Bray S30/S70 User manual

Bray Controls Commercial Division
13788 West Road, Suite 200A
Houston, Texas 77041
[email protected]
Phone: [phone]
Fax: [phone]
www.braycommercialdivision.com
Calibration & Testing 2-Way S30 S31 Valve with S70 Electric Actuator
1
12/13/19
www.braycommercialdivision.com
2-way Assembly, S30/S70 and S31/S70
1 Calibraon
1.1 Potenometer Installaon
1.2 Close Cam
1.3 Potenometer Drive Gear
1.4 Open Cam
2Sertvo Pro Tesng
3 Servo NXT Tesng
PRECAUTIONS:
•Wear safety glasses and all other appropriate safety equipment before performing any of
the listed tasks
•Assure all components are present before assembly
•This Work Instrucon must be thoroughly reviewed and understood before conducted
CAUTION: Risk of Electric Shock.
Disconnect the power supply before
making electrical connecons
to avoid electric shock.
CAUTION: Risk of Property Damage.
Do not apply power to the system before
checking all wiring connecons. Short
circuited or improperly connected wires
may result in permanent damage to the
equipment.
IMPORTANT: Do not exceed the electrical rangs of
the S70 Actuator.

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2
1 Calibraon
CAUTION
The electrical travel switches must be set to acvate (depress) prior to reaching the
mechanical travel stops. The cams are color coded (green for open, red for closed).
NOTE: Manual travel stops are designed to prevent manual overtravel from turning the handwheel, not
to stop the electric motor. The travel stops have an adjustment range of approximately 10-degrees.
NOTICE: Cam Locking Screw must be loosened before each cam/pot drive gear adjustment and re-
ghtened aer each cam/pot drive gear adjustment. It is likely that the rotaon of one will move the
other. Hold the other knobs or cams/pot drive gearduring adjustment. See [Figure 1].
[Figure 1]

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1.1 Potenometer Installaon
NOTICE: Step 1.1 applies to potenometer installaon and oponal Servo Pro potenometer inial
seng, for all others skip to step 1.2.
1.1.1 Manually operate the actuator hand wheel counterclockwise unl the valve reaches the desired
fully open posion.
1.1.2 Mount the appropriate potenometer in the respecve locaon and GREENindicator
orientaon depicted in [Figure 2].
Size 180 Size 6, 12 & 30
[Figure 2]

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1.2 Close Cam
1.2.1 Skip to 1.2.2 for On/Offelectronic modules. Servo electronic modules somemes require special
sengs based on the Purchase Order documentaon (i.e. reverse acng, 4-20mA signal input, 4-
20mA feedback, fail open, etc.). Pull the Handwheel to disable the electric motor. Use the
appropriate operaons manual if instrucons are needed to adjust the servo sengs. Follow the
applicable steps below:
Servo Pro
1. Adjust dip switch sengs.
2. Apply power to power terminals.
Servo NXT
1. Apply power to power terminals.
2. Adjust display sengs using arrow keys and checkmark.
1.2.2 Manually operate the actuator hand wheel clockwise unl the valve reaches the desired fully
closed posion. This can be accomplished by equalizing the distance "D" from the face of the valve
to the edge of the disk on both sides of the valve using a screwdriver. See [Figure 3].
[Figure 3]
1.2.3 Rotate the RED Cam Adjustment Knob with a flat head screwdriver unl the cam lobe just acvates
(depresses) the switch from a clockwise direcon. This can be accomplished by using a switch
contact indicator device with lights or by listening for the sound that the contact makes.

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1.3 Potenometer Drive Gear
1.3.1 The BLACK Potenometer Drive Gear is not used for On/Offactuators. Skip step 1.3.2.
1.3.2 For NXT Servo actuators, the Potenometer's Volts Direct Current (VDC) must be measured using
a Mulmeter. For Pro Servo actuators, this step is oponal. See [Figure 4]
Tesng Potenometer Voltage
3. Set Mulmeter max range between10-100 VDC.
4. Contact mulmeter NEGATIVE to FB Pot Com ( wire).
5. Contact mulmeter POSITIVE to FB Pot Wiper (ORANGE wire).
[Figure 4]
Rotate the BLACK Potenometer Drive Gear Adjustment Knob with a flat head screwdriver unl
the Mulmeter VDC measurement falls within the tolerance listed below, for the respecve Servo
Pro or Servo NXT.
Servo Pro: 0.29 – 0.37 VDC
Servo NXT: 0.20 – 0.25 VDC

