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RAM 712 KNX

room thermostat for surface-mounted and flush-mounted installation

theben

Version: Dec-10 (subject to change) Page 15 of 65

•

Objects 11, 14 "Switching ON/OFF, priority, send value, temperature value, call/store
light scene, send, step / stop, height position , switching LED "

To use inputs E1 and E2 the external interface must be configured on the

settings,

parameter page

active

The function and type of object are dependent on

function of input

and

object type

parameters.

Table 8

Input function

Function

Description

Switch/key

Switching ON/OFF

Sends 1 bit switching commands in EIS 1

format

Priority

Sends priority telegram in 2 bit format

Send value

Sends a value between 0 and 255

Send temperature
value

Sends a temperature value in 2 byte format

Dimming

Switching ON/OFF

Switches dimmer on and off

Blinds

Step / stop

Sends 1 bit "UP" or "DOWN" telegrams.

Value

Valuator short/long

Sends 2 different 8 bit values depending on

length of time keystroks

Value for light
setting

Call/save light scene via 8 bit telegram

Valuator for blinds

Sends an 8 bit percentage value for positioning

blinds

Control LED

Receives 1 bit telegram for controlling LED

•

Objects 12, 15 "Brighter, darker, brighter/ darker, UP, DOWN, UP/DOWN, slat
position"

The function and the type of object also depend on

input function

parameter.

Table 9

Input function

Function

Description

Switch/key

Not available

Dimming

Brighter , darker

Brighter / darker

4 bit dimming commands for the dimming
actuator in EIS 4 format

Blinds

UP, DOWN,
UP/DOWN

1 bit motion commands for the blinds actuator
in EIS 7 format

Value for blinds

Slat position

Sends 1 byte telegram for positioning slats

Control LED

Not available

Содержание RAM 712 KNX

Страница 1: ...om thermostat for surface mounted and flush mounted installation theben Version Dec 10 subject to change Page 1 of 65 RAM 712 KNX room thermostat for surface mounted and flush mounted installation RAM...

Страница 2: ...setpoint values 29 3 4 8 Inputs E1 E2 30 4 Start up 41 4 1 Installation in a flush mounted socket 41 4 2 Actuators to control heating and cooling 42 4 2 1 Heating control variable 42 4 2 2 Cooling con...

Страница 3: ...of the PI control 61 7 Glossary 62 7 1 Continuous and switching control 62 7 2 Hysteresis 62 7 2 1 Negative hysteresis 62 7 2 2 Positive hysteresis 63 7 3 Dead zone 63 7 3 1 Case 1 Heating and coolin...

Страница 4: ...ol blinds The blinds and dimmer channels can also be controlled with a single key single key operation Possible actuators include Cheops drive HMG 4 HMT 6 HMT 12 The RAM 712 has four operating modes t...

Страница 5: ...hange via presence and window objects Heating and cooling operation Infinite regulation through continuous actuating value 2 binary inputs for conventional keys switches or for blinds dimmer control A...

Страница 6: ...ower supply Bus voltage Permitted operating temperature 5 C 45 C Current draw from bus voltage Max 10 mA Bus connection Bus terminal Protection class III in accordance with EN 60730 1 Protection ratin...

Страница 7: ...de 3 2 Parameter pages Table 1 Function Description Settings Selection of control functions Standard and user defined settings activation of the external interface Setpoint values Setpoint value afte...

Страница 8: ...ndby 1 bit EIS 1 4 Input for presence signal Presence 1 bit 1 Comfort Comfort 1 bit 5 Input for window contact Window position 1 bit 1 Frost protection Frost heat protection 1 bit 6 Report current ope...

Страница 9: ...ue Input 1 value EIS 14 1 byte Send temperature value Input 1 temperature EIS 5 2 byte Switching ON OFF Input 1 dimming 1 bit EIS 1 Step stop Input 1 blinds 1 bit EIS 1 Send value Input 1 value 1 byte...

