Controlli W500H Manuel utilisateur

Rev. d 01/12 1 DMP052E

User’s manual

W500H/H4

W500HMB/HMB4

Temperature and humidity controller

CONTROLLI

16010 SANT’OLCESE Genova – Italy

Tel. +39 01073061 Fax :+39 0107306870/871

E-mail: [email protected]

Web: www.controlli.eu

ISO9000

Rev. d 01/1 2 DMP052E

TABLE OF CONTENTS

INTRODUCTION................................................................................................................................................3

USER INTERFACE ............................................................................................................................................4

FUNCTION DESCRIPTION ...............................................................................................................................5

GENERAL.......................................................................................................................................................5

FOR ANALOGUE OUTPUT 1 IT IS POSSIBLE TO SELECT: ...................................................................5

FOR THE 1 ON/OFF DIGITAL RELAY OUTPUT IT IS POSSIBLE TO SELECT: .....................................6

FOR ANALOGUE OUTPUT 2 IT IS POSSIBLE TO SELECT: ...................................................................6

FOR THE DIGITAL RELAY OUTPUT 2 IT IS POSSIBLE TO SELECT:....................................................8

CONTROL TYPE............................................................................................................................................9

SET-POINT COMPENSATION.................................................................................................................... 10

MIN/MAX HUMIDITY LIMITS ON A1 AND D1 LOOPS............................................................................... 11

OPERATING MODES.................................................................................................................................. 12

MANUAL OVERRIDE KEY FOR THE OPERATING MODE....................................................................... 12

CLOCK ENABLE WITH TIME SCHEDULE.................................................................................................13

OUTSIDE DIGITAL ENABLE....................................................................................................................... 13

FACTORY DATA LOAD .............................................................................................................................. 13

STORING DATA IN PERMANENT MEMORY ............................................................................................ 14

LOADING DATA FROM PERMANENT MEMORY...................................................................................... 14

REMOTE SET.............................................................................................................................................. 14

LINKBUS COMMUNICATION ..................................................................................................................... 14

ENTHALPY COMPARISON WITH OUTDOOR HUMIDITY SENSOR FROM ANOTHER W500H ............ 15

MODBUS COMMUNICATION..................................................................................................................... 16

USE OF SUPERVISION OUTSIDE SENSOR FOR COMPENSATION...................................................... 16

ERROR SIGNALLING.................................................................................................................................. 16

FRONT PANEL AND DATA ACCESS MENU................................................................................................. 17

PARAMETER CONFIGURATION MENU....................................................................................................18

Parameters Loop PA1 - Mode A1............................................................................................................. 18

Parameters Loop PA1 - Mode A2............................................................................................................. 19

Parameters Loop PA1 - Mode A3 / Mode A4........................................................................................... 19

Parameters Loop Pd1 - Mode D1............................................................................................................. 20

Parameters loop Pd1- Mode D2............................................................................................................ 20

Parameters Loop Pd1- Mode D3 .......................................................................................................... 21

Sequence Parameters Pd1and Pd2- Mode D4................................................................................. 21

Parameters Loop PA2- Mode A1 .......................................................................................................... 21

Parameters Loop PA2- Mode A2 .......................................................................................................... 22

Parameter Loop PA2- Mode A4............................................................................................................ 22

Parameter Loop PA2- Mode A3............................................................................................................ 23

Parameter Loop Pd2 - Mode A1........................................................................................................... 23

Parameter Loop Pd2 - Mode A2........................................................................................................... 24

Parameter Loop Pd2 - Mode A3........................................................................................................... 24

PROGRAMME MENU FOR OPERATING MODES AND TIME SCHEDULES........................................... 25

Setting - Analogue output 1 / 0-10Volt PA1 Loop............................................................................ 26

Setting - Analogue output 2 / 0-10Volt PA2L o o p .............................................................................. 27

Setting - Relay Digital output 1 Loop Pd1 ............................................................................................. 27

Setting - Relay Digital output 1 Loop Pd1 ............................................................................................. 28

Setting - Relay digital output 2 Pd2 – 1, 2 and 3 operating mode ........................................................ 28

Setting - Relay digital output Pd1and Pd2 – 4 operating mode......................................................... 29

MENU DIAGRAM......................................................................................................................................... 30

TEMPERATURE CONTROL PARAMETER TABLES (LEVEL 1)................................................................... 31

HUMIDITY CONTROL PARAMETER TABLES (LEVEL 1)............................................................................. 32

TABLES OF OPERATING MODES AND TIME SCHEDULES (LEVEL 2).................................................. 33

SYSTEM APPLICATIONS............................................................................................................................... 35

Rev. d 01/1 3 DMP052E

INTRODUCTION

The temperature and relative humidity controller for AHU is provided with four control loops, two

analogue with 0-10Vdc output loops and two on/off hysteresis with relay output loops with

exchange contact.

