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T775M2022

Honeywell T775B2040, T775A2009, T775B2032, T775M2006, T775M2014 Installation Instructions Manual

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Page 1
INSTALLATION INSTRUCTIONS
62-0254-13
T775A/B/M Series 2000 Electronic Stand-Alone Controllers
PRODUCT DESCRIPTION
Five models have analog (modulating) outputs for actuator and motor control, and NEMA-4 weatherproof enclosures are available for wet environments.
IMPORTANT
Each T775A/B/M controller is an operating control, not a limit or safety control. If used in applications requiring safety or limit controls, a separate safety or limit control device is required.
Table 1. T775A/B/M Controller Configurations.
Controller
Model
a
a
All models include a digital input for use with the disable or setback option.
Description Replaces
SPDT Relay
Outputs
Analog
(Mod)
Outputs
b
b
The modulating (analog) outputs are 4-20 mA, 0-10 Vdc, 2-10 Vdc, or Series 90 selectable.
Floating
Outputs
c
c
Each floating output eliminates two SPDT relays.
Sensor
Inputs
Nbr of
Sensors
Included Enclosure
T775A2009 Standard T775A1001 1 None None 1 1 NEMA 1
T775B2016 Standard N/A 2 None 1 2 1 NEMA 4X
T775B2024 Standard T775C1009 T775D1008 4 None 2 2 1 NEMA 4X
T775B2032 Standard T775A1019 T775B1000 2 None 1 2 1 NEMA 1
T775B2040 Standard T775A1027 T775A1035
T775B1018 T775B1026 T775B1042
4None2 21 NEMA 1
T775M2006 Modulating N/A None 2 N/A 2 1 NEMA 1
T775M2014 Modulating T775G1005 T775G1013
T775G1021 T775G1039
42 N/A
2
d
d
These models can support a high/low modulating limit at Sensor B for temperature control at Sensor A.
1 NEMA 4X
T775M2022 Modulating N/A 2 2 N/A
2
d
1 NEMA 4X
T775M2030 Modulating T775E1114 T775F1022
T775F1055 T775F1089
42 N/A
2
d
1 NEMA 1
T775M2048 Modulating T775E1015 T775E1023
T775E1056 T775E1064 T775E1098
22 N/A
2
d
1 NEMA 1
Page 2
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
62-0254—13 2
Temperature Sensors
a
The controller accepts 1,097 Ohms PTC at 77°F (25°C):
• 50021579-001 – Standard sensor (included with all models except NEMA 4X models)
• T775-SENS-STRAP– Strap on sensor with wiring box
• T775-SENS-WR – Water resistant with 5 foot leads (included with NEMA 4X models)
• T775-SENS-WT – Watertight with 6 foot lead
• T775-SENS-OAT – Outdoor air temperature sensor
• C7031B2005 – 6 inch duct mount with wiring box
• C7031D2003 – 5 inch immersion sensor with wiring box (use immersion well; P/N 50001774-001)
• C7031J2009 – 12 foot duct averaging sensor with wiring box
• C7046D1008 – 8 inch duct probe with mounting flange
• C7100D1001 – 12 inch fast response, duct averaging sensor with flange
• C7130B1009 – Room mount sensor
Accessories
• 107324A – Bulb Holder, duct insertion
• 107408 – Heat Conductive Compound, 4 ounce
• 50001774-001 – Immersion Well, stainless steel 304, 1/2 in. threading.
Product Changes
Below are the changes to T775A/B/M models starting with Series 3 (March 2009). Series 3 can be identified by the sideways 3 after the part number on the device label.
1. Modulating high and low limit now both function in either the heat or the cool mode.
2. MIN ON added.
3. SYNC added.
4. Differential and throttling range increased to 300°F.
5. Setpoint and Enable options added to the DI
options.
6. HIDE option added to MOD1 and MOD2 (to hide them on the home screen).
Controller Dimensions
Fig. 1. T775A/B/M Dimensions in inches (mm).
a
See form 62-0265 - Temperature Sensors for the T775
Series 2000 Stand-alone Controller
4 13/32 (112.1)
1/2 (12.4)
3 31/32 (101)
7 23/32
(196)
8 5/32 (207.1)
2 15/16 (74)
7/8 (22.5)
1 (25.5)
4 1/16 (103.4)
4 1/16 (103.4)
1/64 (3.8)
2 11/16 (68.1)
7/8 (22.5)
2 13/16 (71.8)
7/8 (22.5)
1 (25.5)
7/8 (22.5)
M24279
TOP
BOTTOM
LEFT RIGHT
FRONT VIEW
Page 3
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
3 62-0254—13
BEFORE INSTALLATION
Review the “SPECIFICATIONS” on page 35 before installing the controller.
When Installing This Product
1. Read these instructions carefully. Failure to follow
them could damage the product or cause a hazardous condition.
2. Check ratings given in instructions and on the product to ensure the product is suitable for your application.
3. Installer must be a trained, experienced service technician.
4. After installation is complete, check out product operation as provided in these instructions.
INSTALLATION AND SETUP
The following installation procedures are typically performed in the order listed:
1. Mounting — See “MOUNTING” below.
2. Wiring — See “WIRING” on this page.
3. Checkout — See page 11.
4. Programming — See page 14.
5. Scheduling (optional) — See page 30.
Additional topics are:
• Temperature sensor calibration begins on page 11.
• Interface overview begins on page 12.
• Setup (for advanced options) begins on page 17.
• Summary menu begins on page 34.
• Troubleshooting begins on page 34.
MOUNTING
This section describes the mounting procedures for the controller and temperature sensor(s).
Controller Mounting
IMPORTANT
Avoid mounting in areas where acid fumes or other deteriorating vapors can attack the metal parts of the controller circuit board, or in areas where escaping gas or other explosive vapors are present.
IMPORTANT
The controller must be mounted in a position that allows clearance for wiring, servicing, and removal.
Use a screwdriver to pry out only the knockouts that you will use.
If mounting on DIN rail, be sure to remove the knockouts before mounting. See “Controller Wiring” on page 5 and Fig. 7 on page 6 for recommended knockout usage and locations. If you do not use an opened knockout be sure to cover it.
Mount the controller on any convenient interior location using the four mounting holes provided on the back of the enclosure using #6 or #8 screws (screws are not provided and must be obtained separately). Use controller dimensions in Fig. 1 on page 2 as a guide.
The controller may be mounted in any orientation. However, mounting in the orientation shown in Fig. 1 on page 2 permits proper viewing of the LCD display and use of the keypad.
NEMA 4 Enclosure Mounting
For models with NEMA 4 enclosures, ensure that waterproof wire/conduit fittings are used at the knockouts for all wiring attachments. Refer to Fig. 7 on page 6 for knockout locations.
IMPORTANT
For NEMA 4 enclosures, be sure to cover and seal all unused open knockouts.
Temperature Sensor(s) Mounting and Location
Temperature sensors may be located up to 1,000 feet (304 m) from the T775A/B/M controller. Refer to Table 3 on page 11 for calibration guidelines.
The sensors may be mounted on a wall or panel for sensing space temperature, strapped to a pipe or inserted in an immersion well (see Fig. 2) for hot or cold water sensing, or taped to a standard cap or bulb holder for duct air sensing. To prevent moisture or condensation entering the sensor through the lead wire holes, mount the sensor with the lead wires exiting the bottom of the sensor.
NOTES:
1. The included sensor is not designed for very wet applications. For immersion applications, an immersion well is used.
2. Heat conductive compound must be used in immersion wells.
3. Refer to the list of temperature sensors on page 2 for this type of installation
.
Fig. 2. Sensor Inserted in Immersion Well.
NOTE: Multiple sensors may be parallel-series wired
to sense average temperatures in large spaces. Refer to Fig. 3 on page 4.
WIRING
All wiring must comply with applicable electrical codes and ordinances, or as specified on installation wiring diagrams. Controller wiring is terminated to the screw terminal blocks located inside the device.
The remainder of this section describes the temperature sensor wiring and the T775A/B/M controller wiring.
SENSOR
PLACED IN WELL
IMMERSION WELL
1/2 NPT
USE HEAT
CONDUCTIVE
COMPOUND
M24470
Page 4
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
62-0254—13 4
Wiring Connections Access
To access the wiring connections, remove the two screws on the left side of the enclosure and gently swing open the top. Be careful to not stress the ribbon cables that connect the keypad and LCD display to the controller circuit board.
