Honeywell T775abm Manual
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T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS 2162-0254—13 Fig. 46. Setup - Sensors - Sensor B - Throttling Range. 2.2.4.2. THROTTLING RANGE (Sensor B only) The throttling range for the modulating high or low limit positions the setpoint at the end of the throttling range. For example, with a high limit at Sensor B of 200°F and a throttling range of 10°F, the modulating output controlling Sensor A begins to throttle back at 190°F (88°C), and fully closes at 200°F (93°C). Conversely, the throttling range for the low limit begins above the setpoint in the same manner. 1.From the Limit menu, use the button to highlight THROT RNG. 2.Use the and buttons to increase/decrease the desired value for the Throttling Range. Default = 0 3.Press the button to accept the value and return to the Limit menu. 4.Press the button to exit the Limit menu. 5.Press thebutton to exit the Sensors menu and return to the Setup menu. Fig. 47. Setup - Outputs Menu. 2.3. Setting up the Outputs 1.From the Setup menu, use the and buttons to highlight OUTPUTS. 2.Press the button to display the Outputs menu. NOTE: The menus (e.g. the Outputs menu shown here) can display only those relays that are defined in Setup (see “2.3.2. NBR OF RELAYS” on page 24). For example, if you configure only two relays, then only two relays display on the appropriate menus. The following procedures set up each modulating output and relay output. Fig. 48. Setup - Outputs - Modulating Output Menu. 2.3.1. Setting up the Modulating Outputs 1.From the Output menu, use the and but- tons to highlight the desired modulating output (MOD 1 or MOD 2). 2.Press the button to display the selected MOD menu. NOTE: Modulating outputs are not available on the T775A and T775B controller models. If you are setting up one of these controllers, skip to “2.3.2. NBR OF RELAYS” on page 24. Use the remaining procedures, beginning with “2.3.1.1. TYPE (of output signal)” on page 22, to set up each modulating output. If you have two modulating outputs, repeat these procedures for each modulating output. SETUP SENSORS SENSOR B UNITS CALIBRATE LABEL LIMIT HI LIMIT THROT RNG EXIT SETUP SENSORS SENSOR B ENTER VALUE FOR SENSOR B THROTLING RANGE SETUP SENSORS SENSOR B THROT RNG 10F o M24510 SETUP OUTPUTSSETUP OUTPUTS MOD 1 MOD 2 # RELAYS OPTIONS RELAY 1 RELAY 2 RELAY 3 RELAY 4 EXIT M24511 SETUP OUTPUTS MOD 1SETUP OUTPUTS MOD 1 TYPE MIN OUT % INTEGRAL DERIVATIV SCHEDULE HIDE EXIT M24512A
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS 62-0254—1322 Fig. 49. Setup - Outputs - Mod Out - Type. 2.3.1.1. TYPE (of output signal) 1.From the Mod menu, use the and buttons to highlight TYPE. 2.Press the button to display the Type selections. 3.Use the and buttons to highlight the desired output type. Default: 4-20 mA 4.Press the button to accept the selected type and return to the Mod menu. Fig. 50. Setup - Outputs - Mod Out - Minimum Output Percentage . 2.3.1.2. MIN OUT % The minimum output % prevents the output from dropping below the value entered. This value can be useful to maintain minimum damper position. Using the time clock or digital input to disable the output forces the output to 0%. 1.From the Mod menu, use the and buttons to highlight MIN OUT %. 2.Press the button to display the Min Out %. 3.Use the and buttons to increase/decrease the desired value from 0% to 100% in 1% incre- ments. Default: 0% Range: 0 to 100% 4.Press the button to accept the percentage and return to the Mod menu. Fig. 51. Setup - Outputs - Mod Out - Integral. 2.3.1.3. INTEGRAL 1.From the Mod menu, use the and buttons to highlight INTEGRAL. 