Smarteh Longo LMP-1.MP1H Bedienungsanleitung

USER MANUAL

Longo modbus product

LMP-1.MP1H

Modbus RTU Temperature

Humidity Control panel

Version 5

SMARTEH d.o.o. / Poljubinj 114 / 5220 Tolmin / Slovenia / Tel.: +3 6(0) 3 44 00 / e-mail: inf[email protected] / www.smarteh.si

Longo modbus product LMP-1.MP1H

Written by SM RTEH d.o.o.

User Manual

Document Version: 5

March, 2020

Longo modbus product LMP-1.MP1H

ST ND RDS ND PROVISIONS: Standards, recommendations, regulations

and provisions of the country in which the devices will operate, must

be considered while planning and setting up electrical devices. Work

on 230 V C network is allowed for authorized personnel only.

D NGER W RNINGS: Devices or modules must be protected from

moisture, dirt and damage during transport, storing and operation.

W RR NTY CONDITIONS: For all LONGO LMP – if no modifications are

performed upon and are correctly connected by authorized personnel –

in consideration of maximum allowed connecting power, we offer

warranty for 24 months from date of sale to end buyer. In case of

claims within warranty time, which are based on material

malfunctions the producer offers free replacement. The method of

return of malfunctioned module, together with description, can be

arranged with our authorized representative. Warranty does not

include damage due to transport or because of unconsidered

corresponding regulations of the country, where the module is

installed.

This device must be connected properly by the provided connection

scheme in this manual. Wrong installation may result in device

damage, fire or personal injury.

Hazardous voltage in the device can cause electric shock and may

result in personal injury or death.

NEVER SERVICE THIS PRODUCT YOURSELF!

This device must not be installed in the systems critical for life (e.g.

medical devices, aircrafts, etc.).

If the device is used in a manner not specified by the manufacturer,

the degree of protection provided by the equipment may be impaired.

Waste electrical and electronic equipment (WEEE) must be collected

separately!

LONGO LMP-2 complies to the following standards:

EMC: IEC/EN 61000-6-2(EN 50082),

IEC/EN 61000-6-4(EN 50081),

LVD: IEC 61131-2,

Vibrations and climatic-mechanical: EN 60068-2-6,

EN 60068-2-27,

EN 60068-2-29.

Smarteh d.o.o. operates a policy of continuous development.

Therefore we reserve the right to make changes and improvements to

any of the products described in this manual without any prior notice.

M NUF CTURER:

SM RTEH d.o.o.

Poljubinj 114

5220 Tolmin

Slovenia

Longo modbus product LMP-1.MP1H

1 BBREVI TIONS................................................................................1

2 DESCRIPTION...................................................................................2

3 FE TURES.......................................................................................3

4 OPER TION.....................................................................................4

4.1 Operational modes................................................................................. 4

4.2 Functions ............................................................................................ 5

4.3 Parameters........................................................................................... 6

4.4 Modbus RTU variables memory...................................................................8

4.5 Modbus RTU settings memory...................................................................10

5 INST LL TION.................................................................................11

5.1 Connection scheme...............................................................................11

5.2 Mounting frame selection........................................................................13

5.3 Mounting instructions.............................................................................14

5.4 Module labeling....................................................................................15

6 REGUL TION DI GR M......................................................................16

7 TECHNIC L SPECIFIC TIONS................................................................17

8 CH NGES .....................................................................................18

9 NOTES..........................................................................................19

iii

Longo modbus product LMP-1.MP1H

1 ABBREV AT ONS

Sorted by order of appearance in document:

SP Set point

CP Control Panel

TB Touch Button

LCD Liquid crystal display

Longo modbus product LMP-1.MP1H

2 DESCR PT ON

LMP-1.MP1H Modbus RTU Slave compatible control panel (CP) is used for room temperature and

humidity regulation using fan-coil or other heating/cooling devices.

Panel is equipped with temperature and light intensity sensor and four touch buttons (TB).

To increase, decrease temperature set point warmer, cooler TB should be pressed respectively.

Temperature SP is represented with right LCD bar-graph. While CP is in heating mode (temperature

SP is higher than actual room temperature), LCD SP bar is red and while in cooling mode

(temperature SP is lower than actual room temperature), LCD SP bar is blue. If actual temperature

is in SP +/- Dead band range, LCD SP bar is white.

