AUMA SA 07.1 User manual

OPERATION INSTRUCTONS

MODEL SA 07.1 – SA 48.1

Multi-Turn Actuators

AUMA Actuators, Inc. USA

100 Southpointe Boulevard • Canonsburg, PA 15317

724-743-2862 • Fax: 724-743-4711

www.auma-usa.com

email: [email protected]

This operation instruction is valid for the types: SA, SA(IP68), SAL, SAEL, SAH, SAR,

SAFM, SARFM, SAEx, SAREx.

TABLE OF CONTENTS

Page

1. Transport and Storage............................................. 1

2. Service Conditions................................................... 1

3. Mounting to the Valve/Gearbox ............................... 1

4. Manual Operation.................................................... 2

5. Electrical Connections ............................................. 2

•Terminal Access.................................................... 2

•Wiring Connections............................................... 3

•Completion of Electrical Connection ..................... 3

6. Test Run.................................................................. 4

•Operating Direction for Test Knobs....................... 4

7. Setting Of Limit Switching........................................ 5

•Setting the CLOSED End Position........................ 5

•Setting the OPEN End Position............................. 5

8. Setting of DUO counter Gear or Four Gear Train ... 5

Limit Switching

9. Setting of Torque Switching..................................... 6

10. Setting of Mechanical Dial Position Indicator........... 6

11. Setting of the Potentiometer .................................... 7

12. Setting of the Current Transmitter RWG.................. 7

13. Machining of Stem Nut, Form A Output Drive.......... 7

14. Maintenance............................................................ 8

Multi-turn actuators are high quality electro-mechanical devices. Possible damage can be avoided by

observing the following items.

Adjustment of position feedback transmitters, analog positioners and even limit switches and

mechanical stops may be required in the field after the automated valve is installed. Actuators with

digital communication boards require adjustment in the field–similar to a positioner.

1. TRANSPORT AND STORAGE

•Transport to place of installation in sturdy packing.

•Do not lift the actuator by the handwheel.

•Store in well ventilated, dry room.

•Protect against humidity from the floor by storing on a shelf or on a wooden frame.

•Cover to protect against dust and dirt.

•Apply corrosion protection agent to machined surfaces.

2. SERVICE CONDITIONS

AUMA multi-turn actuators can be used at following ambient conditions:

Model Temperature

SA -20°F to +175°F (Standard)

SAL -40°F to +140°F

SAH +32°F to +250°F

SA(IP68) -20°F to +175°F

SAR -20°F to +140°F

3. MOUNTING TO THE VALVE/GEARBOX

Mounting and operation can be in any position.

•Check whether output drive flange suits the valve/gearbox.

CAUTION: Spigot at flanges should be loose fit!

For form A output drive the thread must correspond with thread of the valve stem. If not

ordered explicitly with thread, the stem nut is supplied unbored or with pilot bore (Figure C).

For machining the stem nut refer to Section 13.

Form B output drives are normally supplied with bore and one keyway (Figure D).

•Check whether bore and keyway correspond with the input shaft of the valve or gearbox.

•Degrease mounting surfaces at actuator and valve/gearbox thoroughly.

•Apply lubricant to input shaft of the valve/gearbox.

•Place actuator on the valve/gearbox and use bolts with a minimum quality of 8.8 to fasten. Tighten

diagonally.

4. MANUAL OPERATION

Engaging Handwheel (Figure B)

CAUTION: Manual operation should not be engaged if motor is running.

•Lift declutch lever in center of handwheel to fully extended position while slightly turning the

handwheel.

•Release declutch lever, it must snap back to its original position; manual mode remains engaged.

Manual Operation

• WARNING •

DECLUTCH LEVER MUST BE FULLY RELEASED AND RETURNED TO UNENGAGED POSITION (90°)

WHILE IN MANUAL HANDWHEEL OPERATION TO PREVENT PHYSICAL DAMAGE.

•If power tools are used, the permissible speed is 300 rpm.

•For two-inch nut or chainwheel operation refer to separate instructions.

Disengaging Manual Operation

•Manual drive disengages automatically when motor is started.

5. ELECTRICAL CONNECTIONS

CAUTION: Observe safety regulations. Check whether the power supply (voltage, phase and

frequency) complies with the motor nameplate.

Terminal Access

•Take off the terminal compartment cover.

•Loosen cheese head screws inside the cover and remove multi socket carrier.

•Check the location of the terminal connections.

For SA 07.1 - SA 16.1 motor power is connected in center of socket carrier.

For SA 25.1 - SA 48.1 motor power is connected in separate conduit entry (Figure A).