Temperature Sensor Wiring
CAUTION
Electrical Shock Hazard. Can short equipment circuitry.
Make sure that metal tube of sensor does not short against T terminals in wall-mounted case.
IMPORTANT
Poor wiring practices can cause erratic readings from the sensor. Avoid the following to ensure proper operation:
• Do not route the temperature sensor wiring with building power wiring.
• Do not locate the temperature sensor wiring next to control contactors.
• Do not locate the temperature sensor wiring near electrical motors.
• Do not locate the temperature sensor wiring near welding equipment.
• Make sure good mechanical connections are made to both the sensor and the controller.
• Do not mount the sensor with the lead wire end pointing up in an area where condensation can occur.
If any of the above conditions cannot be avoided, use shielded cable.
NOTE: Each T775 controller must be wired to its own
sensor(s). However, a benefit of the T775 controller’s accuracy is that there is no more than a 2° F (-7° C) differential between any two T775 controllers.
Multiple Parallel Sensors
Multiple sensors can be parallel-series wired to sense average temperatures in large spaces. To maintain control accuracy, the number of sensors to be parallel-series wired must be of the n
2
power (for example, 4, 9, 16, etc.). Refer to Fig. 3 .
Fig. 3. Parallel-Series Wiring of Sensors.
Temperature Sensor Wire Type and Size
Temperature sensors use standard AWG 18/2 unshielded wire. For cable runs greater than 25 feet or where electrical interference may be a problem, shielded cable is recommended (See Fig. 4).
Refer to “Temperature Sensor Calibration” on page 11 for wire size selection where cable runs are longer than 25 feet.
Fig. 4. Sensor Wiring — Showing Shielded Cable Connection to Sensor A.
TO T775 CONNECTIONS (SENSOR A) OR (SENSOR B).
SENSORS
M24471
M24472
SHIELDED CABLE
SHIELDED CABLE
SENSOR
SENSOR A AND SENSOR B TERMINAL WIRING IS POLARITY INSENSITIVE.
1
NOTE: SHIELDED CABLE MUST BE CONNECTED TO AN EARTH GROUND. HOWEVER, DO NOT GROUND SHIELDED CABLE AT SENSOR END.
NOTE: TO MINIMIZE NOISE PICKUP, MAKE SENSOR CONNECTION FROM SHIELDED CABLE AS CLOSE AS POSSIBLE TO SENSOR BODY.
T T
T T
SENSOR A
SENSOR B
1
Page 5
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
5 62-0254—13
Controller Wiring
WARNING
Electrical Shock Hazard. Can cause severe injury, death or property damage.
Disconnect power supply before beginning wiring, or making wiring connections, to prevent electrical shock or equipment damage.
CAUTION
Do not use 24 Vac power to power any external loads if 120 Vac or 240 Vac is used to power the T775A/B/M controller.
CAUTION
A separate earth ground is required.
Equipment damage can result if the earth ground is not connected. See Fig. 5 and Table 2 on page 6.
CAUTION
Equipment Damage Hazard. Electrostatic discharge can short equipment circuitry.
Ensure that you are properly grounded before handling the unit
.
Fig. 5. Earth Ground.
IMPORTANT
Poor wiring practices can cause erratic readings from the sensor. To ensure proper operation, ensure that good mechanical connections are made to both the sensor and the controller.
IMPORTANT
When wiring the input power, only one source of power can be applied to the T775A/B/M controller (24 Vac or 120 Vac or 240 Vac).
See Fig. 7 on page 6 for locating the appropriate power input, remote sensors input, low voltage, contact closure, and load output terminals.
Access to the terminals can be gained through standard conduit knockouts (A through E in Fig. 7 on page 6) located around the perimeter of the enclosure:
• Knockouts A and B should be used only for sensor and
low-voltage wiring.
• Knockouts C, D, and E can be used to gain access to
the load relay output terminals and 120/240 Vac power wiring.
Controller Wiring Method
Wire the sensors and outputs, then wire the power connection.
Each terminal can accommodate the following gauges of wire:
• Single wire – from 14 AWG to 22 AWG solid or
stranded
• Multiple wires – up to two 22 AWG stranded
For 24, 120, or 240 Vac power connections:
• Single wire – from 14 to 18 AWG solid or stranded
Prepare wiring for the terminal blocks, as follows:
1. Strip 1/2 in. (13 mm) insulation from the conductor.
2. Cut a single wire to 3/16 in. (5 mm). Insert the wire
in the required terminal location and tighten the screw.
3. If two or more wires are being inserted into one terminal location, twist the wires together a minimum of three turns before inserting them to ensure proper electrical contact.
4. Cut the twisted end of the wires to 3/16 in. (5 mm) before inserting them into the terminal and tightening the screw.
5. Pull on each wire in all terminals to check for good mechanical connection
.
Fig. 6. Attaching Two or More Wires at Terminal
Blocks.
C
+
W
1
2
M24296
NO HIGH VOLTAGE. CLASS 2 WIRING ONLY.
EARTH GROUND TERMINAL MUST BE CONNECTED TO CONDUIT CLAMP LOCALLY.
1
2
1/2 (13)
1. STRIP 1/2 IN. (13 MM)
FROM WIRES TO BE ATTACHED AT ONE TERMINAL.
2. TWIST WIRES
TOGETHER WITH PLIERS (A MINIMUM OF THREE TURNS).
3. CUT TWISTED END OF WIRES
TO 3/16 IN. (5 MM) BEFORE INSERTING INTO TERMINAL AND TIGHTENING SCREW. THEN PULL ON EACH WIRE IN ALL TERMINALS TO CHECK FOR GOOD MECHANICAL CONNECTION.
M24473
Page 6
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
62-0254—13 6
Controller Wiring Details
The wiring connection terminals are shown in Fig. 7 and are described in Table 2.
See Fig. 8 – 22 beginning on page 6 for typical T775A/B/ M wiring applications.
Fig. 7. T775A/B/M Terminal and Feature Locations.
NOTE: Refer to Table 1 on page 1 for the specific
configuration of sensors and outputs supported by the model you are installing.
NOTE: For NEMA 4 enclosures, use waterproof fit-
tings for wiring/conduit connections at knockouts.
WIRING APPLICATIONS (EXAMPLES)
Fig. 8 – 22 illustrate typical controller wiring for various applications.
NOTE: The electronic Series 90 output provided with
modulating T775 models can not drive elec­tro-mechanical slidewire devices like older Series 3 modulating meters (prior to Series
6), V9055s, and S984s.
Fig. 8. Wiring for Two-Stage Control – 24 Vac Input
and 24 Vac Load.
Table 2. Description of Wiring
Terminal Connections.
Connection Terminal Label Description
Sensors
Sensor A T T Temperature Sensor;
polarity insensitive
Sensor B
Outputs
Relay 1 Relay 2 Relay 3 Relay 4
NO COM NC
120-240 Vac Relay Output
Mod 1 + - (Vdc or mA)
W R B (Series 90)
a
Modulating Output
Mod 2
M24474
C
NO
NC
C
NO
NC
C
NC
NO
C
NC
NO
T T
T T
B R
W
+
–
+
–
B R W
+
–
SENSOR A
SENSOR B
MOD 2
MOD 1
KNOCKOUT A
DIGITAL
INPUT
POWER 120/240 VAC
OUTPUT RELAY 2
KNOCKOUT D
POWER
24 VAC
OUTPUT RELAY 1
KNOCKOUT C
KNOCKOUT E
SENSORS A AND B USE THE TWO TT CONNECTIONS AND ARE POLARITY INSENSITIVE.
FOR MOD 1 AND MOD 2 CURRENT (mA) OR VOLTAGE (VDC) OUTPUT, USE SIGNAL (+) & COMMON (-). FOR MOD 1 AND MOD 2 SERIES 90 OUTPUT, USE W, R, & B.
A SEPARATE EARTH GROUND IS REQUIRED FOR ANY POWER SOURCE (24, 120, OR 240 VAC).
1
2
1
2
OUTPUT RELAY 3
KNOCKOUT B
OUTPUT RELAY 4
3
3
C
+
120
COM
240
Input
DI + - Digital Input (dry
contact)
24 Vac Power
24V + + 24 Vac Hot
Common C 24 Vac Common
Ground
Earth Ground
b
120 or 240 Vac Power
120 Vac 120 120 Vac Power
Common COM Common
240 Vac 240 240 Vac Power
a
For Series 90 connections, you must insert a 340 Ohm resistor across terminals R and W. Refer to Fig. 19 on page 9. The resistor is included with the controller.
b
A separate earth ground is required for all installations regardless of the power source (24, 120, or 240 Vac). Refer to Fig. 5 on page 5.
