ENDA EHTC7425A HUMIDITY AND TEMPERATURE CONTROLLER

• Read this document carefully before using this device. The guarantee will be expired by damaging of the device if you don’t attend to the directions in the user manual. Also we don’t accept any compensations for personal injury, material damage or capital disadvantages.

ENDA EHTC7425A HUMIDITY AND TEMPERATURE CONTROLLER

• 72 x mm sized.
• Dual 4 digit display
• 0/4-20mA, 0-10V, 1- 5V analog or digital input (Specify at Order).
• Heating or cooling control selection.
• PID, On-Off Temperature control selection.
• PID Auto-calculation (SELF TUNE).
• Humidification or drying control selection.
• Internal supply output for sensor.
• Time and temperature-dependent fan relay output selection.
• 2 Relay outputs with time setting for incubation operations.
• Adjustable buzzer alarm feature for measurement values.
• CE marked according to European Norms.
  

1. Input
   AS….. ..Analog Input
   DS….. .Digital Input
   Sensor must be ordered separately.
2. Supply Voltage
   230………230V AC
   110……….110V AC
   SM……..10…30V DC
   8…24V AC
3. Mod Bus
   Blank……N/A
   RSI………Mod Bus
   Specify at Order).
   Please see page 6 for Modbus Connection Diagram.
   
4. SSR
   Blank……N/A
   SSR………Mod Bus
   Applies to the heat output)

TECHNICAL SPECIFICATIONS

DIMENSIONS

1. To removing the device from panel : – While pressing both side of the device in direction 1 and push it in direction 2

    NOTE:-

1. While panel mounting, additional distance is required for connection cables.
2. Panel thickness should be maximum 10mm
3. If there is no 90mm free space at back side of the device, it would be difficult to remove it from the panel.

SENSOR (Must be ordered separately)

EHTD-CB-100 Digital Output Humidity Temperature Sensor
EHTD-CB-100 ( Used with EHTC7425A-DS-XX )

INSTALLATION

Note :-

1. Mains supply cords shall meet the requirements of IEC 60227 or IEC 60245.
2. In accordance with the safety regulations, the power supply switch shall bring the identification of the relevant instrument and it should be easily accessible by the operator.

ENDA EHTC725A is intended for installation in control panels. Make sure that the device is used only for intended purpose. The shielding must be grounded on the instrument side. During an installation, all of then cables that are connected to the device must be free of energy. The device must be protected against inadmissible humidity, vibrations, severe soiling. Make sure that the operation temperature is not exceeded. All input and output lines that are not connected to the supply network must be laid out as shielded and twisted cables. These cables should not be close to the power cables or components. The installation and electrical connections must be carried on by a qualified staff and must be according to the relevant locally applicable regulations.

FRONT PANEL COMMANDS & USAGE

Displaying and Changing Temperature Set Values

• During “Running Mode”, if     key is preset, temperature setpoint value flashes for 3 seconds. While flashing, by pressing  and    keys, temperature value can be changed
• If no key is pressed for 3 seconds or if one of the set keys is pressed again, adjusted set value is saved and the “Running Mode” is entered.

Displaying and Changing Humidity Set Values

• During “Running Mode”, if  key is preset, humidity setpoint value flashes for 3 seconds. While flashing, by pressing    and    keys, humidity set value can be changed
• If no key is pressed for 3 seconds or if one of the set keys is pressed again, adjusted set value is saved and the “Running Mode” is entered.

Locking & Unlocking Keypad

• During “Running Mode”, if    and    keys are pressed together for 2 seconds, L o c message is displayed and the keypad locked. While keypad is locked, if  and  keys are pressed together for 2 seconds,
• u n L message is displayed and the keypad unlocked and “Running Mode” is entered. While keypad is locked, if one of the key is pressed, L o c message is displayed. During keypad locked, temperature and humidity set values can be displayed but can not be changed.

Activating / Deactivating Control Outputs

• During “Running Mode”, if    key is pressed for 2 seconds,C.d,5 message displayed and the control outputs become deactivated and device works as an indicator.
• While control outputs deactivated, by pressing     key for 2 seconds, C.E n B message displayed and device continues to control functions.

Stopping Buzzer Alam

• When an alarm condition occurs, an audible alarm is triggered. By pressing  key, buzzer alarm can be turned off.

Default Settings

• Powered on device by pressing   key  d. p a r message appears on display and device reset to default settings.

Displaying Revision Number

• If    keys are pressed together in “Running Mode”, revision number r.001 appears on display.

