T24-DM1 / T24-DM2 LCD Temperature Controller

T24-DM1 / T24-DM2 LCD Temperature Controller
Overview of functions
LCD temperature controller T24-DM1 / T24-DM2
provides the foundation for modern single room
concepts
Features
LCD with white backlight
Proportional output(s) DC 0-10V or 2-10V
Adjustable P-band and I-time, setpoint range.
Display selection
Unoccupancy mode
Memory retention after power failure
2-pipe(T24-DM1) or 4-pipe(T24-DM2) system
External sensor TG-M10000 and TG-M10002 (optional)
Technical Data
T24-DM1 / T24-DM2
Nominal Voltage
Power Consumption
AC 24V 50/60 Hz (+/-15%, AC 20.4V ... 27.6V)
1VA @ AC 24V
Ouptut(s)
Built-in Sensor
External Sensor (optional)
Temperature Range
DC 0-10V or 2-10V by jumper setting
NTC thermistor , 10k ohm @ 25°C
Probe type, TG-M10000; Duct type, TG-M10002
Display : 0 to 40°C
Set point : 5 to 40°C, 0.5K increment
Mode
ON / STANDBY
Cooling / Heating (**Auto change-over between cooling & heating )
**Deadband
Proportional Band
Integral Time
Display Offset
Temperature Differential
Lower Set Point Limit [LSP]
Upper Set Point Limit [USP]
**Adjustable 1K to 5K between cool & heat (Factory setting 3K)
Adjustable 1 to 10K (Factory setting 5K)
Adjustable 0 to 300 seconds (Factory setting 60 seconds)
Display temperature adjust: -2,-1,0,1,2 (Factory setting 0)
1K
Adjustable 5-35°C (Factory setting 5°C)
Adjustable 9-40°C (Factory setting 40°C)
Unoccupancy Set Point Range
Cooling 5°C to 36°C (Factory setting 26°C)
Heating 9°C to 40°C (Factory setting 16°C)
Unoccupancy contact input
Connection
Voltage-free dry contact only
2
Screw terminals, max. 1.0mm or AWG #18
Ambient Humidity
Body Material
Max. 90% r.h. , non-condensing
Self-extinguishing, Molded ABS
Weight
Dimensions (L x H x D)
Mounting
Degree of Protection
Agency Approval
120g
86 x 86 x 28.5 (mm)
Wall mounted, holes separated 60mm vertically, 2x screws provided
IP 30
CE mark compliant to EMC Directive
**Only available on T24-DM2
Installation and Dimensions
86 mm
Subject to technical change V1.3 01062010
To be opened by accredited servicing agents only
Electronic control - Type 2.B action (micro-disconnection operation)
Separate collection for electrical and electronic equipment
60 mm
86 mm
28.5mm
1
T24-DM1 / T24-DM2 LCD Temperature Controller
Setup Menu
1. Enter setup menu
Switch the unit to ‘standby’ mode, press and hold “
holding “ - ” for 10s until “ S-F ” appears.
”, then press“ - ” , hold “ - ” and release “
”, keep
2. Select sub-menu “ S-F ” or “ S-P ” After entering setup menu and “ S-F ” appears, press “ + “ or “ - ” to select “ S-F ” or “ S-P ”, confirm by “
3. Select function under sub-menu
Under sub-menu, press “
4. Adjust the parameters
Press “ + ” or “ - ” to adjust the parameters values.
5. Save changes &
go back to sub-menu
Press and hold “
6. Exit setup menu
Time out
Under sub-menu, press “
” to exit.
If there is no key operation within 30 seconds, new setting will not be stored and exit automatically.
Sub-Menu S-F
Firmware version
Temperature display
Selection for un-occupancy mode
Display selection
S
t
uA
c
Restore factory setting
rF
Sub-Menu S-P
Proportional band
Integral time
Upper set point limit
Lower set point limit
Un-occupancy set point range-cool
Un-occupancy set point range-heat
Display offset
**Deadband
A
I
U
L
C
H
n
d
”.
” key momentarily to select the functions sequentially.
” , then press“ + ” , hold “ + ” and release “
”, keep holding “ + ” for 1s.