With fan TB speed I, speed II, speed III, UTO or OFF modes of operation can be selected.

Fan mode is represented with left blue LCD bar-graph.

With ECO (economy), OFF and ERR (error) signs on LCD, CP status is represented.

Color back ground LCD picture is possible to customize by using Smarteh LCD Composer software.

Light intensity sensor controls LCD intensity.

It is possible to display actual temperature value (0.5 °C resolution), temperature set point and

humidity (1 % resolution). The real time clock (HH:MM) can also be displayed. Enabling can be done

by MCU enable commands.

ll parameters are accessible on panel's communication port. When panel is connected to Modbus

RTU Master equipment, parameters can be viewed and modified.

LMP-1.MP1H parameters and functions allows adaptation to desired system and regulation diagram.

Panel is able to regulate 2 or 4-pipe systems, depending on 4/2 pipe parameter.

Longo modbus product LMP-1.MP1H

3 FEATURES

Figure 1: LMP-1.MP1H module.

Table 1: Technical data

Room temperature and humidity measurement

2 touch buttons for temperature set point

2 touch buttons for manual fan speed, auto and controller off

10 position LCD bar-graph for temperature set point

4 position LCD bar-graph for manual fan speed, auto and controller off

Light intensity measurement

LCD intensity control

Step-less or 3 step fan motor controlling

Economic function

2/4 pipe heating cooling system supported

Balcony door/window function

Frost protection function

Color LCD display with background picture customization possibility1

1 For LCD background picture replacement, please refer to LCD Composer Help→.

Longo modbus product LMP-1.MP1H

4 OPERAT ON

Basic settings can be entered with panel Touch Buttons (TB).

Modes of operation and parameters can be set from any Modbus RTU Master equipment.

It is advised to press touch-buttons respectively with finger not faster than 1 press per second.

Press should be done with whole finger tip. Brief pressing could not activate the action, because of

protection against the noise and other influence.

4.1 Operational modes

LCD Display “stand-by mode”

The display is normally in this mode, if no TB is pressed in last ~5 seconds.

LED intensity is in correlation with Light intensity measurement (more light - brighter, less light -

darker).

ctual room temperature (0.5 °C resolution) and humidity (1 % resolution) is shown on the screen if

enabled.

LCD Display “SET mode”

First press on any TB will activate the display to “set mode” and LCD intensity will be put to

maximum. No action regarding the pressed TB is done. Further pressings on any TB will make the

change(bar-graphs) regarding the pressed TB.

ctual temperature set-point (regarding the right bar-graph) is shown on the screen if enabled.

Display will return to “stand-by mode” if touch buttons are not pressed for a while (~5 seconds).

Changing operation modes

Request for switching between CP normal and economic operating mode is done with lower left and

right TB pressed simultaneously : switch to economic mode

Request for switching between CP on and off operating mode is done with upper left and right TB

pressed simultaneously : CP switched off

Confirmation of above requested modes is done by Modbus RTU Master equipment by changing the

appropriate command bit (normal/economic, system on/off).

Normal

This is default mode for MP1H module. The control algorithm is executing regarding the parameters.

Economy

If set, controller will start cooling when room temperature will raise above max. temperature set-

point (SP) and stop when temperature will drop 1 °C below max. temp. SP. On the other hand, when

room temperature fall's below min. temp. SP controller will start heating and stop when

temperature will raise 1 °C above min. temp. SP.

In economic mode “ECO” sign appear on LCD.

Off

In this mode panel sends command to switch off all devices: hot valve, cold valve, fan. Temperature

LCD bar becomes white and “OFF” sign appear on LCD.

CP can be turned off using fan TB or System On/Off command. In this case cool, heat and fan

commands are switched off. Cool and heat commands are also switched off when temperature

measured by the panel is inside temperature dead band values (default dead band is 0.5 °C).

Longo modbus product LMP-1.MP1H

Error

In case of CP internal or communication fault, “ERR” sign appear on LCD.

Set

When any of four buttons is pressed more than certain time, “SET” sign appear on LCD and buttons

functioning is enabled. fter “SET” sign is off, push buttons functions are disabled.

