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10    T-5800-3/T-5800-4 Technical Bulletin

of the actual spring range of
the controlled device.

4.

Apply the maximum master
“M” input pressure value
(Example: 60

°

F or 9 PSIG

per Fig. 6).

5.

Apply the corresponding
controlled variable “CV”
input pressure value
(Example:  80

°

F or

5.4 PSIG per Fig. 6).

6.

Set Point Dial Adjustment:

Adjust the set point dial to
cause the output pressure
to be at the midpoint of the
actual spring range of the
controlled device.

7.

Start up the system to be
controlled.  After a
reasonable period of time,
the receiver-controller
should be in control (as a
proportional-only controller)
WITHIN the throttling range
of the controlled device.

8.

Proceed to the Gain
Adjustment section.

Gain Adjustment (See Fig. 17)

Note:  All gain adjustments
must be made with the P/PI
jumper still removed from the
spigot.

Adjusting the gain dial will not
affect the controller set point;
however, the output pressure
may change when the gain dial
is adjusted.  Increasing the gain
will narrow the throttling range
(decrease offset), allowing the
control point to be closer to the
set point.  Decreasing the gain
will widen the throttling range,
forcing the control point away
from the set point.

Normally, having the gain arrow
set at the pointer represents a
reasonable gain adjustment
which would provide stability.

Increase the gain setting by
small increments until the
system becomes unstable and
begins to cycle.  Decrease the
gain setting slightly to remove
the cycling effect and mark this
position on the dial.  Rotate the
dial fully clockwise until it hits its
mechanical stop, then
counterclockwise to the midpoint
between the stop and the
marked position.  Doing so will
provide a suitable gain to allow
the introduction of the integral
function.

After the system stabilizes
again, reconnect the P/PI jumper
to return the integral function to
the receiver-controller.  After a
reasonable period of time, the
control point should stabilize at
the set point value and no
further adjustments will be
required.  If the control point
does not stabilize at the set
point value or if excessive
cycling occurs, proceed to the
Integral Time Adjustment
section.

Integral Time Adjustment
(See Figs. 17 & 18)

Adjusting the integral time dial
will not affect the controller set
point.  If the system response
toward the set point is too slow,
decrease the integral time
and/or increase the gain dial
settings by small increment
each.  If cycling occurs,
increase the integral time and/or
decrease the gain dial settings
by small increments each.
Using the appropriate pressure
checking method described
previously, note the exact set
point pressure value.  Upset the
system by rotating the set point
dial to force the controlled
device to an open position.  Wait
a sufficient period of time to
cause controlled variable
deviation, then return the set

point dial to its original position
producing the noted pressure.  If
the system response is not as
desired, adjust the integral time
and gain dials as prescribed
above to obtain the desired
system response.

System Startup Response

The following procedure is for
determining whether an
additional time delay is required
for proper system startup.

!

 WARNING:  Before

stopping a system, be sure
that a change in output
pressure will not upset the
system and cause
damage.

A.

Receiver-controllers
Using Fan “F” Connection

When the system becomes
stable, stop the system and
allow enough time to pass
until the controlled variable
deviates from the set point.
(Remember when the system
is off, the receiver-controller
returns to proportional-only
control.  This feature
eliminates integral windup
during off periods.)  Restart
the system and observe to
see how well it comes into
control.  When the system is
started and the fan signal is
increased to maximum
(20 PSIG), the proportional-
only controller returns to
proportional plus integral
control to cause the control
point to equal the set point.  If
the system response is not as
desired, determine whether
the cause is an improper time
delay (see T-5800-100 Time
Delay section) or an incorrect
integral time setting (repeat
Integral Time Adjustment
procedure above).

Содержание T-5800 Series

Страница 1: ...he T 5800 4 design Utilizing the fan F connection this feature allows the system to start up using proportional only control thus keeping the system from going out of control on startup as is inherent to PI automatic reset controllers when the system has been off for some time Refer to Product Data T 5800 for instrument specifications and additional details Installation The T 5800 Series Receiver ...

Страница 2: ... can be changed by interchanging the placement of the tube ends from one lower spigot to the other lower spigot see Figs 4 11 and 15 Each dual input T 5800 is furnished with a double 007 in orifice jumper and three yellow spigot caps see Fig 5 The orifice jumper provides a restricted source of supply to low volume non relay type transmitters For best results it is recommended that this jumper be u...

Страница 3: ...vice to the set point SP connection of the snap on input output connector A low volume restricted source of supply air less than 005 in orifice is automatically furnished therefore use 75 of the overall line length that is recommended for a 005 in orifice FC and PRV Test Points The FC and PRV test points and their associated adjustments are for FACTORY USE ONLY Supply Air Interruptions Both dual i...

Страница 4: ...4 T 5800 3 T 5800 4 Technical Bulletin Fig 8 X 200 173 Calibration Kit Fig 9 X 200 140 Test Probe with X 200 180 Series Transmission Gage and F 500 42 Adapter ...

Страница 5: ...ster manual or automatic to produce 9 PSIG 63 kPa using the appropriate method and gage as described above Turn the gain dial clockwise so that the word INCREASE imprinted on the dial is centered with the dial reference point Install the ratio selection jumper in the correct position see Fig 11 If the calculated ratio is less than or equal to 2 5 1 as is the case with the example where the calcula...

Страница 6: ...60 F or 5 4 to 9 PSIG per Fig 6 Note The master M INPUT is limited to not less than 2 PSIG nor greater than 17 PSIG Note the pressure readings at the master balance R reference corresponding to these minimum and maximum points If the minimum master balance R pressure noted above is greater than or equal to 5 PSIG and the maximum master balance R pressure is less than 19 PSIG with a 20 PSIG supply ...

Страница 7: ...which would produce the required 200 F 4 Apply the maximum master M input pressure value Example 60 F or 9 PSIG per Fig 6 5 Apply the corresponding controlled variable CV input pressure value Example 80 F or 5 4 PSIG per Fig 6 6 Set Point dial Adjustment Adjust the set point dial to cause the output pressure to be at the opposite end of the spring range of the controlled device Example Direct Acti...

Страница 8: ...8 T 5800 3 T 5800 4 Technical Bulletin ...

Страница 9: ...e working range internally to a more linear portion of the ratio circuit 3 Vary the master input from minimum to maximum over its working range Example 0 to 60 F or 5 4 to 9 PSIG per Fig 6 Note The master M INPUT is limited to not less than 2 PSIG nor greater than 17 PSIG Note the pressure readings at the master balance R reference corresponding to these minimum and maximum points If the minimum m...

Страница 10: ...no further adjustments will be required If the control point does not stabilize at the set point value or if excessive cycling occurs proceed to the Integral Time Adjustment section Integral Time Adjustment See Figs 17 18 Adjusting the integral time dial will not affect the controller set point If the system response toward the set point is too slow decrease the integral time and or increase the g...

Страница 11: ...the P PI jumper must be disconnected and left vented for a period of time equal to the integral time dial setting Start up the system and reconnect the P PI jumper when the system becomes stable T 5800 100 Time Delay When Fan F Connection is Used After system startup if the system response is too slow the integral control function will act on the signal before the proportional control function set...

Страница 12: ...12 T 5800 3 T 5800 4 Technical Bulletin Notes Controls Group 507 E Michigan Street P O Box 423 Printed in U S A Milwaukee WI 53202 ...

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