Table 2. Description of Wiring
Terminal Connections. (Continued)
Connection Terminal Label Description
L1
(HOT)
L2
24 VAC
COM
NO
COM
NO
M24475A
LOAD 2
LOAD 1
SENSOR A
C
NO
NC
C
NO
NC
T T
C
+
Page 7
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
7 62-0254—13
Fig. 9. Wiring for Four-Stage Control – 24 Vac Input
and 24 Vac Load.
Fig. 10. Wiring for Two-Stage Control with 120 Vac
(120 Vac Input and 120 Vac Load Shown).
Fig. 11. Wiring for Two-Stage Control with 240 Vac.
Fig. 12. Wiring for Four-Stage Control with 120 Vac
(120 Vac Input and 120 Vac Load Shown).
L1
(HOT)
L2
24 VAC
M24476
A
SENSOR A
C
NO
NC
C
NO
NC
C
NC
NO
C
NC
NO
T T
COM
LOAD
4
NO
LOAD
3
LOAD
2
LOAD
1
C
+
COM
NO
COM
NO
COM
NO
SENSOR A
C
NO
NC
C
NO
NC
T T
COM
LOAD 2
LOAD 1
NO
COM
NO
COM
120V
M33846
C
+
120
COM
240
POWER SUPPLY
L1 ( HOT )
L2
SENSOR A
C
NO
NC
C
NO
NC
T T
COM
LOAD 2
LOAD 1
NO
COM
NO
COM
240V
M33847
C
+
120
COM
240
POWER SUPPLY
L1 ( HOT )
L2
SENSOR A
C
NO
NC
C
NO
NC
C
NC
NO
C
NC
NO
T T
COM
120V
M33848
LOAD 1
LOAD
3
LOAD
2
COM
NO
LOAD 4
C
+
120
COM
240
COM
NO
Page 8
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
62-0254—13 8
Fig. 13. Wiring for Four-Stage Control with 240 Vac.
Fig. 14. Wiring for Floating Output (Relay 1 and Relay
2 Pair Shown)
.
Fig. 15. Wiring for ML7984 Valve Actuator
(Using 4 to 20 mA Signal)
.
Fig. 16. Wiring for Digital Input (Dry Contact).
Fig. 17. Wiring for Mod Motor or Direct Coupled
Actuator with 4 to 20 mA Control Input
SENSOR A
C
NO
NC
C
NO
NC
C
NC
NO
C
NC
NO
T T
COM
240V
M33849
LOAD 1
LOAD
3
LOAD
2
COM
NO
LOAD 4
C
+
120
COM
240
COM
NO
C
NO
NC
C
NO
NC
M31361
CLOSE RELAY TO DRIVE DEVICE CLOSED. RELAY 1 SHOWN. (RELAYS 1 AND 3 ARE USED FOR CLOSE).
CLOSE RELAY TO DRIVE DEVICE OPEN. RELAY 2 SHOWN. (RELAYS 2 AND 4 ARE USED FOR OPEN).
THE RELAYS MUST BE WIRED IN PAIRS WITH RELAYS 1 AND 2 BEING THE FIRST PAIR, AND RELAYS 3 AND 4 BEING THE SECOND PAIR.
1
2
1
2
120/240 VAC LINE
CLOSE
DEVICE
COM
OPEN
NO
COM
NO
COM
RELAY 1
RELAY 2
M27228A
MODULATING OUTPUT TERMINAL (MOD 1)
B R
W
+
–
B R
W
+
–
T1 T2 B WR
C
POWER
ML7984 ACTUATOR
M24482
DIGITAL
INPUT
+
–
USE SEPARATE TRANSFORMER FOR T775R WHEN USING 24 VAC.
1
M24481A
MODULATING OUTPUT TERMINAL (MOD 1)
B R
W
+
–
B R
W
+
–
POWER
1
T1 T2
–
+
HONEYWELL MODUTROL MOTOR WITH 4-20 mA MODULATING INPUT
Page 9
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
9 62-0254—13
.
Fig. 18. Wiring for Mod Motor or Direct Coupled
Actuator with 0 to 10 Vdc Control Input
Fig. 19. Wiring for Series 90 Modutrol Motor Control
.
Fig. 20. Wiring for Changeover Relay and
Minimum Position Potentiometer Used
with Series 90 Modutrol Motors.
T1 T2 C R
POWER
USE SEPARATE TRANSFORMER FOR T775R WHEN USING 24 VAC.
1
HONEYWELL MODUTROL MOTOR WITH VOLTAGE CONTROL INPUT
1
F
M24483A
MODULATING OUTPUT TERMINAL (MOD 1)
B R
W
+
–
B R
W
+
–
M24484
A
TO VERIFY OUTPUT, TEST OPEN CIRCUIT VOLTAGE BETWEEN THE MOD 1 TERMINALS W AND R.
- MINIMUM (DRIVE CLOSED) SIGNAL LESS THAN 0.17 VDC
- MAXIMUM (DRIVE OPEN) SIGNAL IS GREATER THAN 1.7 VDC
USE SEPARATE TRANSFORMER FOR T775R WHEN USING 24 VAC.
INSERT 340 OHM RESISTOR (INCLUDED) ACROSS TERMINALS R AND W.
1
2
3
MODULATING OUTPUT TERMINAL (MOD 1)
B R W
+
–
B R W
+
–
T1 T2 B WR
POWER
HONEYWELL ELECTRONIC SERIES 90 MODUTROL MOTOR
1
2
3
M24485A
USE SEPAR ATE TRA NSFOR MER FOR T 775R WH EN USIN G 24 VAC.
A 250 OHM R ESISTOR PR OVIDES 40% AUTHO RITY W HEN USING A 150 O HM MIN IMUM P OSITI ON POTEN TIOME TER.
INSERT 340 OHM RESISTOR (INCLUDED) ACROSS TERMINALS R AND W.
1
2
MODULATING OUTPUT TERMINAL (MOD 1)
B R W
+
–
B R W
+
–
T1 T2 B WR
POWER
2
HONEYWELL ELECTRONIC SERIES 90 MODUTROL MOTOR
1
W R B
MINIMUM POSITION POTENTIOMETER (Q20 9)
SPDT CHANGEOVER (H205 OR H705)
3
3
Page 10
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
62-0254—13 10
Fig. 21. Wiring for Three Series 90 Modutrol Motors
.
Fig. 22. Wiring for Unison Control of M9184 or M9185 Modutrol IV Motor Using One Minimum Position
Potentiometer for All Motors.
POWER SU PPLY. PROVIDE DISCON NECT ME ANS A ND OVERLOA D PROTECTI ON AS REQ UIRED.
USE A 1300 O HM RESI STOR FOR T WO MOTORS , 910 OHM RESISTOR FOR THREE MOTO RS. THE 407E AU RESIS TOR KIT, WHIC H IS SHIP PED WITH T HE M9184 A ND M9185 M OTORS, INCLUDES BOTH RESISTORS.
INSERT 340 OHM RESISTOR (INCLUDED) ACROSS TERMINALS R AND W.
1
2
1
2
M9184 OR M9185 MODUTROL MOTOR
W
R
B
TR
TR
W
R
B
TR
TR
W
R
B
TR
TR
M9184 OR M9185 MODUTROL MOTOR
M9184 OR M9185 MODUTROL MOTOR
L1
(HOT)
L2
M24486
MODULATING OUTPUT TERMINAL (MOD 1)
B R
W
+
–
B R
W
+
–
3
3
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
UP TO SIX SIMILAR MOTORS CAN BE CONNECTED IN UNISON.
USE RESISTOR BETWEEN R AND B ON THE MOD 1 TERMINAL: 1300 OHMS FOR TWO MOTORS; 910 OHMS FOR THREE MOTORS (4074EAU KIT).
IF COMMON TRANSFORMER IS USED, ALL MOTORS MUST BE IN PHASE. CONNECT THE SAME TRANSFORMER LEAD TO T1 ON EACH MOTOR, CONNECT THE OTHER TRANSFORMER LEAD TO T2 ON EACH MOTOR.
USE TEMPERATURE CONTROLLER SUCH AS H205 OR H705, OR T675A FOR CHANGEOVER CONTROL.