2.Press the button to display the Integral seconds. 3.Use the and buttons to increase/decrease the value from 0 to 3,600 in 10 second increments. Default: 400 seconds Range: 0 to 3,600 seconds 4.Press the button to accept the seconds and return to the Mod menu. NOTES: 1. The Integral time is factory set for 400 seconds. This is a good middle range and should satisfy many applications. The integral time can be increased for applications where sensed response is slow, and can be decreased for applications where sensed response is fast (e.g. discharge air control). 2. As a starting point, an optimal integral time for discharge air typically ranges from 12 to 200 seconds. An optimal integral time for room control typically ranges from 60 to 2,500 seconds. The purpose of integral action is to reduce or eliminate the offset from setpoint during steady state control that is often seen in proportional only control.3. Keep in mind that control is most sensitive to throttling range. Adjust the throttling range first before any adjustment to integral time. Adjust throttling range to be as wide as possible to start since this will provide the most stable control. Remember that the integral will eliminate the steady state error so you do not need to have a small throttling range to have accurate control. (Integral action allows for controlling to a setpoint even with a wide throttling range). SETUP OUTPUTS MOD 1 TYPESETUP OUTPUTS MOD 1 TYPE SELECT TYPE FOR MOD 1 4 - 20 mA 0-10 V 2-10 V SERIES 90 M24513 SETUP OUTPUTS MOD 1 MIN OUT % ENTER MINIMUM PERCENT FOR MOD 1 SETUP OUTPUTS MOD 1 MIN OUT % 0% M24514 SETUP OUTPUTS MOD 1 INTEGRAL ENTER INTEGRAL TIME FOR MOD 1 SETUP OUTPUTS MOD 1 INTEGRAL 400SEC M24515
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS 2362-0254—13 Fig. 52. Setup - Outputs - Mod Out - Derivative. 2.3.1.4. DERIVATIVE The Derivative default value is factory set to zero (no derivative control). It is strongly recommended that the derivative remain at zero (0) unless you have a very good reason to adjust it. Derivative control is not needed in the vast majority of HVAC applications. 1.From the Mod menu, use the and buttons to highlight DERIVATIV. 2.Press the button to display the Derivative seconds. 3.Use the and buttons to increase/decrease the value. Default: 0 (zero) Range: 0 to 3,600 seconds 4.Press the button to accept the seconds and return to the Mod menu. Fig. 53. Setup - Outputs - Mod Out - Schedule. 2.3.1.5. SCHEDULE The Schedule option displays only if the USE SCHED parameter is set to Yes (See “2.3.3.1. USE SCHED” on page 25). 1.From the Mod menu, use the and buttons to highlight SCHEDULE. 2.Use the and buttons to highlight YES or NO. Default: YES 3.Press the button to accept the selection and return to the Mod menu. Each output can be set up to follow or ignore the built in scheduler. To disable the scheduler for all outputs, see “2.3.3.1. USE SCHED” on page 25. Fig. 54. Setup - Outputs - Mod 1/2 - Hide. 2.3.1.6. HIDE The Hide option is used to prevent the MOD 1 and MOD 2 outputs from displaying on the Home screen. 1.From the Mod menu, use the and buttons to highlight HIDE. 2.Use the and buttons to highlight YES or NO. Default: YES 3.Press the button to accept the selection and return to the Mod menu. NOTE: The MOD1 and MOD2 outputs are still active even when hidden from the Home screen. SETUP OUTPUTS MOD 1 DERIVATIV ENTER DERIVATIVE TIME FOR MOD 1 SETUP OUTPUTS MOD 1 DERIVATIV 0SEC M24516 SETUP OUTPUTS MOD 1 SCHEDULESETUP OUTPUTS MOD 1 SCHEDULE USE SCHEDULE FOR OUTPUTS YES NO M24517 SETUP OUTPUTS MOD 1 HIDESETUP OUTPUTS MOD 1 HIDE HIDE MOD 1 ON HOME SCREEN YES NO M28656