Страница 10: ...2 bytes Switching ON OFF Input 2 dimming 1 bit EIS 1 Step stop Input 2 blinds 1 bit EIS 1 Send value Input 2 valuator 1 byte EIS 14 Call save light scene Input 2 value 1 byte DTP 18 001 Height positio...

Страница 11: ...erature current setpoint value can be adjusted from the base setpoint value by this differential The following applies in comfort mode heating Current setpoint value object 10 Base setpoint value manu...

Страница 12: ...ng mode is activated The details in brackets refer to cooling mode old Comfort night frost 1 bit object Night or standby operating mode can be activated 0 standby 1 night Object 4 Presence comfort The...

Страница 13: ...via this object 1 on this object activates the frost heat protection operating mode old Comfort night frost Frost heat protection 1 on this object activates the frost protection operating mode The he...

Страница 14: ...epends on the type of control selected continuous or switching on the cooling control page Note Object 8 is not available With the setting heating control only parameter page settings as cooling funct...

Страница 15: ...alue in 2 byte format Dimming Switching ON OFF Switches dimmer on and off Blinds Step stop Sends 1 bit UP or DOWN telegrams Value Valuator short long Sends 2 different 8 bit values depending on length...

Страница 16: ...Inputs E1 or E2 are locked via this object The resulting response can be set individually on the parameter pages 1 disabled 0 cancel lock Object 17 Scene control Scenes can be saved or called via this...

Страница 17: ...Table 10 Designation Values Application Control Standard For simple applications User defined Enables selection of control functions Control functions used User defined control Heating control only He...

Страница 18: ...rated time 180 minutes Bandwidth 4 k LED function LED function on circuit board Always off LED is not used With heating ON Should light in heating mode Always ON Should light permanently Sending heati...

Страница 19: ...ysteresis can reduce to 0 K over prolonged periods of switch off At the next switch on it is reset to the configured value User defined parameters Proportional band of heating control 1 K 15 K 2 K 2 5...

Страница 20: ...heating operation and a reduction of 2K controls RAM 712 at a setpoint value of 21 2 19 C Reduction in night mode during heating 3 K 4 K 5 K 6 K 7 K 8 K By what value should the temperature be reduced...

Страница 21: ...one are sent respectively 21 C 2K 23 C Transmits average value between heating and cooling Same value in comfort operation mode during both heating and cooling operation i e Base setpoint value half d...

Страница 22: ...set function Applicable for the received values above object 1 manual setpoint value offset Minimum valid base setpoint value 5 C 6 C 7 C 8 C 9 C 10 C 11 C 12 C 13 C 14 C 15 C 16 C 17 C 18 C 19 C 20 C...

Страница 23: ...21 3 C 20 5 C is measured To reduce the temperature of RAM 713 to 20 5 C 8 i e 8 x 0 1K must be entered Transmission of the actual value Not in the event of change With change of 0 2 K With change of...

Страница 24: ...Fan coil unit Integrated time 180 minutes Bandwidth 4 k 2 point control Hysteresis of 2 wire control for cooling 0 3 K 0 5 K 0 7 K 1 K 1 5 K 2 K 3 K 4 K 5 K 6 K Interval between the switch off point s...

Страница 25: ...n 210 min 225 min Only for PI control The integrated time determines the reaction time of the control It lays down the increase that the output control variable is raised by in addition to the P share...

Страница 26: ...The cooling mode can only be activated on the bus via object 9 1 cool Cooling mode remains off for as long as this object is not set Output of the cooling actuating value on separate object object 8...

Страница 27: ...reset Frost protection Night time temperature reduction Standby Comfort Operating mode after start up or reprogramming Type of presence sensor to Obj 4 The presence sensor activates the comfort operat...

Страница 28: ...712 to change via presence object from night frost mode to comfort mode again for a set length of time The time limit is omitted if the device was previously in standby mode Comfort operation is only...