AUTHORITY OF MINIMUM POSITION POTENTIOMETER, IF USED, INCREASES WITH THE NUMBER OF MOTORS IN PARALLEL. WITH ONE MOTOR, 50% STROKE; WITH TWO MOTORS, 100% STROKE; WITH THREE MOTORS, 100% STROKE WITH 1/3 OF FULL POTENTIOMETER ROTATION.
REVERSING THE B AND W TERMINALS ON ONE OR MORE MOTORS WILL NOT AFFECT CONTROL PERFORMANCE ON THE OTHER MOTORS. THE SYSTEM CAN BE CONFIGURED TO HAVE SOME MOTORS BE REVERSE ACTING AND OTHER MOTORS BE DIRECT ACTING.
USE SEPARATE TRANSFORMER FOR T775 WHEN POWERING FROM 24 VAC.
THE SYSTEM IS SHOWN CONNECTED FOR COOLING. FOR HEATING, REVERSE THE W AND B LEADS OF THE MODULATING OUTPUT ON THE T775 CONTROLLER.
1
1
2
M9184 OR M9185 MODUTROL MOTOR
W
R
B
TR
TR
W
R
B
TR
TR
W
R
B
TR
TR
M9184 OR M9185 MODUTROL MOTOR
M9184 OR M9185 MODUTROL MOTOR
L1 (HOT) L2
W
R
B
MINIMUM POSITION POTENTIOMETER (Q209/S963)
1
2
3
W
B
R
CHANGEOVER CONTROLLER
6
4
2
2
2
5
7
3
9
6
4
5
7
3
8
9
M24487
MODULATING OUTPUT TERMINAL (MOD 1)
B R W
+
–
+
–
B R W
+
–
POWER
24 VAC
8
C
+
Page 11
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
11 62-0254—13
CHECKOUT
Inspect all wiring connections at the controller terminals, and verify compliance with the installation wiring diagrams.
WARNING
Electrical Shock Hazard. Can cause severe injury, death or property damage.
Disconnect power supply before beginning wiring or making wiring connections, to prevent electrical shock or equipment damage.
If any wiring changes are required, first be sure to remove power from the controller before starting work. Pay particular attention to verifying the power connection (24, 120, or 240 Vac).
After the controller is installed and wired, apply power.
Power Loss
The date and time settings are retained for 24 hours after a power outage. After a power loss of more than 24 hours, the date and time settings may need to be reentered. All other settings are stored permanently.
Temperature Sensor Calibration
As wire length increases, resistance increases and thus the temperature reading increases. If necessary, calibrate the sensor input by reducing the value by the amount shown in the Table 3. For example, a wire run with 18 gauge wire of 1,000 feet, requires a calibration offset of
-6.0° F (-21° C).
IMPORTANT
If the calibration value in the table exceeds the controller’s calibration limits of +/-10° F (+/-6° C), you must use a heavier gauge wire.
For example, with a wire run of 1,000 feet you must use 20 AWG wire or heavier in order to calibrate for wire loss within the limits of the controller.
See “2.2.2.2. CALIBRATE (the sensor)” on page 18 for the instructions to enter the calibration value.
Fig. 23 shows how sensor resistance varies with temperature for a sensor having a positive temperature coefficient (PTC) of 2.1 Ohms per degree F (3.85 Ohms per degree C)
.
Fig. 23. Sensor Resistance vs. Temperature.
Table 3. Temperature Sensor Calibration for Resis-
tance Loss Due to Wire Length.
AWG
Rating mΩ/ft
Temperature Offset in
°F (Foot)
a
a
This is the distance from the controller to the sensor (already accounts for round trip distance).
200 ft 500 ft 1,000 ft
14 2.5 0.46 1.14 2.28
16 4.0 0.72 1.82 3.64
18 6.4 1.16 2.90 5.82
20 10.2 1.86 4.64 9.28
22 16.1 2.92 7.32 14.64
AWG
Rating mΩ/m
Temperature Offset in
°C (Meter)
a
100 m 200 m 300 m
14 8.3 0.44 0.86 1.30
16 13.2 0.68 1.38 2.06
18 21.0 1.10 2.18 3.28
20 33.5 1.74 3.48 5.22
22 52.8 2.74 5.48 8.22
M24304
TEMPERATURE (DEGREES)
RESISTANCE (OHMS)
1403
1317
1231
114 5
1059
973
20 40 60 80 100 120 140 160 180 200 220
0 10 20 30 40 50 60 70 80 90 100
°F
°C
0-20-40
120
110
250
-40 -20 -10-30
1489
887
801
1097 ± 0.08 OHMS AT 77°F (25°C)
POSITIVE TEMPERATURE COEFFICIENT (PTC) OF 2.1 OHMS PER °F
1
1
Page 12
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
62-0254—13 12
INTERFACE OVERVIEW
The T775A/B/M controllers use an LCD panel and 6-button keypad to provide status information and permit user input of the programming, setup, and scheduling parameters.
The following figure describes the display areas of the LCD and the keypad
.
Fig. 24. LCD Display - Home Screen And Keypad.
Menu Area – On the home screen, the LCD displays the
configured relays and whether they are active. In Program, Setup or Schedule mode, the LCD displays the current menu selection and its order within the menu hierarchy.
Data Area – On the home screen, the LCD displays the sensors and outputs status. In Setup or Program mode, the LCD displays menu choices, parameter selections, and data values.
Lock Icon – The icon indicates the MENU button is locked and prevents access to the Setup and Program menus.
NOTE: Pressing and holding the HOME and MENU
buttons simultaneously for five seconds locks/unlocks the MENU button.
6-Button Keypad – The keypad is used to access the
menus and enter values (See “Using the LCD Panel Interface”).
Using the LCD Panel Interface
The 6-button keypad is used to move through the menus and enter or change parameter values.
Home Button
Pressing the HOME button at any time exits the current Programming or Setup display screen and returns to the home screen as shown in Fig. 24 and Fig. 25.
Menu Button
•Pressing the MENU button always displays the Program menu. If you are in Setup mode, you exit setup and return to the Program menu.
• Pressing and holding the MENU button for five seconds leaves the current screen and displays the Setup menu.
Left and Right Arrow Buttons ( and )
Use these buttons to move backward () and forward (
) through the Program and Setup menus.
Up and Down Arrow Buttons ( and )
Use these buttons to move your selection up and down through a menu or list.
• When the desired item is highlighted, you press the
arrow button to display that item’s content.
• When a value is displayed (e.g. 70° F), the up and down arrows increase and decrease the value.
NOTE: Once you select an item from a list or enter a
value, pressing the
or or HOME but-
ton accepts your selection or value and stores it in the controller’s memory.
Home Screen
In the normal run state, the LCD home screen displays the current sensed temperatures, the modulating outputs status, the active status of the output relays, and error and status codes.
Active relays are indicated by the small black square () just below the relay number. Fig. 25 shows the home screen with relays 1, 2, and 4 energized.
Pressing the
and buttons from the home screen
cycles through each modulating output that is paired with the sensor it controls and the active output relays
.
Fig. 25. LCD Display - Home Screen Displaying
Sensors, Active Relays, and Mod Outputs.
NOTE: The modulating output home screen and the
relay home screen do not dynamically update the active relay status, sensor values, and modulating output percentages. The information is a snapshot taken when you press the
or button to display the
screen.
MOD1 40% MOD2 60% DI ON
HOME RELAYS 1 2 3 4 ON
SENSORS
SENSOR A
78
SENSOR B
84
MENU AREA
home menu
F
o
F
o
DATA AREA
LOCK ICON
6 BUTTON KEYPAD
M24488
MOD1 40% MOD2 60%
DI ON
HOME RELAYS 1 2 3 4 ON
SENSORS
SENSOR A
78
SENSOR B
84
o
o
F
F
MOD1 40% MOD2 60%
DI ON
HOME RELAYS 1 2 3 4 ON
o
F
o
F
REL 1 ON
HEAT SETPOINT
60
SENSOR A
62
RT 12345 HRS
DI ON
HOME RELAYS 1 2 3 4 ON
MOD 1 40%
COOL SETPOINT
74
SENSOR A
62
o
o
F
F
M24489
MOD1 40% MOD2 60%
Page 13
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
13 62-0254—13
IMPORTANT
After four minutes of inactivity (no buttons pressed), the LCD display reverts to the home screen display.
Accessing the Menus
Menus are used for programming, scheduling, viewing the summary settings, and setup of advanced options.
Programming, Scheduling, and Summary Menus
To access these menus from the home screen, press the MENU button (See Fig. 26)
.
Fig. 26. Menus.