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS 62-0254—1324 Fig. 55. Setup - Outputs - Mod Out - Exit. 2.3.1.7. EXIT Press thebutton (or highlight EXIT and press the button) to exit the Mod menu and return to the Outputs menu. If you have a second modulating output to configure, go to “2.3.1. Setting up the Modulating Outputs” on page 21. If you are finished setting up the modulating outputs, continue with “2.3.2. NBR OF RELAYS”. Fig. 56. Setup - Outputs - Number of Relays. 2.3.2. NBR OF RELAYS 1.From the Outputs menu, use the and but- tons to highlight # RELAYS. 2.Press the button to display the number of relays. 3.Use the and buttons to display the number from 1 to 4 depending on the model. (See notes below.) 4.Press the button to accept the value and display the Outputs menu. NOTES: 1. The T775A/B/M models have the following outputs available: T775A20191 relay output T775B2016up to 2 relay outputs T775B2024up to 4 relay outputs T775B2032up to 2 relay outputs T775B2040up to 4 relay outputs T775M2006no relay outputs T775M2014up to 4 relay outputs 2. The number of relay outputs entered here determines how many relays display on the home screen. Fig. 57. Setup - Outputs - Options Menu. 2.3.3. OPTIONS 1.From the Outputs menu, use the and but- tons to highlight OPTIONS. 2.Press the button to display the Options menu. SETUP OUTPUTS MOD 1 TYPE MIN OUT % INTEGRAL DERIVATIV SCHEDULE EXIT M24518 SETUP OUTPUTS # RELAYS ENTER NUMBER OF RELAYS SETUP OUTPUTS # RELAYS 4 M24519 SETUP OUTPUTS OPTIONSSETUP OUTPUTS OPTIONS USE SCHED MIN OFF MIN ON DI OPTS SHOW RT SYNC EXIT M24520A
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS 2562-0254—13 Fig. 58. Setup - Outputs - Options - Schedule. 2.3.3.1. USE SCHED 1.Press the button to display the schedule selections. 2.Use the and buttons to highlight YES or NO. Default: NO 3.Press the button to accept the value and display the MIN OFF option. Selecting NO disables scheduling for all outputs. Selecting YES enables scheduling for all outputs. When YES is selected, all individual outputs default to follow the schedule. However, each individual output can be removed from scheduling as desired. With Scheduling enabled, when you return to Program mode, the new option for Scheduling displays. You can press the home key and then the menu key to view the Schedule options in the menu. See “2.3.1.5. SCHEDULE” on page 23. Fig. 59. Setup - Outputs - Options - Min Off/On Time. 2.3.3.2. MIN OFF or MIN ON This is the minimum number of seconds of “off time” or “on time” for all relays. 1.Press the button to display the Min Off/On value. 2.Use the and buttons to increase/decrease the desired number of seconds from 0 to 990 sec- onds in 10 second increments. Default: 0 (zero) Range: 0 to 990 seconds 3.Press the button to accept the seconds and display the DI OPTIONS. NOTES: 1. The minimum OFF or ON time applies to all relay outputs. 2. When minimum OFF or ON time is active, relays waiting to be energized display a flashing square underneath the relay number on the home screen. 3. If the minimum OFF time is not equal to zero (0), the minimum OFF time activates at power-up. To manually override, press the button at any time. SETUP OUTPUTS OPTIONS USE SCHEDSETUP OUTPUTS OPTIONS USE SCHED USE SCHEDULE FOR OUTPUTS YES NO M24521 SETUP OUTPUTS OPTIONS ENTER MINIMUM OFF TIME FOR RELAYS SETUP OUTPUTS OPTIONS MIN OFF 0SEC M24522A OR MIN ON ENTER MINIMUM ON TIME FOR RELAYS SETUP OUTPUTS OPTIONS MIN ON 0SEC MIN OFF