All loops have independent control parameters and set points.

All the four loops share the three sensors (control, compensation and limit) coming from:

- ST temperature control sensor

- SC compensation sensor

- Relative humidity sensor, SH limit and/or compensation

The controller is also provided with two digital dry-contact inputs which can be used for outside

enable or summer/winter changeover functions.

Each loop can control its own output independently from the other using four different operating

modes.

The controller is characterized by a user interface composed of a 3 ½ digit FND display, of five

buttons and of twelve LEDs located on the front membrane.

Data on display depend on sensor presence and on enabling the various functions.

The controller is also provided with a two-wire local bus called “LinkBus”

Through the local bus port it is possible to connect up to 4 different devices with other devices of

the same W digital series with the purpose to share the sensor and the operating mode.

The local bus also allows the W500H to be supervised if at least one W500TMB or W500HMB is

connected.

The W500HMB version differs from the basic W500H for its on-board RS485 ModBus

communication interface and for the real time clock with daily and weekly schedules.

The W500HMB allows supervision for itself and for the other W500H or W500T devices (max 3)

connected to it through a LinkBus and shares with them the set time schedules.

NOTE: A pressure sensor on the analogue loop 2 or digital loop 2 can be used in place of the humidity

sensor.

Electrical connections:

1 GND 13 230 Vac F (W500H/HMB)

or 24 Vac F (W500H4/HMB4)

2 SH 14 230 Vac N (W500H/HMB)

or 24 Vac N (W500H4/HMB4)

3 SC 15 Rel 1 CO

4 ST 16 Rel 1 NA

5 GND 17 Rel 1 NC

6 Di1 18 Rel 2 CO

7 Di2 19 Rel 2 NA

8 LinkBus + 20 Rel 2 NC

9 LinkBus -

10 Bus 485 + 22 Ao1

11 Bus 485 – W500HMB 23 GND

12 GND 485 ONLY 24 Ao2

Legend:

ST: PTC temperature control sensor

SC: PTC outside compensation sensor

SH: 0-10Vcc humidity control sensor

U1: User 1 (ex. Fan, circulation pump, on/off valve, etc.)

U2: User 2 (ex. on/off humidifier, on/off damper, etc.)

S1: 0 – 10 Volt proportional actuator

S2: 0 – 10 Volt proportional actuator

Rev. d 01/1 4 DMP052E

USER INTERFACE

The device is characterized by a user interface

composed of a 3 ½-digit FND display, five keys and

twelve LEDs located on the front membrane. The

information displayed on screen depends on whether

the sensors are present or not and on the related

function enable. Using the buttons it is possible to

navigate a cascade menu, which allows configuring

individually the functions to be assigned to the 4

independent outputs.

Description of keys

Button Up to increase values.

Used both for parameter modification and for moving inside the menus.

Button Down to decrease values.

Used both for parameter modification and for moving inside the menus.

Cancel and menu exit

Parameter programming and confirmation

Operating mode override

Led description

Ao1 Led associated to analogue output 1, it is on during data display.

Ao2 Led associated to analogue output 2, it is on during data display.

ST Led associated to temperature control sensor value.

SC Led associated to compensation sensor value.

SH Led associated to humidity sensor value.

DI1 Led associated to digital input 1, it is on when the input is active (closed contact).

DI2 Led associated to digital input 2, it is on when the input is active (closed contact).

Rel1 Led associated to relay output 1, it is on when the output is active.

Rel2 Led associated to relay output 2, it is on when the output is active.

@Led associated to anomaly signal.

Ovr Led associated to override status of Operating mode

Mode Led associated to Operating mode.

On Comfort

Blinking Reduced

Off Stop

Rev. d 01/1 5 DMP052E

FUNCTION DESCRIPTION

GENERAL

First of all it is necessary to establish the operating mode for each control loop.

The operating mode is the function to be assigned to a specific output. The output of each loop

depends on the sensor which carries out control.

For the A1 and D1 loops it is possible to set temperature sensor ST, whilst for A2 and D2 loops it is

possible to set either relative humidity sensor or enthalpy sensor (temperature only or both

temperature and humidity; in the latter case two controllers are needed).