Depending on whether scheduling is enabled or not, the LCD displays one of two menus as shown in Fig. 26. Scheduling is enabled from the Setup menu’s Output settings (See “2.3.3.1. USE SCHED” on page 25).
Setup Menu
To access the Setup menu, press and hold the MENU button for five seconds (Refer to Fig. 27).
Fig. 27. Setup Menu.
Using the Menus
When you are working with the menus, use the:
• Left arrow button (
) to scroll backward through
the 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 parameter
NOTE: If you press the HOME button or there is no
keypad activity for four minutes, you exit Program mode and return to the home screen.
If you press the MENU button, you exit and return to the menu.
MENU
PROGRAM
EXIT
home
menu
OR
MENU DISPLAY WHEN
SCHEDULING IS NOT SET
MENU DISPLAY WHEN
SCHEDULING IS SET
MENU
MOD1 40% MOD2 60%
DI ON
HOME RELAYS 1 2 3 4 ON
F
o
F
o
SENSORS
SENSOR A
78
SENSOR B
84
PROGRAM
SCHEDULE SUMMARY EXIT
M24490
home
menu
SETUP
MOD1 40% MOD2 60%
DI ON
HOME RELAYS 1 2 3 4 ON
FIVE
SECONDS
F
o
F
o
SENSORS
SENSOR A
78
SENSOR B
84
SENSORS
OUTPUTS EXIT
M24491
Page 14
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
62-0254—13 14
1.PROGRAMMING
The controller must be programmed before being placed into service.
IMPORTANT
During programming, the controller is live at all times. For example, the contacts may open and close when adjusting the setpoint.
The Programming process uses a hierarchical menu structure that is easy to use. You press the
and
arrow buttons to move forward and backward through the menus.
NOTES:
1. The controller interface is intuitive. You may find that you do not need the following procedure instructions to program the controller. You may want to use this procedure simply as a reference to locate the particular option or parameter of interest.
2. The menus 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.
3. If you press the HOME button or there is no keypad activity for four minutes, you exit Program mode and return to the home screen.
4. If you press the MENU button, you exit Program mode and return to the menu.
Setpoint and Differential
The following describes the relationship between setpoint and differential for heating and cooling. These settings are programmed for each output relay.
Heating Mode Setpoint and Differential
In heating mode, the differential is below the setpoint. The relay de-energizes when the temperature rises to the setpoint. As the temperature drops to the setpoint minus the differential, the relay energizes.
Cooling Mode Setpoint and Differential
In cooling mode, the differential is above the setpoint. The relay de-energizes when the temperature falls to the setpoint. As the temperature rises to the setpoint plus the differential, the relay energizes.
Setpoint High Limit
You can set a single irreversible setpoint high limit maximum value, which is applied to all outputs.
Adjust the setpoint (at any output) to the desired maximum setpoint. Then, simultaneously press the home,
, and buttons and continue to press all three
buttons for five seconds to set the setpoint high limit maximum to this value.
NOTE: You must press all three buttons at exactly
the same time for this action to occur.
IMPORTANT
1. This action sets the maximum setpoint value of all outputs to the setpoint high limit maximum.
2. Setting the high limit setpoint maximum is irreversible. If you perform the action inadvertently gently and this setpoint adversely affects the control of your system, you must replace the controller.
Programming the T775A/B/M Controller
To program the controller, perform the following procedures in the order listed:
1. Enter Program mode — see “1.1. Entering Program Mode”
2. Program the Outputs — see “1.2. Program Menu for Outputs”
When programming is complete, you may continue with “3. SCHEDULING” on page 30 or, for advanced options, continue with “2. SETUP (ADVANCED OPTIONS)” on page 17.
Fig. 28. Program Menu.
1.1. Entering Program Mode
Press the MENU button, then select PROGRAM and press the
button to view the Program menu.
Fig. 28 shows the Program menus for controllers with and without Modulating Outputs.
NOTE: Modulating outputs are not available on the
T775A and T775B controller models.
OR
MENU PROGRAM
MENU
PROGRAM
M24492
RELAY 1
RELAY 2 RELAY 3 RELAY 4 EXIT
MENU
PROGRAM
MOD 1
MOD 2 RELAY 1 RELAY 2 RELAY 3 RELAY 4 EXIT
Page 15
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
15 62-0254—13
Fig. 29. Program Menu Outputs.
1.2. Program Menu for Outputs
Press the MENU button, select PROGRAM, then select RELAY 1 (or MOD 1) to view the parameters. Fig. 29 shows RELAY 1.
NOTE: For MOD 1 and 2, THROT RNG replaces
DIFFRNTL.
NOTE: The Setback parameter displays only if
scheduling is enabled (See Fig. 57 on page 24) or the DI Option is set to Setback. (See Fig. 60 on page 26).
Continue with “1.2.1. SETPOINT”.
Fig. 30. Program - Setpoint.
1.2.1. SETPOINT
1. From the menu, use the and buttons to
highlight SETPOINT.
2. Press the
button to display the setpoint value.
3. Use the
and buttons to increase/decrease
the desired setpoint temperature.
Default: 70° F (21° C) Range: -40° to 248° F (-40° to 120° C)
4. Press the
button to accept the setpoint
temperature and display the next option.
Fig. 31. Program - Differential or Throttling Range.
1.2.2. DIFFERENTIAL or THROTTLING RANGE
Differential is used for Relay outputs and Throttling Range is used for Modulating outputs.
1. From the menu, use the
and buttons to
highlight THROT RNG or DIFFERNTL.
2. Press the
button to display the throttling range
value.
3. Use the
and buttons to increase/decrease
the desired value.
Default: 20° F (-7° C) Range: 1° to 300° F (1° to 149° C).
4. Press the
button to accept the value and display
the next option.
In heating mode, the Differential is below the setpoint. The relay de-energizes when the temperature rises to the setpoint. As the temperature drops to the setpoint minus the Differential, the relay energizes.
In cooling mode, the Differential is above the setpoint. The relay de-energizes when the temperature falls to the setpoint. As the temperature rises to the setpoint plus the Differential, the relay energizes.
The Throttling Range brackets the setpoint setting, e.g., if the setpoint is 72°F (22° C) and the throttling range is 10° F (-12° C), then the effective throttling temperature range is 67° to 77° F (19° to 25° C). This applies to both modulating outputs and floating outputs.
PROGRAM
RELAY 1
MENU
PROGRAM
RELAY 1
SETPOINT
DIFFRNTL SENSOR HEAT/COOL SETBACK EXIT
M24493
ENTER
SETPOINT
FOR
RELAY 1
PROGRAM
RELAY 1
SETPOINT
MENU
PROGRAM
RELAY 1
SETPOINT
70
F
o
M24494
ENTER
DIFFERENTIAL
FOR
RELAY 1
PROGRAM
RELAY 1
DIFFRNTL
MENU
PROGRAM
RELAY 1
DIFFRNTL
20
F
o
M24495
Page 16
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
62-0254—13 16
Fig. 32. Program - Sensor.
1.2.3. SENSOR
1. From the menu, use the and buttons to
highlight SENSOR.
2. Press the
button to display the sensor selec-
tions.
3. Use the
and buttons to select Sensor A or
B.
4. Press the
button to accept the highlighted sen-
sor and display the next option.
Fig. 33. Program - Heat/Cool.
1.2.4. HEAT/COOL
1. From the menu, use the and buttons to
highlight HEAT/COOL.
Default: HEAT
2. Press the
button to display the heat and cool
selections.
3. Use the
and buttons to select Heat or Cool.
4. Press the
button to accept the highlighted
selection and display the next option.
Fig. 34. Program - Setback.
1.2.5. SETBACK
The Setback temperature option displays if scheduling is enabled (See Fig. 57 on page 24) or the DI Option is set to Setback. (See Fig. 60 on page 26).
This is the desired setpoint temperature that you want to use during setback mode for this output. For example, if your setpoint is 70° F (21° C) and you want the temperature to drop 10° F during setback mode, enter 60° F (16° C) as the setpoint for this output.
1. From the menu, use the
and buttons to
highlight SETBACK.
2. Use the
and buttons to increase/decrease
the desired setpoint temperature.
Default: 60° F (16° C) Range: -40° to 248° F (-40° to 120° C)
3. Press the
button to accept the value and display
the menu.
1.2.6. Program Next Output (Mod or Relay)
For the next output (Mod or Relay), select the desired output from the Program menu (Refer to Fig. 28 on page 14).