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS 62-0254—1326 Fig. 60. Setup - Outputs - Options - DI Options. 2.3.3.3. DI OPTIONS (digital input options) The DI Option you select applies to all outputs. This option overrides any Setpoint/Setback values entered in the Schedule. 1.Press the button to display the DI Option selections. 2.Use the and buttons to highlight DISABLE, SETBACK, or IGNORE. Default: DISABLE 3.Press the button to accept the value and display the SHOW RT option. When the digital input (DI) closes, all outputs follow the DI option value (Disable, Setback, or Ignore): •DISABLE disables the outputs; relays return to de- energized state and Mod outputs return to 0% output. •SETPOINT forces the control to the setpoint temperature. •SETBACK enables a setback temperature value to be programmed for each output and forces the control to the setback temperature. — To program the Setback temperature, see Fig. 34 on page 16. •ENABLE energizes all relays and MOD outputs to 100%. Use this option carefully. •IGNORE causes the digital input to have no effect on the Relay or Mod outputs. Fig. 61. Setup - Outputs - Options - Show Runtime. 2.3.3.4. SHOW RT (show run time hours) 1.Press the button to display the Show RT values. 2.Use the and buttons to select YES or NO. Default: YES 3.Press the button to accept the value and return to the Options menu. Selecting YES shows the RT (run time) hours for each relay on the home screen displays. NOTE: Run times can be reset to zero for each individual relay. You must do this for each relay that you want to reset to zero. See “2.3.4.3. RESET RT (run time hours)” on page 29. Fig. 62. Setup - Outputs - Options - Sync. 2.3.3.5. SYNC (synchronize setpoint changes) 1.Press the button to display the Sync values. 2.Use the and buttons to select YES or NO. Default: NO 3.Press the button to accept the value and return to the Options menu. Depending on the model, selecting YES causes all setpoints for all relays and MODs to sync to any change to: • Relay 1 for models without MOD outputs • MOD1 for models with MOD outputs For example, assume the MOD1 setpoint is 110°F, MOD2 is 115°F, and Relay 1 is 120°F. With SYNC=YES, when the MOD1 setpoint is adjusted to 112°F (increase 2°F), then MOD2 and all other relay setpoints increase by 2°F. Thus the MOD2 setpoint is now 117°F and the relay 1 setpoint is 122°F. SETUP OUTPUTS OPTIONS DI OPTSSETUP OUTPUTS OPTIONS DI OPTS SELECT DI OPTIONS FOR OUTPUTS DISABLE SETPOINT SETBACK ENABLE IGNORE M24523A SETUP OUTPUTS OPTIONS SHOW RTSETUP OUTPUTS OPTIONS SHOW RT USE RUNTIME FOR RELAYS YES NO M24524 SETUP OUTPUTS OPTIONS SYNCSETUP OUTPUTS OPTIONS SYNC ALL SETPTS CHANGE NO YES M28657
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS 2762-0254—13 Fig. 63. Setup - Outputs - Options - Exit. 2.3.3.6. Exit Options Setup Press the button (or highlight EXIT and press the button) to exit and return to the Outputs menu. Continue with “2.3.4. Setting up the Relays” Fig. 64. Setup - Outputs - Relay Menu. 2.3.4. Setting up the Relays 1.From the Outputs menu, use the and but- tons to highlight the desired relay (1-4 depending on model). 2.Press the button to display the selected relay menu. The TYPE selection shown in Fig. 64 displays only for Relay 1 and Relay 3. Continue with the remainder of section 3.4 to setup the relay outputs. Fig. 65. Setup - Outputs - Relay - Type. 2.3.4.1. TYPE (standard or floating) The Floating option is only available on the T775B2016, T775B2024, T775B2032, and T775B2040 models. For these models, this selection displays only for Relay 1 and/or Relay 3. 1.Press the button to display the Type values. 2.Use the and buttons to select STANDARD OR FLOATING. Default: STANDARD (not floating) 3.Press the button to accept the value and return to the Relay menu. If you select FLOATING, the relays are paired (1-2 or 3-4) and are setup together. Continue with “2.3.4.1.1. Floating Relay Menu”. If you select STANDARD, go to “2.3.4.2. SCHEDULE” on page 29. SETUP OUTPUTS OPTIONS USE SCHED MIN OFF DI OPTION SHOW RT EXIT M24525 SETUP OUTPUTS RELAY 1SETUP OUTPUTS RELAY 1 TYPE SCHEDULE RESET RESET RT EXIT M24526 SETUP OUTPUTS RELAY 1 TYPESETUP OUTPUTS RELAY 1 TYPE SELECT TYPE FOR RELAY 1 STANDARD FLOATING M24527
