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Johnson Controls System 350 P352AB Series Скачать руководство пользователя страница 4

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Basic Controls—System 350 P352AB Electronic Pressure Control Series Product/Technical Bulletin

A

djustments (P352AB Control)

Perform the following steps to adjust the P352AB
control settings. (See Figure 3.) Refer to Figure 5 for
an example of the P352AB control in a typical Direct
Acting/Reverse Acting application.

!

WARNING:

Risk of Electrical Shock.

Disconnect power supply to
avoid possible electrical shock or
equipment damage. More than
one disconnect may be required
to completely de-energize
equipment.

1. Ensure all power to system is off.

2. Remove the P352AB control cover by loosening

the four captive cover screws.

3.

Set the mode of operation

by positioning the

jumpers (at Jumper Terminal J1) horizontally for
Direct Acting or vertically for Reverse Acting.

Note: The P352AB controls are configured in the

DA mode at the factory.

4.

Adjust the differential

using the potentiometer

marked DIFF ADJUST to the desired setting.
Clockwise rotation increases the differential.

5.

Adjust the setpoint

using the setpoint adjustment

dial to the desired setting.

After power is applied to the control, a more
accurate setting of the setpoint can be made by
utilizing the D352A Pressure Display Module.

6. Replace the cover on the control and fasten in

place with screws.

7. Restore power to system.

Module

Connector

Concealed Setpoint

Adjustment Dial

Differential

Potentiometer

N.C.

Relay

N.O.

Terminals

COM

Output

Relay Energized

LED Indicator

Jumper

Position at J1

Reverse Acting

Direct Acting

Cover Screw

(One of Four)

24V

COM

VDC
SEN

Wire

Terminal

Block

Relay

Figure 3: Interior View and Typical Wiring of the P352AB Control

A

dd-On Modules

The Y350R Power Module, D352 Digital Pressure
Display, and S352A Stage Modules snap together and
plug into the P352AB Electronic Pressure Control via
connectors on both sides of each add-on module.

Y350R Power Module

The Y350R Power Module provides a convenient
method of powering System 350 modules from a
120 or 240 VAC power source.

The Y350R Power Module can be plugged into the
right side of the P352AB controls or any of the add-on
modules. The Y350R Power Module is capable of
providing power to a P352AB control, a D352 Display
Module, and up to five S352A Stage Modules. (Refer
to the

System 350

TM

Y350R Power Module

Product/Technical Bulletin, LIT-930090

, for more

information.)

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Содержание System 350 P352AB Series

Страница 1: ... all System 350 products the P352AB control is housed in a NEMA 1 high impact thermoplastic enclosure The modular design provides easy snap together connections for quick installation and future expandability Figure 1 P352AB Electronic Pressure Control Features and Benefits Modular Design Provides the flexibility to add S352A Stage Modules D352 Display Module and Y350R Power Module Plug together C...

Страница 2: ...ontrol operates on 24 VAC and has an SPDT relay output A front panel LED lights to indicate when the relay is energized The P352AB controls are used with the P399 Electronic Pressure Transducers which are available in several pressure ranges and provide a ratiometric analog signal 0 5 to 4 5 VDC based on the sensed pressure IMPORTANT The P352AB controls use an input signal from the P399 Electronic...

Страница 3: ...ED illuminates Note The P352AB controls are configured for DA mode at the factory Refer to Figure 5 for an example of a typical Direct Acting Reverse Acting application Dimensions 1 3 16 2 3 8 61 7 16 11 1 1 2 40 1 8 4 DIN Rail Mount 7 8 22 Conduit Hole Mounting Slots For No 6 Screws 5 127 2 15 16 75 2 3 8 61 7 8 22 2 1 4 57 2 0 m 13 ft 4 0 m or Wiring Harness 6 1 2 ft P399 Transducer CONTROLS CON...

Страница 4: ...fter power is applied to the control a more accurate setting of the setpoint can be made by utilizing the D352A Pressure Display Module 6 Replace the cover on the control and fasten in place with screws 7 Restore power to system Module Connector Concealed Setpoint Adjustment Dial Differential Potentiometer N C Relay N O Terminals COM Output Relay Energized LED Indicator Jumper Position at J1 Rever...

Страница 5: ...te signal The DA RA relay will remain energized until the error is corrected Adjustments S352A Stage Module Perform the following steps to adjust the S352A stage module settings See Figure 4 Refer to Figure 5 for an illustration of the S352A Stage Modules in a typical Direct Acting Reverse Acting application WARNING Risk of Electrical Shock Disconnect power supply to avoid possible electrical shoc...

Страница 6: ...han one disconnect may be required to completely de energize equipment IMPORTANT Make all wiring connections in accordance with the National Electrical Code and all local regulations Use copper conductors only Do not exceed the control s electrical ratings Transducer Wiring The P352AB control supplies 5 VDC power to the P399 Electronic Pressure Transducer The transducer is wired to three of the fo...

Страница 7: ...te and tape Do not ground this end of cable shield 120 VAC Figure 6 System 350 Powered by an External Transformer Using 120 VAC Power Supply 120 VAC P352AB Y350R S352A S352A D352A S352A Load Load Load Load Isolate and tape Do not ground this end of cable shield P399 Transducer Wiring Harness White SEN Red VDC Black COM Wire Terminal Block 24V COM VDC SEN N O Terminals COM Output N C Relay Shield C...

Страница 8: ...and equipment check that all of the wiring is correct and all of the connections are tight b Apply power to the control c With the DVM check the voltage between the 24V and the COM terminals on the terminal block on the upper left side of the control If an external 24 VAC transformer powers the control select AC volts on the DVM The voltage must be between 20 and 30 VAC If a Y350R Power Module pow...

Страница 9: ...e Note Depending on the accuracy of the instrumentation used to measure the actual pressure at the transducer psiT and the transducer output voltage Vo the actual and calculated pressure may not exactly agree 10 90 50 Output Voltage of Power Supply 4 5 VDC 2 5 VDC 0 5 VDC 500 psi P352AB 3 P399B Pressure psi P352AB Model P399 Transducer 100 psi P352AB 2 P399A P 3 5 2 A B 2 P352AB 3 P352AB 4 Figure ...

Страница 10: ...what the On and Off setpoint pressure values are for each module f If a stage module LED and relay do not perform as expected adjust the differential and offset potentiometers to their minimum value and repeat the previous checks g If a stage module still does not perform properly replace the stage module 6 Check the display module for proper operation If there is no display module in the system s...

Страница 11: ...sure connection 0 to 500 psis 1 4 in SAE female flare pressure connection Electronic Pressure Transducers for the P352AB 4 P399CAA 1C P399CAC 1C 0 to 750 psis 1 8 in NPT male pressure connection 0 to 750 psis 1 4 in SAE female flare pressure connection Wiring Harness WHA P399 400C WHA P399 200C 13 1 ft 4 0 m length 6 6 ft 2 0 m length Display Module D352AA 2C Digital Pressure Display Module Stage ...

Страница 12: ...ty 125 VA at 24 240 VAC Ambient Temperature Operating 30 to 150 F 34 to 66 C Shipping 40 to 185 F 40 to 85 C Ambient Humidity 0 to 95 RH Non condensing Material Case Cover NEMA 1 High Impact Thermoplastic Agency Listing UL Listed CCN XAPX File E27734 UL Listed for Canada CCN XAPX7 File E27734 Only one voltage source may be used Add on Modules S352A Y350R D352 Relay Contacts SPDT 10 Amperes Non ind...

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