Go to “1.2.1. SETPOINT” on page 15 to program the next output.
When you finish programming the outputs, continue with “1.2.7. Exiting Program Mode” on page 17.
MENU
PROGRAM
RELAY 1 SENSOR
SELECT
SENSOR FOR
RELAY 1
SENSOR A
SENSOR B
PROGRAM RELAY 1
SENSOR
M24496
PROGRAM RELAY 1
HEAT/COOL
MENU
PROGRAM
RELAY 1
HEAT/COOL
SELECT
HEAT/COOL
FOR
RELAY 1
HEAT
COOL
M24497
ENTER
SETBACK
SETPOINT
FOR RELAY 1
PROGRAM RELAY 1
SETBACK
MENU
PROGRAM
RELAY 1
SETBACK
60
F
o
M24498
Page 17
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
17 62-0254—13
Fig. 35. Program - Exit.
1.2.7. Exiting Program Mode
Press the HOME button to leave programming mode and return to the home screen.
This completes the programming procedure.
2.SETUP (ADVANCED OPTIONS)
Setup provides the ability to change the factory default settings for the temperature sensors and outputs, to enable/disable reset control, and to enable/disable scheduling.
NOTE: The controller interface is intuitive. You may
find that you do not need the following setup instructions for the sensors and outputs. 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 Setup mode and return to the home screen.
2. If you press the MENU button, you exit Setup mode and return to the menu.
Setup Procedure
The Setup process uses a hierarchical menu structure that is easy to use. You press the
and arrow buttons
to move forward and backward through the menus.
NOTE: The menus 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.
Once in Setup mode, you use the —
• Left arrow button (
) to scroll backward through the
Setup 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 setup parameter
To change the controller’s sensors and output setup parameters, perform the following procedures in the order listed:
1. Enter Setup mode — see “2.1. Entering Setup Mode”
2. Setup Sensors — see “2.2. Setting up the Sensors”
3. Setup Outputs — see “2.3. Setting up the Outputs”
on page 21
4. Exit Setup Mode — see “2.4. EXIT Setup Mode” on page 30
2.1. Entering Setup Mode
To enter Setup mode, press and hold the MENU button for five seconds to display the Setup menu. Refer to Fig. 27 on page 13.
Fig. 36. Setup - Sensors Menu.
2.2. Setting up the Sensors
1. From the Setup menu, use the and buttons
to highlight SENSORS.
2. Press the
button to display the Sensors menu.
MENU
PROGRAM
MOD 1 MOD 2 RELAY 1 RELAY 2 RELAY 3 RELAY 4
EXIT
M24499
SETUP
SENSORS
SETUP
SENSORS
# SENSORS
SENSOR A SENSOR B EXIT
M24500
Page 18
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
62-0254—13 18
Fig. 37. Setup - Sensors - Number of Sensors.
2.2.1. Number of SENSORS
The value entered here determines the number of sensors displayed on the home screen.
1. From the Sensors menu, highlight # SENSORS then press the
button to display the number of
sensors.
2. Use the
and buttons to enter the number of
sensors (1 or 2).
Default: 2
3. Press the
button to accept the value and display
the SENSOR A selection.
Fig. 38. Setup - Sensors - Sensor A Menu.
2.2.2. SENSOR A
1. From the Sensors menu, highlight SENSOR A.
2. Press the
button to display the Sensor A
selections.
Fig. 39. Setup - Sensors - Sensor A - Units.
2.2.2.1. UNITS (° F or ° C)
IMPORTANT
This is a global change and affects the unit values for all temperature parameters on all displays.
The UNITS screen displays only for Sensor A.
1. From the Sensor A selections, use the
and
buttons to highlight UNITS.
2. Press the
button to display the temperature
units.
3. Use the
and buttons to highlight F or C.
Default: F (Fahrenheit)
4. Press the
button to accept the units and return
to the Sensor A selections.
Fig. 40. Setup - Sensors - Sensor A - Calibrate.
2.2.2.2. CALIBRATE (the sensor)
Ensure that the wire size calibration value is within the limits. See “Temperature Sensor Calibration” on page 11.
1. From the Sensor A selections, use the
and
buttons to highlight CALIBRATE.
2. Press the
button to display the calibration
degree value.
3. Use the
and buttons to increase/decrease
the desired calibration degrees.
Default: 0.0 Range: +/-10° F (+/-6° C)
4. Press the
button to accept the value and return
to the Sensor A selections.
ENTER
NUMBER OF
SENSORS
SETUP SENSORS
# SENSORS
SETUP
SENSORS
# SENSORS
2
M24501
SETUP
SENSORS
SENSOR A
SETUP
SENSORS
SENSOR A
UNITS
CALIBRATE LABEL EXIT
M24502
SETUP
SENSORS SENSOR A
UNITS
SETUP
SENSORS
SENSOR A
UNITS
SELECT
UNITS FOR
SENSOR A
DEG F
DEG C
M24503
SETUP
SENSORS SENSOR A
CALIBRATE
ENTER
VALUE TO
CALIBRATE
SENSOR A
SETUP
SENSORS
SENSOR A
CALIBRATE
M24504
0.0
F
o
Page 19
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
19 62-0254—13
Fig. 41. Setup - Sensors - Sensor A - Label.
2.2.2.3. LABEL (the sensor input)
For a sensor already labeled, the display positions to and highlights that label.
1. From the Sensor A selections, use the
and
buttons to highlight LABEL.
2. Press the
button to display the label list.
3. Use the
and buttons to scroll through list
and highlight the desired label. You may need to scroll up or down to view all possible labels.
4. Use the
button to accept the highlighted label
and exit the list.
NOTE: The label names in list order are: Sensor,
Boiler, Outdoor, Duct, Dischrg, Chiller, Room, Supply, Return, and Animals.
Fig. 42. Setup - Sensors - Sensor A - Exit.
2.2.2.4. Exit Sensor A Setup
Press thebutton to exit Sensor A selections and return to the Sensors menu. or Use the
and buttons to highlight EXIT and press
the
button.
Fig. 43. Setup - Sensors - Sensor B Menu.
2.2.3. SENSOR B
For the T775M2030 and T775M2048 models only, which have a High/Low modulating temperature limit, the LIMIT item displays on the Sensor B menu.
1. From the Sensors menu, use the
button to
highlight SENSOR B.
2. Press the
button to display the Sensor B menu.
2.2.3.1. CALIBRATE
Setting the calibration value is accomplished the same way as the Sensor A. See “2.2.2.2. CALIBRATE (the sensor)” on page 18.
2.2.3.2. LABEL
Setting the label is accomplished the same way as the Sensor A. See “2.2.2.3. LABEL (the sensor input)” on page 19.
SETUP
SENSORS SENSOR A
LABEL
SETUP
SENSORS
SENSOR A
LABEL
SELECT
LABEL FOR
SENSOR A
SENSOR A BOILER A OUTDOOR A DUCT A DISCHRG A CHILLER A ROOM A
M24505
SETUP
SENSORS
SENSOR A
UNITS CALIBRATE LABEL
EXIT
M24506
SETUP
SENSORS
SETUP
SENSORS
# SENSORS SENSOR A
SENSOR B
EXIT
SETUP
SENSORS
SENSOR B
CALIBRATE
LABEL LIMIT EXIT
M24507
Page 20
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
62-0254—13 20
Fig. 44. Setup - Sensors - Sensor B - Limit.
2.2.4. LIMIT (Sensor B only)
For the T775M2030 and T775M2048 models only, the LIMIT item displays on the Sensor B menu.
NOTE: The LIMIT option acts only on Modulating
Output 1.
1. From the Sensors menu, use the button to
highlight SENSOR B.
2. Press the
button to display the Sensor B menu.
3. Use the
and buttons to select the LIMIT
item.
4. Use the
button to display the Limit selections.
5. Use the
and buttons to select the desired
limit, (Disable, Hi Limit, or Low Limit).
Default: Disable
6. Press the
button to accept the value and return
to the Sensor B menu.
When you select Hi Limit or Low Limit, the Sensor B menu changes and adds the Hi/Low Limit and Throttling Range items.
If you are setting a Hi or Low Limit, continue with “2.2.4.1. HI LIMIT or LOW LIMIT (Sensor B only)”.
If you selected Disable for the Limit value, continue with “2.3. Setting up the Outputs” on page 21.
Fig. 45. Setup - Sensors - Sensor B - Hi/Low Limit
(showing Hi Limit).
