Installation Instructions

ManualsBrandsSiemens ManualsShort Stroke (BC3)SQV Series Electronic Valve Actuators (For Use with 2-1/2-Inch to 6-Inch Pressure Independent Control Valves), Technical Instructions

Document No. 129-801

June 19, 2015

SQV Series Electromotoric Valve

Actuators

(For use with 2-1/2 to 6-inch Pressure Independent

Control Valves)

Item Number 129-801, Rev. DA Page 1 of 7

Product Description

The SQV spring return (fail-safe) actuator requires a

24 volt power supply and a 0 to 10 Vdc or floating

control signal to control the Pressure Independent

Control series valve with 3/4-inch to 1-1/2-inch (20 to

40 mm) stroke.

Product Numbers

SQV91P30U Normally Open

SQV91P40U Normally Closed

Contents

• SQV Actuator

• Conduit Adapter

• Stroke Indicators (2)

• Anti-rotation Device

Warning/Caution Notations

WARNING:

Personal injury or loss of life

may occur if you do not follow

the procedures as specified.

CAUTION:

Equipment damage or loss of

data may occur if you do not

follow the procedures as

specified.

Troubleshooting

• Check the wiring for the proper connections.

• If actuator becomes inoperable, replace the

unit.

Required Tools

• 6 mm hex key

• 3/16” flat-blade screwdriver or T15 Torx

driver (to remove wiring compartment cover)

• Small, flat-blade screwdriver (for wiring

terminal block)

Expected Installation Time

20 to 30 minutes

Prerequisites

Figure 1. Acceptable Mounting Positions.

NOTE: This device complies with part 15 of the

FCC Rules. Operation is subject to the

following two conditions: (1) This device may

not cause harmful interference, and (2) this

device must accept any interference

received, including interference that may

cause undesired operation.

NOTE: This equipment is intended to be supplied by

a Class 2 power source. All control signals

and output are Class 2 AC/DC.

Allowed wire size: 16 to 20 AWG

Installation

1. Using a 6 mm hex wrench, loosen the two hex

head cap screws on the bonnet connection. See

Figure 2.

Figure 2. Hex Head Cap Screws.

Summary of content (7 pages)

PAGE 1
Installation Instructions Document No. 129-801 June 19, 2015 SQV Series Electromotoric Valve Actuators (For use with 2-1/2 to 6-inch Pressure Independent Control Valves) Product Description The SQV spring return (fail-safe) actuator requires a 24 volt power supply and a 0 to 10 Vdc or floating control signal to control the Pressure Independent Control series valve with 3/4-inch to 1-1/2-inch (20 to 40 mm) stroke.
PAGE 2
Document No. 129-801 Installation Instructions June 19, 2015 Installation, Continued NOTE: Only loosen the screws until flush with brackets; do not remove. See Figure 3. 4. To adjust the height of the stem connection: a. Push the crank arm until the arm is parallel with the actuator. b. Turn the handle until the actuator stem is fully retracted. c. To lock the stem in place, position the handle at a 45° angle until you hear it snap into place. See Figure 5, Step 2. Figure 3. 2.
PAGE 3
Document No. 129-801 Installation Instructions June 19, 2015 5. Use a 2.5 mm hex wrench to tighten the antirotation device set screw to 35 to 62 in-lbs (4 to 7 Nm. See Figure 8. Figure 8. Actuator/Valve Stem Connection 1. Figure 6. Push the crank arm until it is parallel with the actuator, then turn the crank arm in the proper direction to engage the actuator stem connection with the valve stem. See Figure 9. 4.
PAGE 4
Document No. 129-801 Installation Instructions June 19, 2015 Actuator/Valve Stem Connection, Continued 2. LED Status Crank down until you hear the stem connector snap into place. See Figure 10. Wiring Diagrams Figure 10. 3. Return the crank arm to its storage location. CAUTION: 0 to 10V/4 to 20 mA Do not rotate the actuator on the valve once the actuator and valve stem are connected, and/or the anti-rotation device is connected to the valve stem.
PAGE 5
Document No. 129-801 Installation Instructions June 19, 2015 Automatic Self-Calibration Operation When power is applied to the actuator for the first time, self-calibration takes place. During this process, both LEDs on the drive flash in red. 1. The stem extends until it reaches the lower mechanical stop in the valve. 2. Then, the stem retracts until it reaches the upper mechanical stop in the valve. 3. Self-calibration is complete.
PAGE 6
Document No. 129-801 Installation Instructions June 19, 2015 Spring Return 1. Ensure that the differential pressure across the valve is zero. See Figure 17. Figure 15. SQV91P30U Normally Open Actuator. Figure 17. WARNING: Do not disassemble the actuator. 2. Disconnect the electrical power. 3. To engage the manual override crank, pull back the crank arm until it springs into position. 4.
PAGE 7
Document No. 129-801 Installation Instructions June 19, 2015 Removing the Actuator from a Valve, Continued 5. Crank the actuator stem away from the valve stem enough to enable removal of the antirotation device. 6. Use a 2.5 mm hex wrench to loosen the antirotation device set screw. 7. Slide the anti-rotation device off the valve stem, and remove from the actuator arm. 8. Using a 6 mm hex wrench, loosen the two hex head cap screws on the bonnet connection. See Figure 19, Step 1.