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS 62-0254—1328 Fig. 66. Setup - Outputs - Floating Relay - Menu. 2.3.4.1.1. Floating Relay Menu The Floating option is only available on the T775B2016, T775B2024, T775B2032, and T775B2040 models. When Relay 1 or Relay 3 is setup as floating, relays are paired and the Float 1 or Float 2 menu displays with the selections shown in Fig. 66. Fig. 67. Setup - Outputs - Floating Relay - Actuator. 2.3.4.1.1.1. ACTUATOR (floating relay only) The Actuator option displays only on the T775B2016, T775B2024, T775B2032, and T775B2040 models when the Type option = Floating. 1.From the menu, use the and buttons to highlight ACTUATOR. 2.Press the button to display the actuator value. 3.Use the and buttons to increase/decrease the desired number of seconds. Default: 90 seconds Range: 0 to 3,600 seconds) 4.Press the button to accept the value and display the INTEGRAL option. The actuator run time is defined as the time needed to move the actuator from the fully closed to fully open position and visa versa. Fig. 68. Setup - Outputs - Floating Relay - Integral. 2.3.4.1.1.2. INTEGRAL (modulating/floating relay only) The Actuator option displays only on the T775B2016, T775B2024, T775B2032, and T775B2040 models when the Type option = Floating. 1.From the menu, use the and buttons to highlight INTEGRAL. 2.Press the button to display the actuator value. 3.Use the and buttons to increase/decrease the desired number of seconds. Default: 400 seconds Range: 0 to 3,600 seconds) 4.Press the button to accept the value and display the DERIVATIV option. See Integral NOTES on page 22 for additional information about setting the Integral time. SETUP OUTPUTS FLOAT 1SETUP OUTPUTS FLOAT 1 TYPE ACTUATOR INTEGRAL DERIVATIV SCHEDULE RESET EXIT M24528 SETUP OUTPUTS FLOAT 1 ACTUATOR ENTER ACTUATOR TIMING FOR FLOAT 1 SETUP OUTPUTS FLOAT 1 ACTUATOR 90SEC M24529 SETUP OUTPUTS FLOAT 1 INTEGRAL ENTER INTEGRAL TIME FOR FLOAT 1 SETUP OUTPUTS FLOAT 1 INTEGRAL 400SEC M24530
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS 2962-0254—13 Fig. 69. Setup - Outputs - Floating Relay - Derivative. 2.3.4.1.1.3. DERIVATIVE (modulating/floating relay only) The Derivative option displays only on the T775B2016, T775B2024, T775B2032, and T775B2040 models when the Type option = Floating. 1.From the menu, use the and buttons to highlight DERIVATIV. 2.Press the button to display the actuator value. 3.Use the and buttons to increase/decrease the desired number of seconds. Default: 0 seconds Range: 0 to 3,600 seconds) 4.Press the button to accept the value and display the SCHEDULE option. Continue with “2.3.4.2. SCHEDULE” for the remaining relay selections. Fig. 70. Setup - Outputs - Relay - Schedule. 2.3.4.2. SCHEDULE This selection displays only if “Use Sched = YES” is selected during the Output Options setup (see “2.3.3.1. USE SCHED” on page 25). When selected, individual outputs default to follow the schedule. 1.Press the button to display the Schedule values. 2.Use the and buttons to select YES or NO. Default: YES 3.Press the button to accept the value and return to the Relay menu. An individual output can be selected to be controlled or not controlled by the schedule. If NO is selected, the Setback selection does not appear in the Program menu for this output. Fig. 71. Setup - Outputs - Relay - Reset Runtime. 