A1 and D1 loops control temperature sensor ST for Ao1 and Rel1 outputs.

Heating control means that the output moves in an inversely proportional way with respect to the

value measured by the temperature sensor, vice versa is the meaning of cooling control.

Operating modes are:

FOR ANALOGUE OUTPUT 1 IT IS POSSIBLE TO SELECT:

MODE A1: HEATING LOOP

If the output value has to increase when the control sensor

value drops under the operating set.

When the set point is achieved the output is zero.

If the control temperature drops under the SPC Heating Set

Point minus BPC Heating Proportional Band the relevant

analogue output goes to 100% equivalent to 10 Vdc.

MODE A2: COOLING LOOP

If the output value has to increase when the control sensor

value exceeds the operating set.

When the set-point is achieved the output is zero.

If the control temperature goes above the SPF Cooling Set

point plus BPF Cooling Proportional Band the relevant

analogue output goes to 100% equivalent to 10 Vdc.

MODE A3: HEATING / COOLING LOOP FROM S/W

CHANGEOVER

If the Heating or Cooling Loop is enabled through the

contact input (D.i.2) in order to carry out a season

changeover. When the D.i.2 contact is open, the Loop

passes to “Heating” control type; under closed contact

the Loop passes to “Cooling” control type. The two

“Set” (SPC, SPF) and the two proportional bands (BPC,

BPF) are independent.

MODE A4: HEATING LOOP / COOLING IN SEQUENCE

If it is required to exploit the 0-5 6-10 V control characteristic of

CONTROLLI actuators to realize a Heating Cooling sequence

with a unique 0–10 Vdc analogue output. When the set point is

achieved the output is 5,5 Vdc. If the control Temperature goes

below the Heating Set Point value (SPC) minus Heating

Proportional Band (BPC), the relevant analogue output goes to

0 Vdc. If the control Temperature goes above the value the

Cooling Set Point value (SPF) plus Cooling Proportional Band

(BPF) the relevant analogue output goes to 10 Vdc.

In this case, if a heating-Cooling sequence is required, the two actuators must be connected in

parallel to the same output selecting the range 0 – 5 Vdc with reverse action for the actuator, which

manages the heating channel, while for the actuator managing the Cooling channel, it is necessary

to select the range 6 – 10 Vdc with direct action.

Rev. d 01/1 6 DMP052E

FOR THE 1 ON/OFF DIGITAL RELAY OUTPUT IT IS POSSIBLE TO SELECT:

MODE D1: ON/OFF HEATING HYSTERESIS

If the output value must turn to ON when the value of the Control

Sensor goes below the Operating Set minus the Hysteresis

band.

When the set point is achieved, the relay output is OFF.

MODE D2: ON/OFF COOLING HYSTERESIS

If the output value must turn to ON when the control sensor

value goes above the Operating Set plus the Hysteresis band.

When the Set Point is achieved, the relay output is OFF.

MODE D3: HEATING/COOLING HYSTERESIS FROM S/W

CHANGEOVER

If it is required to enable the heating or cooling hysteresis

through the contact input (D.i.2) to carry out a season

changeover. When the D.i.2 contact is open, the Loop passes to

“Heating” control type; under closed contact the Loop passes to

“Cooling” control type.

The two “Set” (SPC, SPF) and the two proportional bands (BPC,

BPF) are independent.

MODE D4: ON/OFF DELAY

If it is required to enable or disable a relay output with a

specified delay at stop and/or start.

The delay is considered with respect to an event, which

can be:

- Operating Mode (NM and RF => ON, FA => OFF), if a

stop and/or start delay of a device following the

Operating Mode is required.

- The status of one of the two digital inputs (D.i.1 or

D.i.2), if it is required a stop and/or start delay of a device following the status of one or both dry

contact inputs.

- The status of the other Relay output, if it is required a stop and/or start delay of a device

following the status of the other digital relay output.

The ON Delay (RA) and the Off Delay (RS) can be set individually in seconds.

The events generating the changeover are according to an “OR” logic, which means that, if more

than one event condition is enabled, it is sufficient that only one is true.

The maximum allowed delay is 30 minutes.

A2 and D2 loops control, for the Ao2 and Rel2 outputs, the SH humidity sensor only through the

operating modes A1, A2 and A4, whilst in the operating mode A3 they control enthalpy only in

temperature or complete enthalpy (temperature and humidity) if the outdoor humidity signal

through LinkBus is supplied (see page 15).

