Siemens Sqm50 User manual

Installation Instructions

Document No. 129-399

January 18, 2008

SQM5… Reversing Actuator with Line Voltage Input Signal

Item Number 129-399, Rev. BA Page 1 of 4

Product Description

Reversing actuator used to position flow control

valves, butterfly valves, dampers, or any application

requiring rotary motion with line voltage input signal

for Position Proportioning or Floating Control.

Product Numbers

SQM5x.xxxRxAx for line voltage input signals

Actuator Torque:

SQM50.2… 90 in/lb

SQM50.3… 90 in/lb

SQM50.4… 140 in/lb

SQM53.4… 200 in/lb

SQM56.5… 310 in/lb

SQM56.6… 400 in/lb

Max Shaft Torque:

AGA58.1 200 in/lb

AGA58.3 220 in/lb

AGA58.4 270 in/lb

AGA58.7 400 in/lb

SQM… motors allow torque on either end of the

AGA58.3 and AGA58.4 shafts.

NOTE: For detailed information, see Technical

Instructions 155-517P25.

Caution Notation

CAUTION:

Equipment damage may

occur if procedures are not

followed as specified.

Installation

Cover Removal

Use a Phillips screwdriver to loosen the two screws

on the actuator cover corners. See Figure 1.

Lift the screws and raise the cover. See Figure 2.

EA0564R1

EA0568R1

Figure 1. Figure 2.

Rotational Direction Verification

Actuator model numbers that end with “R” are

factory configured for clockwise (cw), minimum to

maximum rotation when facing the gear end of the

actuator, or counterclockwise (ccw) rotation when

facing the other end of the actuator. The gear end of

the actuator is the side opposite of the visual

position indicator

Actuator Mounting

SQM5… actuators can be mounted in any

orientation. Optional base mounting brackets are

available.

SQM5… actuators can also be face-mounted using

self-tapping screws in combination with the various

holes on the face of the actuator gear end.

Switch Adjustment

SQM5…actuators are factory-wired with Switch I

(maximum), Switch II (fully closed/economy position)

and Switch III (minimum/low-fire). The individual

switch cams I, II, and III are factory set to 90°, 0°

and 10°, respectively. See Figures 3 and 4.

Document No. 129-399

Installation Instructions

January 18, 2008

Page 2 of 4 Siemens Building Technologies, Inc.

70 0

CAM DRUM

RELEASE BUTTON

GEAR END

EA0561R3

ACTUATOR

POSITION SCALE SWITCH CAM I

SET AT MAXIMUM

SWITCH CAM II

SET AT ZERO ("ECONOMY")

SWITCH CAM III

SET AT MINIMUM

ACTUATOR POSITION

INDICATING POINTER CAM DRUM

ASZ... (1000 Ohm)

FEEDBACK POTENTIOMETER

DIAL POINTER ACTUATOR POSITION

INDICATING DIAL

SINGLE SWITCH

CAM POINTER

DOUBLE SWITCH CAM POINTER

Figure 3. Component Identification on the Cam Drum Side of the SQM5…Actuator.

NOTE: The single switch cam pointers are used

together with the black scales when

configured for ccw operation.

The double switch cam pointers are used

together with the red scales when

configured for cw operation.

The individual switch cams can be

adjusted by hand or with the use of the tool

attached to the outside of the hinged

switch terminal protection lid.

SQM5x.xxxRxA actuators without

potentiometer must be adjusted only

between 0° and 160°.

If a potentiometer is installed, the

adjustable range of the switches depends

on the range of the potentiometer.

SQM5x.xxxRxA3actuators have a 90°

potentiometer and the switches must be

adjusted between 0° and 90°.

SQM5x.xxxRxA4actuators have a 135°

potentiometer and the switches must be

adjusted between 0° and 135°.

Shaft Adjustment

The actuator shaft can be disengaged by pressing

the silver shaft release button. The button is located

above the grounding screw, under the hinged

terminal protection cover, and to the right of the

auto/manual switch. After pressing the shaft release

button in and slightly upward, the shaft can be

manually rotated. After the shaft has been manually

aligned to the closed position, re-engage the shaft

by pushing the shaft release button downwards.

Cam Drum Adjustment

Once the shaft has been set, the cam drum must be

manually aligned by pressing and holding the black

cam drum release button (see Figure 3). Rotate the

cam drum until the “0” mark on the actuator position

scale (left scale on the cam drum) is aligned with the

gray actuator position indicating pointer.