For SA 07.1 - SA 48.1 control power is connected to sockets in socket carrier.

•Attach conduit to terminal compartment cover.

CAUTION: Appropriate conduit and sealing methods must be followed to ensure the type of

enclosure furnished.

Wiring Connections - Refer to drawing inside terminal compartment cover

NOTE: The drawing contains the required information for correct actuator electrical connection.

Typical customer controls are also shown.

•Connect motor wires to the designated terminals. Connect ground to designated terminal.

•Connect control wires to designated terminals in accordance with drawing.

CAUTION: The following must be considered when wiring an AUMA

actuator:

♦The time delay (i.e., from limit or torque switch tripping until the motor is switched off) should not

exceed 20 ms. We strongly recommend switching off the motor directly by installing the

corresponding switches in the control wiring to the contactor. This concern is especially important

when using PLC’s. Switch output to a PLC should be for indication only.

♦Each switch has contacts which are not completely isolated and therefore are suitable only for the

same voltage potential. (See drawing for detailed information.)

♦The valve manufacturer decides whether switching off in the end position should be by limit switch

(limit seating) or torque switch (torque seating).

♦AUMA motors have 3 thermoswitches as standard equipment. These switches must be directly

wired into the control circuit to protect the motor. If these are not connected, the warranty for the

motor is not valid.

Completion of Electrical Connection

•Clean the sealing faces at plug or cover for terminal compartment, check to ensure that the O-ring

is not damaged.

•Apply a thin film of non-acid grease (e.g., Vaseline) to sealing faces.

•Place cover and fasten the 4 bolts. Tighten diagonally.

CAUTION: NEMA 7 enclosures require that a conduit seal be placed as close as practicable to the

conduit entries at the actuator.

6. TEST RUN (Figure E)

Remove cover to the control unit compartment (15.0) and, if provided, the MDPI disc (156.0).

•Bring the valve manually to an intermediate position.

•Check phase rotation.

•Run the actuator briefly in the open direction. If the direction of rotation is incorrect, switch off

immediately and rewire motor connections U1 and W1.

•The red test knobs on the control unit provide a way to manually operate the limit and torque

switches.

While running the actuator in the open direction, turn the red test knob OPEN toward the DOL

arrow.

♦If the motor stops, the control circuit is correct.

♦If the motor does not stop, turn off the motor power immediately. Check control circuit and

correct wiring.

Operating Direction for Test Knobs

Torque Switch Limit Switch

open DOL Arrow WOL Arrow

close DSR Arrow WSR Arrow

•Determine overrun in both directions (overrun is turns/travel from switching off until the actuator

movement stops.

The convention of “clockwise-to-close” has been used throughout this manual. A “clockwise-to-

open” valve or damper configuration represents a reversal of limit and torque switch position

(black area

of face plate of the control unit represents open and white area represents closed.)

7. SETTING OF LIMIT SWITCHING (Figure E)

•Engage manual drive as explained in Section 4.

Setting of the CLOSED End Position (black area)

•Turn the handwheel clockwise until the valve is fully closed. Consider possible overrun as

described in Section 6.

•Press down and turn spindle (A) in direction of the arrow. A ratchet will be felt and heard, the

pointer (B) turns for every 90 degrees.

CAUTION: DAMAGE MAY RESULT TO THE COUNTER GEAR MECHANISM IF THE SLOTTED

SHAFT IS NOT PUSHED DOWN WHILE TURNING TO ADJUST THE LIMIT SWITCH.

When pointer moves towards point (C), the spindle should not be turned any further. If the spindle

has been turned beyond that point inadvertently, continue turning and approach the setting point

again.

CAUTION: Make sure that spindle (A) springs up to its original position.

NOTE: Distinct “clicks” will be heard and felt while turning the slotted shaft. When the pointer

points toward the switch tripped indicator, no additional clicks should be felt or heard. If

additional clicks are heard or felt, the setting instructions (above) must be repeated.

•The limit switch is now properly set. Release the slotted shaft (to re-engage the counter gearing)

by removing the screwdriver blade. Ensure that the shaft returns to the previous upright position.

Setting of the OPEN End Position (white area)

•Turn the handwheel counter-clockwise until the valve is fully open. Consider possible overrun as

determined in Section 6. Compensate overrun by backing off with the manual drive.

•Repeat setting procedure as described for the closed position using spindle (D), pointer (E) and

point (F).

8. SETTING OF DUO COUNTER GEAR OR FOUR GEAR TRAIN LIMIT SWITCHING

(optional) (Figure E)

CAUTION: The intermediate switching point should be approached for setting purposes in the

same direction as in motor operation.

•Move valve to the required intermediate position.

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