Страница 29: ...2 point control See glossary Dead zone Increase in standby mode during cooling 0 K 0 5 K 1 K 1 5 K 2 K 2 5 K 3 K 3 5 K 4 K 5 K The temperature is increased in standby mode during cooling operation In...

Страница 30: ...meters are available Table 17 Designation Values Description Debounce time 30 ms 50 ms 80 ms 100 ms 200 ms 1 sec 5 sec 10 sec In order to avoid a disruptive switching due to debouncing of the contact...

Страница 31: ...le off 2 10bin For value object type Any value between 0 and 255 can be sent These values can also be used as percentage values or as HVAC commands None No response 0 0 corresponds to HVAC mode Auto 0...

Страница 32: ...ould be sent cyclically Cycle time 2 minutes 3 minutes 5 minutes 10 minutes 15 minutes 20 minutes 30 minutes 45 minutes 60 minutes At what time interval are the cyclic telegrams to be sent again React...

Страница 33: ...ing edge Response configured as for falling edge Update after 5 sec Update after 10 sec Update after 15 sec The current channel status is sent after set time has elapsed After 5 sec same as after risi...

Страница 34: ...length of time the keystrokes short long keystroke dimming or ON OFF telegrams to the dimmer see below The following parameters are available Table 19 Designation Values Description Debounce time 30 m...

Страница 35: ...ng keystroke the dimming value is 100 Increased or decreased until the key is released 50 25 12 5 6 3 1 5 Increased by the selected value or lowered Reaction when setting the lock Ignore lock Disable...

Страница 36: ...are available Table 20 Designation Values Description Debounce time 30 ms 50 ms 80 ms 100 ms 200 ms 1 sec 5 sec 10 sec Debouncing of the connected key see above switch key function Operation Single k...

Страница 37: ...own command Reaction when cancelling the lock No reaction when cancelling the lock Only respond when the lock is set Up Send move up command Down Send move down command Response after restoration of t...

Страница 38: ...two different values depending on whether the keystroke for a long or short period Value for light setting Send a scene number between 0 and 63 Valuator for blinds Sends a height telegram and a slats...

Страница 39: ...ds type of value 2 8 m 0 100 in 5 increments Sends a positioning telegram to the blinds shutter actuator Slats 0 100 in 5 increments What slat position should be sent to the actuator together with the...

Страница 40: ...us supply As with short keystroke send immediately Same telegram as configured for short keystroke Send without delay As with short keystroke after 5 seconds As with short keystroke after 10 seconds A...

Страница 41: ...the white housing for installation in a flush mounted socket IMPORTANT The device must not be installed if the flush mounted socket is connected to mains Procedure Remove control from base of housing...

Страница 42: ...he control variable is sent to one of the following heating actuators which controls one or more thermal positioning actuators HMG 4 order no 491 210 HME 4 order no 491 0 211 HMT 6 order no 490 273 HM...

Страница 43: ...ction mode A presence detector is used for presence recognition The presence telegram is only sent after a switch on delay so that the heating is not activated if the room is only occupied for a short...

Страница 44: ...712 KNX room thermostat for surface mounted and flush mounted installation theben Version Dec 10 subject to change Page 44 of 65 5 1 3 Overview Obj 7 Obj 3 Obj 11 Obj 5 Obj 0 E1 Obj 9 Obj 4 Obj 0 Figu...

Страница 45: ...M 712 Comments Object name No Object name 11 Input 1 switching 5 Window position Object 11 sends the window status to object 5 input for window contact via the bus Both objects are connected to each o...

Страница 46: ...ode after reset Standby Presence sensor type to obj 4 Presence detector Input 1 Input function Switch key Debounce time 100 ms Object type Switching 1 bit Response to rising edge ON OFF Response to fa...

Страница 47: ...age Parameters Setting General information Operating mode Master in individual switching mode Presence output Active Normal or test operating mode Normal operation Presence output Presence switch on d...