2.2.4.1. HI LIMIT or LOW LIMIT (Sensor B
only)
Fig. 45 shows the High Limit, but the process is the same for setting the Low Limit.
Sensor B can be assigned a high/low limit, so that as you are controlling temperature at Sensor A, the control adjusts its modulating output to prevent exceeding the user-entered limit for Sensor B.
1. From the Sensor B menu, use the
button to
highlight HI LIMIT or LOW LIMIT.
2. Press the
button display the LIMIT value.
3. Use the
and buttons to increase/decrease
the desired Limit value.
4. Press the
button to accept the value and return
to the Limit menu.
The high and low limit action will work in either the heat or the cool mode as follows:
• When the low limit is used in the heat mode, the MOD1 output increases to prevent reaching the low limit at sensor B.
• When the high limit is used in the heat mode, the MOD1 output decreases to prevent reaching the hi limit at sensor B.
• When the low limit is used in the cool mode, the MOD1 output decreases to prevent reaching the low limit at sensor B.
• When the high limit is used in the cool mode, the MOD1 output increases to prevent reaching hi limit at sensor B.
SETUP
SENSORS SENSOR B
LIMIT
SETUP
SENSORS
SENSOR B
LIMIT
SELECT
HI/LOW
LIMIT FOR
SENSOR B
DISABLE
HI LIMIT LOW LIMIT
M24508
SETUP
SENSORS
SENSOR B
UNITS CALIBRATE LABEL LIMIT
HI LIMIT
THROT RNG EXIT
SETUP
SENSORS SENSOR B
ENTER
VALUE FOR
SENSOR B
HI LIMIT
SETUP
SENSORS
SENSOR B
HI LIM
90
F
o
M24509
Page 21
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
21 62-0254—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 the
button 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 andbuttons
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
10
F
o
M24510
SETUP
OUTPUTS
SETUP
OUTPUTS
MOD 1
MOD 2 # RELAYS OPTIONS RELAY 1 RELAY 2 RELAY 3 RELAY 4 EXIT
M24511
SETUP
OUTPUTS
MOD 1
SETUP
OUTPUTS
MOD 1
TYPE
MIN OUT % INTEGRAL DERIVATIV SCHEDULE HIDE EXIT
M24512A
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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% incre­ments.
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
TYPE
SETUP
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
400
SEC
M24515
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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
0
SEC
M24516
SETUP
OUTPUTS MOD 1
SCHEDULE
SETUP
OUTPUTS
MOD 1
SCHEDULE
USE
SCHEDULE
FOR
OUTPUTS
YES
NO
M24517
SETUP
OUTPUTS MOD 1
HIDE
SETUP
OUTPUTS
MOD 1
HIDE
HIDE MOD 1 ON
HOME SCREEN
YES
NO
M28656
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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
OPTIONS
SETUP OUTPUTS OPTIONS
USE SCHED
MIN OFF MIN ON DI OPTS SHOW RT SYNC EXIT
M24520A
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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 sec­onds 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 SCHED
SETUP 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
0
SEC
M24522A
OR
MIN ON
ENTER
MINIMUM
ON TIME
FOR RELAYS
SETUP OUTPUTS OPTIONS
MIN ON
0
SEC
MIN OFF
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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 de­energized 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 OPTS
SETUP
OUTPUTS
OPTIONS
DI OPTS
SELECT DI
OPTIONS
FOR
OUTPUTS
DISABLE
SETPOINT SETBACK ENABLE IGNORE
M24523A
SETUP
OUTPUTS OPTIONS
SHOW RT
SETUP
OUTPUTS
OPTIONS
SHOW RT
USE
RUNTIME
FOR
RELAYS
YES
NO
M24524
SETUP
OUTPUTS OPTIONS
SYNC
SETUP
OUTPUTS
OPTIONS
SYNC
ALL
SETPTS
CHANGE
NO
YES
M28657
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27 62-0254—13
Fig. 63. Setup - Outputs - Options - Exit.
2.3.3.6. Exit Options Setup
Press thebutton (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 1
SETUP
OUTPUTS
RELAY 1
TYPE
SCHEDULE RESET RESET RT EXIT
M24526
SETUP
OUTPUTS
RELAY 1
TYPE
SETUP
OUTPUTS
RELAY 1
TYPE
SELECT
TYPE FOR
RELAY 1
STANDARD
FLOATING
M24527
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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 1
SETUP
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
90
SEC
M24529
SETUP
OUTPUTS FLOAT 1
INTEGRAL
ENTER
INTEGRAL
TIME FOR
FLOAT 1
SETUP
OUTPUTS
FLOAT 1
INTEGRAL
400
SEC
M24530
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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
0
SEC
M24531
SETUP OUTPUTS RELAY 1
SCHEDULE
SETUP
OUTPUTS
RELAY 1
SCHEDULE
USE
SCHEDULE
FOR
OUTPUTS
YES
NO
M24532
SETUP
OUTPUTS RELAY 1
RESET RT
SETUP
OUTPUTS
RELAY 1
RESET RT
RESET
RUN TIME
FOR
RELAY 1
YES
NO
M24533
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Fig. 72. Setup - Outputs - Relay - Exit.
2.4. EXIT Setup Mode
Press thebutton 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
SCHEDULE
MENU
SCHEDULE
OPTIONS
MON-FRI SAT-SUN MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY SUNDAY EXIT
M24536
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Fig. 74. Schedule - Options Menu.
3.2. OPTIONS
1. From the Schedule menu, use the and but-
tons to highlight OPTIONS.
2. Press the
button to display the Options menu.
Fig. 75. Schedule - Options - System Time.
3.2.1. SET TIME
Setting the system time is required to enable the controller to follow daylight saving time.
IMPORTANT
Set the Date before setting the Time. See “3.2.2. SET DATE”.
1. From the Options menu, use the
and but-
tons to highlight SET TIME.
2. Press the
button to display the current system
time setting.
3. Use the
button to cycle between the hour, min-
ute, and AM/PM values.
4. Use the
and buttons to increase/decrease
the desired value for the hour, minute, and AM/PM.
5. Press the
button to accept the Time and return
to the Options menu.
Fig. 76. Schedule - Options - System Date.
3.2.2. SET DATE
Setting the system date is required to enable the controller to follow daylight saving time.
IMPORTANT
To properly account for Daylight Saving time, be sure to set the Date before setting the Time.
1. From the Options menu, use the
and but-
tons to highlight SET DATE.
2. Press the
button to display the current system
date setting.
3. Use the
button to cycle between the month, day,
and year values.
4. Use the
and buttons to increase/decrease
the desired value for the month, day, and year.
5. Press the
button to accept the Date and return to
the Options menu.
MENU
SCHEDULE
OPTIONS
MENU
SCHEDULE
OPTIONS
SET TIME
SET DATE DAYLIGHT EXIT
M24537
MAIN
SCHEDULE OPTIONS
SET TIME
SET
SYSTEM
TIME
MAIN
SCHEDULE
OPTIONS SET TIME
08:12 AM
M24538
MAIN SCHEDULE OPTIONS
SET DATE
SET
SYSTEM
DATE
MAIN
SCHEDULE
OPTIONS
SET DATE
01/01/2007
M24539
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Fig. 77. Schedule - Options - Daylight Saving Time.
3.2.3. DAYLIGHT (daylight saving time)
1. From the Options menu, use the and but-
tons to highlight DAYLIGHT.
2. Press the
button to display the current system
setting for daylight saving time.
3. Use the
and buttons to select YES or NO.
Default: YES
4. Press the
button to accept the value and return
to the Options menu.
5. From the Options menu, use the Use the
and
buttons to highlight EXIT.
6. Press the
button to return to the Schedule
menu.
Fig. 78. Schedule Event Menu (Showing MON-FRI).
3.3. Setting Individual Schedules
As shown in the Schedule menu (Fig. 73 on page 30), schedules can be set for the following time periods:
• Monday through Friday
• Saturday and Sunday
• Individual days of the week
1. From the Schedule menu, use the
and but-
tons to highlight the desired time period.
2. Press the
button to display the Schedule menu
for the selected time period.
For each selected time period, the schedule event (E1 and E2) parameters are exactly the same as shown in Fig. 78.
SCHEDULING EXAMPLE
Setting the schedule is independent of the temperature settings for the relay outputs. The following illustrates a weekly schedule for daytime (setpoint) and night time (setback) use and shows the factory default settings:
To set a schedule, continue with “3.3.1. E1 SETPT (setpoint for event 1)”.