ROTATION OUTPUT GRAPHICS

• Rotation process runs sequentially for left and right directions, Rotation process runs consecutively as opened until open duration time(r.on)and closed until close duration time (r. o f F)

Error – Warning – Alarm Definitions

• Sensor Failure. Check the sensor connection. The audible warning is activated. Temperature and humidification outputs are disabled. Analog outputs are zero.
• Temperature Alarm. Audible warning is activated. Current temperature flashes.Outputs are disabled when the upper limit is exceeded.
• Humidification Alarm. Audible warning is activated. Current humidity flashes.Outputs are disabled when the upper limit is exceeded.
• Self tune menu has been entered.
• During self tune menu, indicates that the measured temperature value is greater than 60% of the set value. In this case, self tune process can not be started.
• Self tune process is running.
• Self tune process has been successfully completed.

 

SELF TUNE OPERATION

• In order to start the Self-tune operation, t.Pid parameter must be set to YE5 .
  

PROGRAMMING THE DEVICE (1/2)

Device has two menus as user and hidden menu. User menu is the frequently used parameters and the hidden menu is where all parameters are found. Menus can be transferred between parameters. If SET and keys are pressed together for 2 seconds in the hidden menu, the parameter is transferred to the user menu. Up to 10 parameters can be transferred to the user menu in this way. If SET and keys are pressed together for 2 seconds in the user menu, parameter is removed from user menu.

The marked parameters are valid only for the humidity temperature sensor model with analogue input.

 

PROGRAMMING THE DEVICE (2/2)

MODBUS CONNECTION

• Termination should be accomplished by attaching 120 Ohm resistors to the start and at the end of the communication line.
• Applies to devices with Modbus function.