FOR ANALOGUE OUTPUT 2 IT IS POSSIBLE TO SELECT:

Mode A1: HUMIDITY LOOP

If the output value must increase when the SH Humidity Sensor

value drops under the set point. When the set point is achieved, the

output is zero. If the SH Humidity Sensor value drops under the SPH

Humidity Set point minus BPH Humidity Proportional Band, the

relevant analogue output goes to 100% equivalent to 10Vdc.

Rev. d 01/1 7 DMP052E

MODE A2 DEHUMIDIFICATION LOOP

If the output value must increase when the SH Humidity Sensor value goes above the operating

set. When the set point is achieved the output is zero.

If the SH Humidity Sensor value exceeds the SPD Dehumidification Set Point value plus BPD

Dehumidification Proportional Band, the relevant analogue output goes to 100% equivalent to

10Vdc.

MODE A3 ENTHALPY CONTROL WITH SUMMER/WINTER CHANGEOVER SET

It enables the Enthalpy Control with summer/winter changeover set point through (D.i.2) contact.

By D.i.2 open contact, the loop goes in Enthalpy control with winter set-point, by closed contact,

loop goes in Enthalpy control with summer set-point.

The two sets (STI) winter and (STE) summer are independent.

The (BEI) internal and (BEE) external proportional bands are always the same both in winter and in

summer, as well as the (LLA) minimum opening limit value.

By outdoor Humidity signal it is necessary to set also SHI and SHE winter and summer humidity

set points and (bPH) humidity band.

The comparison between internal and external enthalpy must last for at least a time exceeding 15

min. to avoid output hunting when the enthalpy values are almost the same.

MODE A4: HUMIDIFICATION/DEHUMIDIFICATION

SEQUENCE LOOP

To be selected when it is required to exploit the 0-5, 6-10

control characteristics of Controlli actuators to perform a

humidification/dehumidification sequence with a unique 0-10

Vdc output, driving in sequence proportional humidifier and

cooling valve.

When the set point value is achieved, the output is 5.5 Vdc

When the control humidity drops under the (SPH) humidity set

point minus (BPH) Humidity Proportional Band, the relevant

analogue output is 0 Vdc.

When the control humidity exceeds the (SPD) Dehumidification Set Point value plus (BPD)

Dehumidification Proportional Band, the relevant analogue output is 10 Vdc.

The two actuators must be connected in parallel to the same output setting the range 0-5Vdc with

reverse action for the actuator which drives the proportional humidifying channel, whilst for the

actuator which drives the cooling channel it is necessary to select the range 6-10Vdc with direct

action.

Rev. d 01/1 8 DMP052E

FOR THE DIGITAL RELAY OUTPUT 2 IT IS POSSIBLE TO SELECT:

MODE D1: ON/OFF HUMIDIFICATION HYSTERESIS

If the output value must turn to ON when the value of HHumidity Sensor drops under (SPH)

operating humidity set value minus (BPH) hysteresis band.

When the set point is achieved the relay output is OFF.

MODE D2: ON/OFF DEHUMIDIFICATION HYSTERESIS

If the output value must turn to ON when the value of H

Humidity Sensor exceeds the SPD operating dehumidification

set point plus (BPD) hysteresis band.

When the set point is achieved the relay output is in OFF status.

MODE D3: ENTHALPY HYSTERESIS WITH S/W

CHANGEOVER SET

If the enthalpy control with S/W changeover set through (D.i.2) contact input is required.

By D.i.2 open contact, the loop goes to enthalpy control with winter set-point; by closed contact the

loop goes to enthalpy control with summer set-point.

The two sets STI winter and STE summer are independent.

The (BEI) internal and (BEE) external proportional bands are always the same both in winter and in

summer.

By outdoor humidity signal it is necessary to set also SHI and SHE winter and summer humidity set

points and (bPH) humidity band.

The comparison between internal and external enthalpy must last for at least 15 min. to avoid

output hunting when enthalpy values are almost the same.

MODE D4: ON/OFF DELAY

If it is required to enable or disable a relay output with a specified stop and/or start delay.

The operation is the same as described for mode D4 of the Relay 1 digital output (see page 6).

Rev. d 01/1 9 DMP052E

CONTROL TYPE

Once the OPERATING MODE is stated, it is necessary to set the CONTROL TYPE, i.e. the control

criteria used by the OPERATING MODE. The control type can be:

- Proportional or Proportional + Integral (P or P+I)

- With fixed operation set point or compensated in function of Compensation Sensor.

- With or without minimum and/or maximum limit in function of Limit Sensor.