4.2 Functions

P controller

Output variable range is 0 to 10000 (0 .. 100 %) in heating and/or cooling mode respectively .

Values are used for analog/digital (0 .. 100 % / I.,II.,III. speed ) output reference for the fan speed

and/or the output for the heat/cool actuator (0 .. 100 % / On-Off valve).

The dynamics of PI calculation is defined by P& I parameters.

Example:

If proportional – P parameter (default = 25) is set to 1 and difference between measured

temperature and temperature set point is changed to +1 °C, the PI output value will change from

example 5000 to 5100. On the other hand if the difference is changed to -1 °C, PI output value will

change from example 5000 to 4900.

If integral – I parameter (default = 5) is set to 1 and difference between measured temperature and

temperature set point is +1 °C, the PI output value will increase every second by 1. On the other

hand if the difference is -1 °C, the PI output value will decrease every second by 1.

2/4 pipe system selection

While 4-pipe (factory default) system active, controller will activate hot water actuator when

heating is required and cool water actuator when cooling is required.

In case 2-pipe system is active, hot water actuator will be operated regardless whether heating or

cooling is needed. Mode of operation (closing, opening) is dependent on Winter/Summer parameter.

Example:

System selected is 2-pipe , summer mode active and SP is lower than room temperature. CP will

start cooling with activating heat valve. In 2-pipe system cool valve is always inactive.

Frost protection

Function activates heat command when room temperature measured by the panel drops below 7 °C.

This function has priority over all control panel integrated functions.

Window open

Panel will operate in special mode if opened window and opened balcony door are detected. This

function is enabled by enabling parameters Balcony door En. or Window En. When this function is

active and one of parameters Window or Balcony Door commands is active, fan will stop and valves

for heating and cooling will close (delay of 1 minute is add with Balcony door command).

Longo modbus product LMP-1.MP1H

4.3 Parameters

If parameter is set to logical “1”, is considered to be active, enabled or set. If parameter has

logical value “0” is considered to be inactive, disabled, or cleared.

Parameter can be status or command or both. When parameter is marked as status this means that

module is sending information to controller. On the other hand command represents request from

module to Modbus RTU Master equipment.

Communication: Normal state is “1”. If off, there is communication error or no communication

established.

Normal/Economic: When set Economic mode is enabled. Default value is “0” therefore normal mode

is selected.

Local/Remote: When “0”, Local mode is selected. In this mode CP uses set point set by TB.

In remote mode, “1”, CP uses set point received from other devices (HMI, Touch Panel,

OT1, ...) through communication channel.

Heat valve: When valve is opened “1” is reported, while “0” stands for closed valve

Cool valve: When valve is opened “1” is reported, while “0” stands for closed valve

System On/Off: If parameter is set to “0” CP functions are executing in normal mode. If set to “1”

Fan speed and all valves are OFF (closed).

Winter/Summer: Used only for two-pipe system to change calculation for Hot valve and Fan speed;

Winter – heating (“0”) to Summer – cooling (“1”)

4/2 pipe: Four-pipe system manages hot and cold water pipes simultaneously. Two-pipe system

manages only one pair of pipes (one valve, pump). Operation in two-pipe system is therefore

dependent on Winter/Summer (Change-over) parameter.

“0” = Four pipe system

“1” = Two pipe system

Fan speed I.: When this parameter is “1”, actual fan speed is I.

Fan speed II.: When this parameter is “1”, actual fan speed is II.

Fan speed III.: When this parameter is “1”, actual fan speed is III.

Fan speed mode : This parameter determines fan speed adjustment mode:

“0”: Manual

“1”: uto

Balcony door En.: When switch for detecting opened balcony door is connected to the system, this

function should be enabled (“1”).

Balcony door switch: Parameter reports whether door are closed or opened

“1”: closed

“0”: opened

Window En.: When switch for detecting opened window is connected to the system, this function

should be enabled (“1”).

Window switch: Parameter reports whether window is closed or opened

“1”: closed

“0”: opened

Max. temp.: denotes max. SP temp. which is scaled to top of LCD temperature bar

Min. temp.: denotes min. SP temp. which is scaled to bottom of LCD temperature bar

P regulation par.: Proportional parameter for PI calculation algorithm on CP

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