PARAMETER LIST

PARAMETER LIST
CONFIGURATION PARAMETERS		Minimum	Maximum	Unit Type	Default
Unit	Temperature unit OFF=°C,ON=°F	°C	°f		°C
d.pnt	Decimal indication OFF=no, ON=YE5	no	YE5		no
5nd	Buzzer OFF=no, ON=YE5	no	YE5		no
TEMPERATURE CONTROL PARAMETERS
t.inp	Temperature, input type (:00–~2200mA,               44–~2200m: A,              :00–~1100V,            :11~5–V5) Only available in humidity temperature sensor models with analog output.	0-20	1-5	mA / V	0-20
t.upl	Temperature Upper Limit. Only available in humidity temperature sensor models with analog output.	t.Lol	125	°C / °F	60
t.Lol	Temperature Lower Limit. Only available in humidity temperature sensor models with analog output.	-40	t.upl	°C / °F	-40
t.Hy5	Temperature hysteresis	1	20	°C / °F	2
t.oFF	Temperature of set value	-20	20	°C / °F	0
t.cnt	Temperature control. Lo :Output is active when the temperature is below set value (cooling control), Hi : The output is active when the temperature is above the set value (heating control).	LO	Hi		Hi
t.Pon	Temperature output delay time after power-up	00:00	99:00	min:sec	1:00
t.Pid	PID temperature control selection (:nOon-Off control          YEP5I:D control)	no	YE5		no
t.pb	Proportional band for PID control	0	100	%	14
t.ti	Integral time for PID control	00:00	99:00	min:sec	1:56
t.td	Derivation time for PID control.	00:00	99:00	min:sec	0:35
t.Pcp	Periodic time for PID control	00:00	02:00	min:sec	0:20
HUMIDIFICATION CONTROL PARAMETERS
h.inp	Humidity input type (:00–~2200mA,               44–~2200m: A,              :00–~1100V,            :11~5–V5) Only available in humidity temperature sensor models with analog output.	0-20	1-5	mA / V	0-20
h.upl	Humidity Upper Limit. Only available in humidity temperature sensor models with analog output.	h.Lol	100	%RH	100
h.Lol	Humidity Lower Limit. Only available in humidity temperature sensor models with analog output.	0	h.upl	%RH	0
h.Hy5	Humidity hysteresis	1	20	%RH	2
h.oFF	Humidity of sset value	-20	20	%RH	0
h.cnt	Humidification control. Lo: Output is active when the humidity is below set value (cooling control), Hi : The output is active when the humidification is above the set value (heating control).	LO	Hi		Hi
h.Pon	Humidification output delay time after power-up	00:00	99:00	min:sec	1:00
FAN CONTROL PARAMETERS
F.Cnt	Fan Control (:n Foan not active,         Y:EF5an active)	nO	YE5		YE5
FtYP	Fan output type selection (:t TihmeEfan runs at time-dependent., tEmp: The fan runs at temperature-dependent.)	timE	tEmp		tEmp
F5Et	Fan setpoint value	-40	125	°C / °F	38
F5tA	Fan temperature control (L: To the fan will be activated when the temperature value below the setpoint. , YE5 : The fan will be activated when the temperature value above the setpoint).	Lo	Hi		Hi
FHY5	Fan hysteresis value	1	20	°C / °F	1
F.on	Fan ON time duration.	00:00	99:00	hr:min	1:00
F.oFF	Fan OFF time duration.	00:00	99:00	hr:min	1:00
F.t5P	Fan alarm setpoint value.	t.lol	t.uPL	°C / °F	50
F.AH5	Fan alarm hysteresis.	1	20	°C / °F	2
RIGHT – LEFT Rotating CONTROL PARAMETERS
r.Cnt	Rotating Control (:n Rotating not active,         Y:ER5otating active)	nO	YE5		YE5
r.on	Rotating ON time duration.	00:00	99:00	min:sec	1:00
r.oFF	Rotating OFF time duration.	00:00	99:00	hr:min	1:00
ALARM PARAMETERS
A.Pon	Alarm message display delay time after power up	00:00	99:00	min:sec	1:00
A.ttp	Temperature alarm configuration (AB5 : Absolute alarm, rEF : Relative alarm) A.b5:  Alarm values are AtLo  and AtHi rEF:  Alarm values are Atlo  = t.5Et–A.tlo and A.tHi = t.5Et+A.tHi	Ab5	rEF		Ab5
A.tHi	Temperature upper level alarm (If AttP is changed, this parameter must be re-programmed).	A.tLo	125	°C / °F	125
A.tlo	Temperature lower level alarm (If AttP is changed, this parameter must be re-programmed)	-40	A.tHi	°C / °F	-40
A.tH5	Temperature alarm hysteresis	1	20	°C / °F	2
A.htp	Humidity alarm configuration (AB5 : Absolute alarm, rEF : Relative alarm) A.b5: Alarm values are A.hLo and A.hHi rEF: Alarm values are A.hlo = t.5Et–A.hlo and A.hHi  =   h.5Et+A.hHi	Ab5	rEF		Ab5
A.hHi	Humidity upper level alarm. (If A.htP  is changed, this parameter must be re-programmed)	A.hLo	100	%RH	100
A.hlo	Humidity lower level alarm.(If A.htP is changed, this parameter must be re-programmed)	0	A.hHi	%RH	0
A.hH5	Humidity alarm hysteresis.	1	20	%RH	2
MODBUS COMMUNICATION PARAMETERS
Adr5	Slave device address selection	1	247		1
baud	Communication speed (baud rate)selection	OFF	19.20	Bps	9600

 