Position Indicating Dial Adjustment

The actual position of the SQM5… actuator is

indicated by the gray actuator position indicating

pointer (see Figure 3). The position is also displayed

by the indicating dial through the housing’s window.

Ensure that the actuator position indicating dial is

aligned with the actuator position scale. If

necessary, rotate the dial in the clockwise direction.

Document No. 129-399

Installation Instructions

January 18, 2008

CAUTION:

Turning the dial in the counterclockwise

direction may loosen the potentiometer

locking screw.

Electrical Connection

SQM5… actuators are equipped with two removable

conduit connection plates located on the upper

corner of the gear housing. Each plate is provided

with two threaded connections for 1/2-inch NPSM

conduit connectors. The use of flexible 14 gauge or

smaller stranded wire is recommended.

NOTE: SQM5… Actuators require a single-source,

single-phase power supply.

EA0555R3

AGA56.1A97

MAN AUTO

11 21

III III IV V

12 22 13 23 14 15

24 25

345

"Economy"/Fully closed

Minimum/Low fire

Maximum/High fire

Auxilliary

IV...VI

III

1213

21 12

16 26

actuator switch

wire leads

shown in

auto position

ASZ...

(1000 Ohm)

Figure 4. Basic Functional Diagram of AGA56.1…

AZ L

AUTO.

MAN.

AGA56.1A97

EA0554R3

Figure 5 AGA56.1A97 Terminal and Auto-Manual Board.

Commissioning

Manual Operation

1. Set the AUTO/MAN switch in the MAN position.

2. Connect ground to the screw located below the

shaft release button.

3. Connect neutral to the double terminal block,

located on the left side of the gray switch housing.

4. Only terminal "L" must be powered to enable

manual operation. The actuator can now be driven

to the maximum position (switch cam I) or the fully

closed "economy position" (switch cam II) by using

the toggle switch located to the left of the

AUTO/MAN switch.

Automatic Operation

1. Set the AUTO/MAN switch in the AUTO position.

2. Connect ground to the screw located below the shaft

release button.

3. Connect neutral to the double terminal block, located

on the left side of the gray switch housing.

4. Connect line voltage to terminal A to drive the

actuator in the opening direction.

5. Connect line voltage to terminal Z to drive the

actuator in the closing direction.

CAUTION:

Actuator damage will result if power is supplied

to terminals A and Z simultaneously.

Siemens Building Technologies, Inc. Page 3 of 4

Document No. 129-399

Installation Instructions

January 18, 2008

6. Use feedback potentiometer ASZ… for Position

Proportioning Control. This potentiometer is located

at the end of the cam drum.

For information on potentiometer installation, see

Technical Instructions 155-517P25.

Cover Installation

1. Lift the two screws on the cover corners and slide

the cover end into the groove at the gear end of the

actuator (See Figure 6).

2. Press the cover into place and then press the

screws inward and tighten (See Figure 7).

EA0567R1

EA0563R1

Figure 6. Figure 7.

The installation is now complete.

Dimensions

M 8

1-3/4

(44.5) 2-3/16

(55.5)

ALLOW 3.5" SPACE FOR

COVER REMOVAL

1-3/16

(30)

5/8

(16)

2-5/8

(67)

1/4

(6)

1-3/16

(30)

2-1/16

(52.5) 2-1/16

(52.5)

1-7/16

(36)

EA0522R2

5-1/4

(133)

7-1/16

(180)

2-1/16

(52.5) 2-1/16

(52.5)

3/8

(10)

Pg 13.5 / 1/2"

NPSM

7-1/16

(180)

5/16

(8.5)

6-7/16

(164) 5/16

(7.5)

1/16

(1) 1/8

(3.5)

EA0542R3

4-7/16

(113) 3-1/8

(80)

5-3/16

(132)

Figure 8. SQM5x.xxxRxx Dimensions in Inches (Millimeters).

Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as

design improvements are introduced. Other product or company names mentioned herein may be the trademarks of their respective owners.

Siemens Building Technologies, Inc.

1000 Deerfield Parkway

Buffalo Grove, IL 60089-4513

U.S.A.

Your feedback is important to us. If you have

comments about this document, please send them

to SBT_technical.editor.us.sbt@siemens.com

Document No. 129-399

Country of Origin: US

Page 4 of 4

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