The following figures show the MON-FRI menu, but the menu selections are the same for any time period.
MAIN
SCHEDULE OPTIONS
DAYLIGHT
MAIN
SCHEDULE
OPTIONS
DAYLIGHT
USE
DAYLIGHT
SAVING
TIME
YES
NO
M24540
MENU
SCHEDULE
MON-FRI
MENU
SCHEDULE
MON-FRI
E1 SETPT
E1 TIME E2 SETPT E2 TIME EXIT
M24541
Table 4. Mon-Fri Schedule Defaults
DAY EVENT SETPT ACTION TIME
Mon-Fri Event 1 (E1) Setpoint
6:00 AM
a
a
Setpoint time span is 6:00 AM until 5:59 PM because setback starts at 6:00 PM.
Mon-Fri Event 2 (E2) Setback
6:00 PM
b
b
Setback time span is 6:00PM until 5:59 AM because setpoint starts at 6:00 AM.
Sat-Sun Not used; remains in Setback from Mon-Fri E2
settings
Page 33
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
33 62-0254—13
Fig. 79. Schedule - Event 1 Setpoint.
3.3.1. E1 SETPT (setpoint for event 1)
1. From the selected time period menu, use the
and buttons to highlight E1 SETPT.
2. Press the
button to display the setpoint options.
3. Use the
and buttons to highlight the desired
option.
4. Press the
button to accept the value and return
to the selected time period menu.
Fig. 80. Schedule - Event 1 Time.
3.3.2. E1 TIME (time for event 1)
1. From the selected time period menu, use the
and buttons to highlight E1 TIME.
2. Press the
button to display the current time
setting for event 1.
3. Use the
button to cycle between the hour, min-
ute, and AM/PM values.
4. Use the
and buttons to increase/decrease
the desired value for the hour, minute, and AM/PM.
5. Press the
button to accept the time and return to
the selected time period menu.
3.3.3. E2 SETPOINT (setpoint for event 2)
Creating the setpoint for event 2 is accomplished the same way as the first event. See“3.3.1. E1 SETPT (setpoint for event 1)” on page 33.
3.3.4. E2 TIME (time for event 2)
Creating the time for event 2 is accomplished the same way as the first event. See “3.3.2. E1 TIME (time for event
1)” above.
3.3.5. EXIT (exit from selected time period
settings)
After entering the time for event 2, use thebutton to exit the schedule time period and return to the Schedule menu (Fig. 73 on page 30) to select a different time period.
When you finish scheduling the time periods, continue with “3.4. Exiting Scheduling Mode”.
3.4. Exiting Scheduling Mode
Press the HOME button to exit the Schedule menu and return to the home screen display.
This completes the Scheduling procedure.
MAIN SCHEDULE MON-FRI
E1 SETPT
MENU
SCHEDULE
MON-FRI
E1 SETPT
SELECT
SETPOINT
FOR
EVENT 1
SETPOINT
SETBACK NOT USED
M24542
MAIN SCHEDULE MON-FRI
E1 TIME
SET TIME FOR
EVENT 1
MAIN
SCHEDULE
MON-FRI
E1 TIME
6:00 AM
M24543
Page 34
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
62-0254—13 34
SUMMARY MENU
The Summary menu provides the ability to view the schedule (E1 and E2 times) for each relay for each day of the week.
NOTE: Scheduling must be enabled for the
Summary menu to display. Enabling the schedule is determined in the Setup process for the Output Options (see “2.3.3.1. USE SCHED” on page 25).
Fig. 81. Summary Example - Monday Settings.
For each relay, the Summary display indicates the time and temperature (in parenthesis) for each of the two scheduled events E1 and E2.
1. Press the MENU button to view the menu.
2. Use the
and buttons to highlight
SUMMARY.
3. Press the
button to display the Summary
settings.
4. Use the
button to scroll forward through each
day of the week (Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, and Sunday).
5. While viewing a specific day, use the
and
buttons to cycle through the individual relay schedules for that day.
When finished, press the home key to return to the home display screen.
TROUBLESHOOTING
Power Loss
The date and time settings are retained for 24 hours after a power outage. After a power loss of more than 24 hours, the date and time settings may need to be reentered. All other settings are stored permanently.
Errors and Diagnostics
The controller provides an error message and diagnostic status as described below.
Error Message
There is a two-character error code that displays in response to controller software problems:
EE
EEPROM Failure — The values read back from
the EEPROM are not the same as written into the EEPROM. This error cannot be field repaired. Replace the device.
Diagnostic Messages
There are two diagnostic messages that can display in response to sensor problems. The diagnostic codes that can flash on the display are:
– –
Sensor Open or Shorted — Two dashes display
when a sensor (typically temperature) is open or shorted. An open circuit is considered anything greater than 1570 ohms (greater than 300F), shorted anything less than 770 ohms (less than -73F). Whichever stages are operating with this sensor cease to control (meaning relays go to OFF and proportional outputs go to zero percent).
This message can also mean that the sensor is programmed, but not physically connected.
-60° or 270° F (-51° or 132° C) Blinking
Temperature Out of Range — The temperature
display blinks when the sensed temperature range is outside of the display range, below -60° F (-51° C) or above 270° F (132° C). The displayed value remains at that displayed limit and control continues. Controller continues to function unless an open or shorted state is detected.
Blinking relay status
Relay Minimum Off Time is Active — On the home
screen, each relay’s indicator () blinks while the relay’s minimum off time is active.
MENU
SUMMARY
MENU
SUMMARY
MONDAY
RELAY 1-2 E1: 06:00AM (72) E2: 06:00PM (65)
M24545
Page 35
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
35 62-0254—13
SPECIFICATIONS
Power: 24, 120, or 240 Vac; 50/60 Hz;
A separate earth ground is required for any power source.
Power Consumption:
• 8 VA maximum at 60 Hz
• 10 VA maximum at 50 Hz
Operating & Storage Temperature Ambient Rating:
• -40° to 125° F (-40° to 52° C) @ 50 Hz
• -40° to 140° F (-40° to 60° C) @ 60 Hz
Relative Humidity: 5% to 95% non-condensing
Relay Contact Output Ratings (N.O. and N.C.):
• 1/2 hp; 9.8 AFL, 58.8 ALR @ 120 Vac
• 1/2 hp; 4.9 AFL, 29.4 ALR @ 240 Vac
• 125 VA pilot duty @ 120/240 Vac
• 10A @ 24 Vac (resistive)
Modulating Outputs:
• 0-10 Vdc; drive a minimum of 2,000 Ohms
• 2-10 Vdc; drive a minimum of 2,000 Ohms
• 4-20 mA; drive a maximum of 600 Ohms
• Electronic Series 90
• Floating
DOC
Emissions Compliance
EN 55022: 2006 CISPR 22: 2006 VCCI V-3/2006.04 ICES-003, Issue 4: 2004 FCC PART 15 SUBPART B Class B Limit
Immunity Compliance
EN 61000-6-1: 2001 covering
EN 61000-4-2: 1995 + A1: 1998 + A2: 2001 EN 61000-4-3: 2002 EN 61000-4-4: 2004 EN 61000-4-5: 1995 + A1: 2001 EN 61000-4-6: 1996 + A1: 2001 EN 61000-4-8: 1993 + A1: 2001 EN 61000-4-11 2nd Ed.: 2004
Safety Compliance
UL 60730-1 for US and Canada
FCC Compliance Statement:
This equipment has been tested and found to comply with limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in residential installations. This equipment generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television equipment reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: — Reorient or relocate the receiving antenna — Move the equipment away from the receiver — Plug the equipment into an outlet on a circuit different
from that to which the receiver is connected
— Consult the dealer or an experienced radio/television
technician for additional suggestions
You are cautioned that any change or modifications to the equipment not expressly approve by the party responsible for compliance could void Your authority to operate such equipment.
This device complies with Part 15 of the FCC Rules. Operation is subjected to the following two conditions 1) this device may not cause harmful interference and 2) this device must accept any interference received, including interference that may cause undesired operation.
Page 36
T775A/B/M SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
customer.honeywell.com
® U.S. Registered Trademark © 2012 Honeywell International Inc. 62-0254—13 M.S. Rev. 10-12 Printed in United States
By using this Honeywell literature, you agree that Honeywell will have no liability for any damages arising out of your use or modification to, the literature. You will defend and indemnify Honeywell, its affiliates and subsidiaries, from and against any liability, cost, or damages, including attorneys’ fees, arising out of, or resulting from, any modification to the literature by you.
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