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S350P Proportional Plus Integral Temperature Stage Module
The S350P is used in conjunction with the A350
Temperature Control to add proportional or
proportional plus integral staging capability. The
S350P is an electronic control with analog 0 to 10
VDC and 0 to 20 mA outputs.
As with all System 350 products, the S350P is housed
in a NEMA 1, high-impact plastic enclosure. The
modular design provides easy, plug-in connections for
quick installation and future expandability.
Plug-in Connectors and
35 mm DIN Rail Mountability
Proportional or Proportional
Plus Integral Output
Minimum Output Adjustable
from 0 to 60%
Adjustable Throttling
Range of 2 to 30F° (1 to 17C°)
Field-selectable Reverse
or Direct Acting Mode
Three User-selectable
Integration Constants
Light-Emitting Diode (LED)
Bar Graph Display of Output
© 2014 Johnson Controls, Inc.
Part No. 24-7664-1202, Rev. A
Code No. LIT-930086
System 350
Figure 1: S350P Electronic Proportional Plus Integral
Features and Benefits
Eliminates wiring between modules and reduces
installation costs
Adds proportional or proportional plus integral
staging capability to all A350 Temperature
Controls
Tailors the output to the requirements of the
controlled device; can also be used to set
minimum valve or damper position
Enables the user to tune the system for optimum
performance
Works in heating or cooling applications
Provides selection of the integration constant for
applications requiring proportional and integral
control
Aids in adjustment, tuning, and troubleshooting
FANs 930, 930.5
Add-On Modules Section
Product/Technical Bulletin S350P
Issue Date April 8, 2014
Temperature Stage Module
1
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Related Manuals for Johnson Controls Penn System 350 S350P
Summary of Contents for Johnson Controls Penn System 350 S350P
- Page 1 Provides selection of the integration constant for Integration Constants applications requiring proportional and integral control Light-Emitting Diode (LED) Aids in adjustment, tuning, and troubleshooting Bar Graph Display of Output © 2014 Johnson Controls, Inc. Part No. 24-7664-1202, Rev. A Code No. LIT-930086...
- Page 2 pplication Overview peration The S350P Proportional Stage Module must be used IMPORTANT: Use this A350P Proportional Plus in conjunction with an A350 Temperature Control. The Integral Temperature Stage Module only as an operating control. Where S350P receives its power, setpoint, and sensor inputs failure or malfunction of the module from the A350.
- Page 3 Cover Screws (Quantity = 4) Integration DIP Switch Module Connector THROT OFFSET RAN GE OUTP UT Slow Medium Fast 1 2 3 4 Reverse Acting LD Indicator Direct (Percent of Output) Acting V C I Operation Mode Jumper Positions Figure 2: Interior View Illustrating S350P Features Offset The offset can be adjusted from 0 to 30F°...
- Page 4 Included with the S350P is a Celsius scale throttling minimum output adjustment may also be used to set range decal. If the Celsius scale is desired: valves or dampers to minimum position. 1. Use a small screwdriver to pry underneath the Make the adjustment at the minimum output existing decal and remove it along with the potentiometer marked as MIN OUTPUT (Figure 2).
- Page 5 Off (Switch 1 to On position, all others Off) On traditional proportional plus integral controls, the amount of correction becomes too large if the system Provides proportional only operation. load exceeds the capacity of the equipment. When Slow (C3) (Switch 2 to On position, all others ...
- Page 6 imensions 0.145 Mounting Slot 3.68 for No. 6 Screws 2.94 S350P 5.00 2.40 1.56 0.42 DIN Rail Mount 2.40 0.85 0.875 Conduit Hole Figure 7: S350P Dimensions, in./mm 6 Add-On Modules—S350P Proportional Plus Integral Temperature Stage Module Product/Technical Bulletin...
- Page 7 Connections can be made to both the voltage nstallation and Wiring and milliampere outputs, allowing the S350P to drive two outputs off the same RA or DA ramp The S350P Temperature Control is housed in a simultaneously. This feature can be used to compact NEMA 1 plastic enclosure designed for drive motor actuators of several different types standard 35 mm DIN rail mounting.
- Page 8 1. Check for proper voltage applied to the A350 Note: Before setting the minimum output control. potentiometer, be sure the control is not generating an analog output signal. a. Connect a Digital Voltmeter (DVM) between the 24V (+) and C (-) terminals located on For each 10% increase in range, one bar lights the A350’s left side terminal block.
- Page 9 Do not make field repairs or perform calibration. b. Turn the A350’s setpoint to minimum. SET189A Temperture Sensors and replacement c. On the S350P, turn the throttling range and controls are available through Johnson Controls the minimum output to the minimum position representatives. by turning both potentiometers counterclockwise.
- Page 10 The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these specifications, consult the local Johnson Controls office. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.