 in·lb) (13020 in·lb) (17360 in·lb)
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Page 29: Operation Principle
4. OPERATION PRINCIPLE 4-1 Operation principle The backlash revision type potentiometer precisely detects and feedbacks the exact output shaft position to the servo control circuit (Control Pack). The servo control circuit makes comparison between input signal level (4~20mA DC) and output shaft position internal feedback level, then turns the motor in direction to balance them, and stops the motor instantaneously when they are balanced. -
Page 30: Installation
CAUTION ON ENVIRONMENTAL AND INSTALLATION CONDITIONS 5. INSTALLATION 5-1 Installation Cautions on indoor installation Avoid a hazardous environment, as this product is not explosionproof. Cover the whole body when installing the unit in a place with water or fluid splashing. Reserve a room for manual override operation and wiring / installation work. -
Page 31: Wiring
CAUTION ON WIRING WORK 6. WIRING 6-1 Cables Power cable Use a proper size power cable to provide sufficient current to the unit. When cord-lock type conduit is used, use a proper size / round shape cable and sealing materials to prevent water ingress from the thread part. For normal type 1/2 inch cord-lock, 11mm (outside dia.) cable is recommended. -
Page 32: Assembly With A Valve
CAUTION: Make sure that external power is OFF before attempting manual operation 7. ASSEMBLY WITH A VALVE 7-1 Names of parts An actuator is assembled with a valve by mounting hardware. The actuator is easily detached from the valve in case of trouble / maintenance. 7-1 Assembly procedures (Example of open yoke with two piece cramp type coupling) A : For a valve without mechanical stop on close side A-1. -
Page 33: Power And Signals
B-3. Position the actuator at 0 % (full close), and set the actuator limit switch so as to work at 0 %. (Note that the close limit switch is usually set at a half turn of manual handle beyond the full close signal position.) (See FIG.9) B-4. -
Page 34: Wiring Diagram
8-4 Wiring diagram (Standard Spec.) " &... - Page 35 8-4 Wiring diagram (Optional Spec. with input and Space Heater) 0~10V DC " &...
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Page 36: Control Pack
CAUTION: DO NOT TOUCH HOT (POWERED) WIRES 9. CONTROL PACK 9-1 Names of parts CAUTION: Do not connect AC power supply to the IN PUT signal terminals. If AC power is applied to IN PUT terminals the Control Pack circuit will be damaged instantly. AC power supply terminals are the center two terminals with AC voltage indication. -
Page 37: Signal Off Mode
9-3 Signal Off mode When input signal is interrupted (or less than 2mA), the actuator will automatically go to the preset positions of open/stop/close. The signal off position is easily set by the 1-2-3 position switch. Note that this is not a power-fail-safe function. The external power supply must be supplied to operate the motor. -
Page 38: Zero/Span Adjustment
9-5 Zero/Span adjustment ZERO volume CW = To increase (to OPEN direction) Adjustable range: - 25 ~ +25 % SPAN volume CW = To increase (to OPEN direction) Adjustable range: - 50 ~ +200 % * Zero/Span volumes are appropriately adjusted before shipment. Do not adjust them after shipment unless imperatively required. -
Page 39: Electrical Operation
CAUTION: Confirm safety and cable connections before starting electrical operation 10-2 Electrical operation 1. Before starting electrical operation, confirm the followings are all appropriate: Installation conditions Ambient temperature and fluid temperature Assembly with valve Positions at full close and full open Wiring conditions and connections (no breaks, no short circuits) Water ingress prevention at conduit entry Covers closed tightly... -
Page 40: Adjustment
11. ADJUSTMENT 11-1 Limit Switches Adjustment procedures are explained in the following sections for 4~20mA input signal example. <Nucom-10NS> 1. Retire the Mechanical Stopper Bolts. (See 11-2) 2. Remove Electric Unit Cover (top with window). Limit Cam 3. Remove Position Indicator. The upper limit switch is for Close, lower limit switch is for Open. - Page 41 <Nucom-10NM> 1. Retire the Mechanical Stopper Bolts. (See 11-2) 2. Remove Electric Unit Cover (top with window). Limit Cam 3. Remove Position Indicator. Looking from the Control Pack side, left limit switch is for Open, and right limit switch is for Close. (2 extra limit switches (contact output) are available as option.) The cam is 3 layer structure.
- Page 42 <Nucom-10NL, -100, -150, -200> 1. Retire the Mechanical Stopper Bolts. (See 11-2) 2. Remove Electric Unit Cover (top with window). Limit Cam 3. Remove Position Indicator. Looking from the Control Pack side, left limit switch is for Open, and right limit switch is for Close. (2 extra limit switches (contact output) are available as option.) 4.
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Page 43: Mechanical Stop
11-2 Mechanical Stop 1. Referring to Fig.21, adjust the mechanical stops with the stopper bolts and nuts as follows. A) Set the limit switches effective (on) at 1/2 handle turn outside the input signal Open/Close positions (i.e. 20mA (5V) = Open / 4mA (1V) = Close in RA setting). (See 11-1) B) Set the mechanical stop at 1/2 handle turn outside the limit switch “on”... -
Page 44: Troubleshooting
12. TROUBLE SHOOTING TROUBLE AND PROBABLE CAUSE SOLUTION Motor does not start Power failed or dropped Check and supply correct range of power Signal failed or dropped Check and input correct range of signals Wire broken or disconnected Change the wire or re-connect the terminal Lower the ambient temperature or decrease duty rate Thermal protector functioned Eliminate overload at valve... - Page 45 Modulating Electric Operation Manual/Supplemental – Action Monitor LED on Control Pack CP-10 Opening Action Monitor LED – Span Volume Side Closing Action Monitor LED – Zero Volume Side NORMAL OPERATION During Opening Action ------------------------------------------------------- Open LED – ON At Open Travel / Torque Limit (OLS-1 / OTL-1) ----------------------- Both LEDs – ON During Closing Action ---------------------------------------------------------Close LED –...
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