Страница 48: ...e 29 Operating mode preset Object 3 Presence Object 4 Window status Object 5 Current operating mode object 6 Any Any 1 Frost heat protection Any 1 0 Comfort Comfort 0 0 Comfort Standby 0 0 Standby Nig...

Страница 49: ...mode in the evening In holiday periods frost heat protection is selected on another channel via object 5 Object 4 comfort is connected to a presence detector If a presence is detected RAM 712 switches...

Страница 50: ...ht Base setpoint value setpoint value offset reduction in night mode Frost heat protection configured setpoint for frost protection mode Example Heating in comfort mode Parameter page Parameters Setti...

Страница 51: ...Example Cooling in comfort mode The room temperature is too high and RAM 712 has switched to cooling operation Parameter page Parameters Setting Setpoint values Basic setpoint value after loading the...

Страница 52: ...object 1 The differential between the setpoint value offset and the base setpoint value is sent by object 10 at each change e g 1 00 The offset limits are set on the setpoint values parameter page wit...

Страница 53: ...in night mode of 4K the current setpoint value in night mode is 22 C 4K 18 C During the day in comfort mode the current setpoint value is 22 C providing the cooling operation is not active The formati...

Страница 54: ...ns and restored later at any time The current operating mode is allocated to the appropriate scene number when a scene is saved The previously saved operating mode is reactivated when a scene number i...

Страница 55: ...3 82 130 35 A2 162 4 83 131 36 A3 163 5 84 132 37 A4 164 6 85 133 38 A5 165 7 86 134 39 A6 166 8 87 135 40 A7 167 9 88 136 41 A8 168 10 89 137 42 A9 169 11 8A 138 43 AA 170 12 8B 139 44 AB 171 13 8C 1...

Страница 56: ...35 5 04 4 37 24 36 6 05 5 38 25 37 7 06 6 39 26 38 8 07 7 40 27 39 9 08 8 41 28 40 10 09 9 42 29 41 11 0A 10 43 2A 42 12 0B 11 44 2B 43 13 0C 12 45 2C 44 14 0D 13 46 2D 45 15 0E 14 47 2E 46 16 0F 15...

Страница 57: ...nputs have no direct influence on the thermostat function They can however be linked via a common group address with the presence or with the window object for example The following functions can be p...

Страница 58: ...ollowing devices can be used as actuators for switching blinds or dimmers Table 35 Designation Order no Description DMG 2 491 0 220 MiX series dimmer actuator DME 2 491 0 221 Upgrade for DMG 2 and all...

Страница 59: ...h a vessel The filling level of the vessel denotes the room temperature The water supply denotes the radiator output The heat loss from the room is illustrated by a curve In our example the maximum su...

Страница 60: ...tion bandwidth x 100 The table below shows the response and therefore also the limits of the P control Table 36 Filling level Control variable Supply Loss Increase in filling level 15l 100 4 l min 1 l...

Страница 61: ...onger the setpoint value is not reached the more this value increases This increase is time controlled over the so called integrated time With this calculation method the actuating value does not chan...

Страница 62: ...l influences the range of the dead zone Without hysteresis the control would switch on and off continuously provided the temperature is within the setpoint value range 7 2 1 Negative hysteresis Heatin...

Страница 63: ...e temperature falls below 20 C 7 3 Dead zone The dead zone is a buffer area between heating and cooling operation Neither heating nor cooling takes place within this dead zone Without this buffer zone...

Страница 64: ...g setpoint value to 25 C 7 3 3 Case 3 Heating with continuous control and cooling with 2 point control Cooling setpoint value 25 C Cooling hysteresis 1 K DEAD ZONE 4 K Heating setpoint value 20 C The...

Страница 65: ...value for frost protection mode 2 Max and min valid base setpoint values 8 The setpoint value is replaced by the setpoint value for heat protection mode 3 Manual setpoint offset 9 Setpoint value afte...

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