Display only
o
Display in C
To select uA1 or uA2
cAt = display ambient temperature
cSP = display setpoint value
rFC = current setting;
rFS = restore factory setting
[Factory setting rFC]
To select value from 1 to 10K
To set the value from 0 to 30 (1=10s)
o
To set the value from 9 to 40 C
o
To set the value from 5 to 36 C
o
To set the value from 5 to 40 C
o
To set the value from 5 to 36 C
To set the value to -2,-1,0,1, or 2
To set the value from 1 to 5K
[Factory setting 5K]
[Factory setting 6] o
[Factory setting 40 C]
o
[Factory setting 5 C]
o
[Factory setting 26 C]
o
[Factory setting 16 C]
[Factory setting 0]
[Factory setting 3K]
o
[Factory setting C only]
[Factory setting uA1]
[Factory setting cAt]
**Only available on T24-DM2
Jumper Setting
JP 1
Opened
Closed
For external sensor
For built-in sensor [Factory setting]
JP 2
Opened
Closed
For DC 0-10V ouput
For DC 2-10V ouput [Factory setting]
JP2 JP1
Wiring Diagrams
GND
OCU
C om
A C 24V
A C 24V
T24-DM2
T24-DM1
Terminals for sensor
SR1
C om
External
sensor
Occupancy
contact
1
1
2
2
Valve Actuator
Cool Valve Actuator
0-10V
2
3
3
0-10V
2
3
3
4
5
F eedback
1
4
5
F eedback
1
5
3
0-10V
2
5
*2 & 4 are internally shorted
*2 & 4 are internally shorted
5
1
F eedback
Heat Valve Actuator
Subject to technical change V1.3 01062010
Notes
22 or 24 AWG twisted shielded pair double insulated cable is recommended as sensor cable and its length must not exceed 25m.
Do not bundle and run power cable and sensor cable in the same conduit.
When using external sensor, run the cable away from any electric motor or power cable.
Remove JP1 whenever using external sensor.
Un-occupancy contact closure activates un-occupancy mode.
To be opened by accredited servicing agents only
Electronic control - Type 2.B action (micro-disconnection operation)
Separate collection for electrical and electronic equipment
2
T24-DM1 / T24-DM2 LCD Temperature Controller
Error code
Error codes will be displayed on LCD display unit with below errors.
E-1
E-2
E-3
EEPROM read/write error
Temperature sensor open circuit
Temperature sensor short circuit
*If jumper JP1 is opened and external sensor is used, E-2 means the external sensor may have been disconnected from terminals
SR1 and GND. Check the external sensor’s connectivity and resistance value.
Setup Menu - description
Menu
Main
S- F
System
Function
Selection
Sub
MCU firmware (software) revision level
Appears once only after entering the setup mode
t
Temperature unit
Fixed at ºC, not changeable.
Appears once only after entering the setup mode.
uA
Activation selection for unoccupancy
mode
uA1 = unoccupancy mode can only be activated when thermostat is in
operating mode (factory setting)
uA2 = unoccupancy mode can be activated when thermostat is in
either standby mode or operating mode
Display selection
cAt = display ambient temperature (factory setting)
cSP = display setpoint value
rFC = Retain current settings (factory setting)
rFS = Restore factory settings
rF
Restoration of factory settings
A
Proportional Band
To set proportional band from 1 to 10K, in 1K increments (factory
setting 5K)
I
Integral time for PI control
U
Upper occupancy set point limit setting
To set integral time from 0 (0s) to 30 (300s) in numeric 1 (10s)
increments. [factory setting 6 (60s)].
Setting 0 means integral time being turned off.
To set upper occupancy set point limit, adjustable between current
lower set point limit value and 40°C (factory setting 40°C). The
program is set such that there is always a minimum separation of 4
degrees maintained between the upper occupancy set point limit value
and the lower set point limit value.
L
Lower occupancy set point limit setting
To set lower occupancy set point limit, adjustable between current
upper set point limit value and 5°C (factory setting 5°C). The program
is set such that there is always a minimum separation of 4 degrees
maintained between the upper occupancy set point limit value and the
lower set point limit value.
C
Unoccupancy cooling set point setting
To set unoccupancy cooling set point, adjustable between current
unoccupancy heating set point value and 40°C (factory setting 26°C).
The program is set such that there is always a minimum separation of
4 degrees maintained between the unoccupancy cooling set point
value and the unoccupancy heating set point value.
H
Unoccupancy heating set point setting
To set unoccupancy heating set point, adjustable between current
unoccupancy cooling set point value and 5°C (factory setting 16°C).
The program is set such that there is always a minimum separation of
4 degrees maintained between the unoccupancy cooling set point
value and the unoccupancy heating set point value.
n
Offset adjustment of temperature indication (field recalibration of measured temperature)
n 2 = temperature indication plus 2 degrees
n 1 = temperature indication plus 1 degree
n 0 = no offset (factory setting)
n-1 = temperature indication minus 1 degree
n-2 = temperature indication minus 2 degrees
Deadband adjustment for dual-output
models only
Auto change-over
Cooling
Heating
On
To set auto cool/heat changeover deadband value from 1 to 5K.
[factory setting 3K (± 1.5K of set point value)]: when ambient
temperature is 1.5K above set point value, controller will go into
cooling mode or when ambient temperature is1.5K below set point
value, controller will go into heating mode.
**d
Subject to technical change V1.3 01062010
Description
S
c
S- P
System
Operating
Parameter
Setting
Function
Off
Set point
1.5K 1.5K
**only available on T24-DM2
To be opened by accredited servicing agents only
Electronic control - Type 2.B action (micro-disconnection operation)
Separate collection for electrical and electronic equipment
3

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