ENDA EHTC7425A HUMIDITY AND TEMPERATURE CONTROLLER MODBUS ADDRESS MAP
1.1 HOLDING REGISTERS
Holding Register Addresses		Data Type	Data Content	Parameter Name	Read / Write Permission
Decimal	Hex
0000d	0x0000	word	Temperature set value	t.5Et	R / W
0001d	0x0001	word	Temperature set value Upper Limit	t.uPL	R / W
0002d	0x0002	word	Temperature set value Lower Limit	t.LoL	R / W
0003d	0x0003	word	Temperature upper level alarm	A.tHi	R / W
0004d	0x0004	word	Temperature lower level alarm	A.tlo	R / W
0005d	0x0005	word	Temperature hysteresis	t.HY5	R / W
0006d	0x0006	word	Temperature of set value	t.off	R / W
0007d	0x0007	word	Temperature alarm hysteresis	A.tH5	R / W
0008d	0x0008	word	Humidity set value	h.5Et	R / W
0009d	0x0009	word	Humidity set value Upper Limit	h.upl	R / W
0010d	0x000A	word	Humidity set value Lower Limit	h.lol	R / W
0011d	0x000B	word	Humidity hysteresis	h.Hy5	R / W
0012d	0x000C	word	Humidity of set value	h.off	R / W
0013d	0x000D	word	Humidity upper level alarm	a.hHi	R / W
0014d	0x000E	word	Humidity lower level alarm	a.hlo	R / W
0015d	0x000F	word	Humidity alarm hysteresis	a.hH5	R / W
0016d	0x0010	word	Temperature output delay time after power-up	t.pon	R / W
0017d	0x0011	word	Humidity output delay time after power-up	h.pon	R / W
0018d	0x0012	word	Fan setpoint value.	F5Et	R / W
0019d	0x0013	word	Fan hysteresis.	FHY5	R / W
0020d	0x0014	word	Fan alarm setpoint value.	Ft5p	R / W
0021d	0x0015	word	Fan alarm hysteresis.	FAH5	R / W
0022d	0x0016	word	Fan ON time duration.	f.on	R / W
0023d	0x0017	word	Fan OFF time duration.	F.oFF	R / W
0024d	0x0018	word	Rotating ON time duration.	r.on	R / W
0025d	0x0019	word	Rotating OFF time duration..	r.oFF	R / W
0026d	0x001A	word	Alarm message display delay time after power-up	A.Pon	R / W
0027d	0x001B	word	Integral time for PID control	t.ti	R / W
0028d	0x001C	word	Derivation time for PID control.	t.td	R / W
0029d	0x001D	word	Temperature input type (0:0-20, 1:4-20, 2:0-10, 3:1-5)	t.inp	R / W
0030d	0x001E	word	Humidity input type (0:0-20, 1:4-20, 2:0-10, 3:1-5)	h.inp	R / W
0031d	0x001F	word	Proportional band for PID control	t.pb	R / W
0032d	0x002A	word	Periodic time for PID control	t.pcp	R / W
0033d	0x0021	word	Address selection for slave device.	Adr5	R / W
0034d	0x0022	word	Baud Rate	bAud	R / W
1.2 INPUT REGISTERS
Input Register Addresses		Data Type	Data Content	Parameter Name	Read /Write Permisson
Decimal	Hex
0000d	0x0000	word	Measured temperature value (°C / °F)	—	R
0001d	0x0001	word	Measured humidity value (%RH)	—	R
* Holding and Input Register parameters of type integer, those “signed integer” is defined as the decimal port of and associated with these parameters. (So,”14.0” is a parameter value of “140” will be read in). Relevant parameters for a period of “mm : ss” type ones in seconds, ”hh :mm” while those species defined in minutes.
1.3 COILS
Coil Addresses		Data Type	Data Content	Parameter Name	Read /Write Permisson
Decimal	Hex
00d	0x00	bit	Temperature unit OFF=°C,ON=°F	Unit	R / W
01d	0x01	bit	Decimal indication OFF=no, ON=YE5	D.PNt	R / W
02d	0x02	bit	Buzzer OFF=no, ON=YE5	5nd	R / W
03d	0x03	bit	Temperature control OFF = lo, ON = Relative alarm Hi	t.cnt	R / W
04d	0x04	bit	Humidity control OFF = lo, ON = Relative alarm Hi	h.cnt	R / W
05d	0x05	bit	Fan Control (:n Foan not active,         Y:EF5an active)	F.cnt	R / W
06d	0x06	bit	Fan output type selection (OFF =  time, ON =  tEmp)	F.tYP	R / W
07d	0x07	bit	Fan temperature control (OFF =  Lo, ON =  Hi)	F.5tA	R / W
08d	0x08	bit	Rotating Control (:nRotating not active,         Y:ER5otating active)	r.cnt	R / W
09d	0x09	bit	Temperature alarm configuration OFF = Ab5,  ON = Relative alarm rEF	a.ttp	R / W
010d	0x0A	bit	Humidity alarm configuration OFF = Ab5, ON = Relative alarm rEF	a.htp	R / W
011d	0x0B	bit	PID temperature control selection OFF = yE5, ON = no	t.pid	R / W
1.4 DISCRATE INPUTS
Discrate Inputs Addresses		Data Type	Data Content	Parameter Name	Read /Write Permisson
Decimal	Hex
0000d	0x0000	bit	Temperature relay output status (0=OFF; 1=ON)	—	R
0001d	0x0001	bit	Humidification relay output status (0=OFF; 1=ON)	—	R
0002d	0x0002	bit	Fan relay output status (0=OFF; 1=ON)	—	R
0003d	0x0003	bit	Right Rotating relay output status (0=OFF; 1=ON)	—	R
0004d	0x0004	bit	Left Rotating relay output status (0=OFF; 1=ON)	—	R

Documents / Resources

ENDA EHTC7425A HUMIDITY AND TEMPERATURE CONTROLLER [pdf] User Guide HUMIDITY AND TEMPERATURE CONTROLLER, EHTC7425A

References

• User Manual