2.3.4.3. RESET RT (run time hours) This selection displays only if “Show RT = YES” is selected during Output Options setup (see “2.3.3.4. SHOW RT (show run time hours)” on page 26). 1.From the Relay menu, press the button to dis- play the Reset RT values. 2.Use the and buttons to select YES or NO. Default: NO 3.Press the button to accept the value and return to the Relay menu. Selecting YES immediately resets the output run time hours to zero for this output. When you subsequently return to this screen, the RESET RT defaults to NO. NOTE: Run times can be reset to zero for each individual relay. You must do this for each relay that you want to reset to zero. SETUP OUTPUTS FLOAT 1 DERIVATIV ENTER DERIVATIVE TIME FOR FLOAT 1 SETUP OUTPUTS FLOAT 1 DERIVATIV 0SEC M24531 SETUP OUTPUTS RELAY 1 SCHEDULESETUP OUTPUTS RELAY 1 SCHEDULE USE SCHEDULE FOR OUTPUTS YES NO M24532 SETUP OUTPUTS RELAY 1 RESET RTSETUP OUTPUTS RELAY 1 RESET RT RESET RUN TIME FOR RELAY 1 YES NO M24533
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS 62-0254—1330 Fig. 72. Setup - Outputs - Relay - Exit. 2.4. EXIT Setup Mode Press the button to exit the selected relay set up and return to the Outputs menu. To setup the next relay output go to “2.3.4. Setting up the Relays” on page 27. If you are finished setting up the relay outputs, press the HOME button to exit Setup mode and return to the home screen display. This completes the Setup procedure. 3. SCHEDULING Scheduling provides the ability to set daily temperature settings for up to two events per day. Typically, these are the daytime (setpoint) and the nighttime (setback) settings. IMPORTANT To enable Scheduling, you must first enter Setup mode (press and hold the MENU button for 5 seconds), select OUTPUTS, select OPTIONS, select USE SCHED, and then select YES. (See “2.3.3.1. USE SCHED” on page 25). IMPORTANT To properly account for Daylight Saving time, be sure to set the Date before setting the Time. See “3.2.2. SET DATE” on page 31. NOTE: Each output is independently configurable to follow the schedule or not. For modulating outputs, See “2.3.1.5. SCHEDULE” on page 23. For relay outputs, see “2.3.4.2. SCHEDULE” on page 29. NOTE: The controller interface is intuitive. You may find that you do not need the following scheduling instructions. You may want to use this procedure simply as a reference to locate the particular option or parameter of interest.NOTES: 1. If you press the HOME button or there is no keypad activity for four minutes, you exit Scheduling mode and return to the home screen. 2. If you press the MENU button, you exit Scheduling mode and return to the menu. To create or change a schedule, you use the — • Left arrow button ( ) to scroll backward through the Schedule menus • Right arrow button ( ) to select the highlighted menu item and display its content • Up and Down arrow buttons ( and ) to scroll up and down through a list of items or to increase or decrease the value of a displayed schedule parameter Creating a Schedule To create a schedule, perform the following in the order listed: 1.Enable Scheduling in Setup mode - See “2.3.3.1. USE SCHED” on page 25 2.Enter Schedule mode — See “3.1. Entering Schedule Mode” 3.Set the Schedule Options — See “3.2. OPTIONS” 4.Set Individual Schedules — begin with “3.3. Setting Individual Schedules” on page 32 5.Exit Schedule Mode — See “3.4. Exiting Scheduling Mode” on page 33 Fig. 73. Schedule - Menu. 3.1. Entering Schedule Mode Press the MENU button, then select SCHEDULE and press the button to view the Schedule menu. SETUP OUTPUTS RELAY 1 RESET SCHEDULE RESET RT EXIT M24534 MENU SCHEDULEMENU SCHEDULE OPTIONS MON-FRI SAT-SUN MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY SUNDAY EXIT M24536