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Note: Make gentle contact when bringing the mechanical stop in contact with the output gear. When
ghtening the nut, use two wrenches. One to hold the bolt in place and one to ghten the nut. We want
to avoid “driving” the mechanical stop intothe internal segment gear and cracking the plasc washer.
1.3.3 With the travel switch in the closed posion, rotate the handwheel clockwise 1/2 a turn for
Housing Size 6, 1 turn for Housing Size 12, 1/2 a turn for Housing Size 30, and 2 turns for Housing
Size 180. Adjust the closed travel stop bolt unl it booms against the internal segment gear and
lock it in posion with the locknut. See [Figure 5].
[Figure 5]

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1.4 Open Cam
1.4.1 Manually operate the actuator handwheel counterclockwise unl the valve reaches the desired
open posion. Visual alignment to center the valve disk at 90 degrees is sufficient, as changes in
resilient seat valve disk flow coefficients are negligible in open posion within a reasonable range.
1.4.2 For On/Offactuators, rotate the GREEN Cam adjusng knob unl the cam lobe just acvates
(depresses) the switch from a counterclockwise direcon. This can be accomplished by using a
switch contact indicator device with lights and by listening for the sound that the contact makes.
Skip step 1.4.3.
1.4.3 For NXT Servo actuators, the full open valve disk posion will depend on the VDC measured at the
appropriate Potenometer terminals. Refer to the respecve VDC values below. Noce the
GREENCam does not directly affect the Potenometer measurement. Aer every GREEN Cam
adjustment, the actuator must rotate to match the new full Open posion relave to the new
GREENCam posion. For Pro Servo actuators, this step is oponal.
Servo Pro: 4.63 – 4.71 VDC
Servo NXT: 2.95 - 3.00 VDC
1.4.4 With the travel switch in the open posion, rotate the handwheel counterclockwise 1/2 a turn for
Housing Size 6, 1 turn for Housing Size 12, 1/2 a turn for Housing Size 30, and 2 turns for Housing
Size 180. Adjust the open travel stop bolt unl it booms against the internal segment gear and
lock it in posion with the locknut.
1.4.5 Apply respecve power according to the electronic module's requirements. Verify all LED
lights illuminate, upon inial power up. Noce that LEDs are not applicable to Interposing
Relay Boards (IRB).

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2 Servo Pro Tesng
2.1 Deadband, Open Speed and Close Speed potenometers shall be set to full open (counter-
clockwise rotaon), unless otherwise noted on purchase order.
2.2 Put the Servo Pro into autocalibraon mode by pressing and holding the autocalibraon
buon for a minimum of 2 seconds. Wait for autocalibraon to complete before moving to
next step.
2.3 Electrically command the actuator full open and close to verify proper valve disk posion and
recheck potenometer VDC measurements to the specificaons below, using a 0-10 VDC signal
generator command input. If posion and potenometer measurements are good, then
calibraon is complete. Otherwise return to the applicable 1step or ask a supervisor for assistance.
Close Posion = 0.21 – 0.45 VDC
Open Posion = 4.55 – 4.79 VDC
2.4 Verify the STATUS LED is flashing GREEN. For any other status lights correct the fault, check
applicable operaons manual or consult your supervisor.

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3 Servo NXT Tesng
3.1 Put the Servo NXT into autocalibraon mode by pressing the autocalibraon buon. Wait for
autocalibraon to complete before moving to next step.
3.2 Electrically command the actuator full open and close to verify proper valve disk posion and
recheck potenometer VDC measurements to the specificaons below, using a 0-10 VDC signal
generator command input. If posion and potenometer measurements are good, then
calibraon is complete. Otherwise return to the applicable 1step or ask a supervisor for assistance.
Close Posion = 0.14 – 0.30 VDC
Open Posion = 2.90 – 3.06 VDC
3.3 For actuator sizes 13,000inlb and 18,000inlb, disable the Motor Stall Detecon. The Stall
Detecon feature can be disabled by simultaneously pressing and holding the Up and Down
Arrow keys for 5 seconds. Aer 5 seconds, all valve posion indicators will flash
simultaneously for 1 second indicang that the feature has been disabled.
3.4 Verify the RED BRAY logo is flashing and that no fault lights are on.