PROPORTIONAL CONTROL (P)

Given a SET POINT (required value), the difference between this value and the VALUE detected

by the Control Sensor is called ERROR.

A proportional control is obtained when the value of a controller output moves proportionally to the

ERROR. The PROPORTIONAL BAND determines the quantity of the action (gain) in function of

ERROR. When the ERROR is equal to the PROPORTIONAL BAND the output value is equal to

100 %.

Setting a too small PROPORTIONAL BAND can generate oscillation phenomena of the output.

Setting an excessively wide PROPORTIONAL BAND can generate a change from the SET of the

controlled temperature.

PROPORTIONAL CONTROL + INTEGRAL (P+I)

If an I action is added to P action, the result is a more accurate control, which takes into account

the error variation in time. It is necessary to define an INTEGRATION TIME, which states the time,

after which the Proportional action is restored. Generally, INTEGRAL action is necessary when the

PROPORTIONAL BAND allows a variation, conferring to the INTEGRAL action the task to cancel

the remaining error.

The two 0-10 Vdc analogue outputs can be P or P+I, therefore, the parameters to be set for each

output will be:

- SET POINT (with fixed-point control)

- PROPORTIONAL BAND

- INTEGRATION TIME (if I action is enabled)

For analogue output 2 in A3 operation mode (enthalpy control with s/w changeover set), control

can be proportional only, and not P+I.

The 2 relay outputs can be only P, the parameters to be set will be:

- SET POINT (with fixed-point control)

- HYSTERESIS BAND

For the analogue output 1 and the relay output 1 it is used the temperature sensor connected to ST

terminal if not otherwise specified (“sharing sensors” see paragraph concerning LinkBus).

If the temperature sensor is not connected correctly to ST terminal or is not shared correctly with

other devices Led @ is lighted.

For the analogue output 2 and the relay output 2 it is used the humidity sensor connected to SH

terminal if not otherwise specified (“sharing sensors” see paragraph concerning LinkBus)

If the humidity sensor is not correctly connected to SH terminal or is not shared correctly with other

devices, LED @ is lighted.

If necessary it is possible to connect the SH terminal to another sensor (air quality, temperature or

another 0-10Vdc signal transmitter) the signal value shall anyway be expressed as a percentage

with respect to the range end.

In the operating MODE D4 the relay output behaves as a timed sequencer and it controls

depending on time events and not on temperature/humidity values.

See page 21 to set the Operating Modes and control types.

Rev. d 01/1 10 DMP052E

SET-POINT COMPENSATION

The operation SET-POINT can be fixed or determined by a compensation slope according to the

value given by the compensation sensor.

Both A1 and D1 temperature loops can be temperature

compensated (the SC sensor is necessary) or humidity

compensated (SH sensor). It is necessary to set the Cth

parameter to state the temperature and humidity

compensation. Both A2 and D2 humidity loops can be

temperature compensated only (the SC sensor is

necessary).

The compensation slope is a broken line touching two

points and given by four values.

Depending on the value given by the sensor, a set-point value shall be defined in a range between

a minimum and a maximum.

“Negative Compensation” means when the operating set-point increases while the compensation

sensor value decreases.

“Positive Compensation” means when operating set-point

increases by the increasing of compensation sensor

value.

It is possible to set Negative and Positive Compensations

both for temperature and humidity control loops.

Each operation set-point value, both by temperature

(heating and/or cooling) and by humidity

(humidification/dehumidification) control loop can be

associated to a relevant slope resulting by two values:

- SET-POINT 1 corresponding to TEMPERATURE 1

- SET-POINT 2 corresponding to TEMPERATURE 2

If the Compensation Sensor is present and the Compensation of an Operating Mode is enabled, it

is necessary to determine the four values of the curve. Such values become eight in case of

Operating Mode A3, A4 and D3 because it is necessary to set compensation both for the heating

and for the cooling loops. In the latter case, if compensation should be disabled for one of the two

Loops only, it is necessary to set the minimum Set-point equal to the maximum value achieving a

fixed operation Set-point. It is not possible to enable compensation in Operating Mode D4.

While the A2 and D2 loops can be compensated through the SC temperature sensor, loops A1 and

D1 may be temperature or humidity compensated. The selection is made under the Level II menu

(label Cth).

For the temperature compensation the Compensation Sensor used is the one connected to SC

input, if not differently specified (“SC sharing” see paragraph related to LinkBus). To enable

Compensation first connect or share the Compensation Sensor. If compensation is enabled on any

Operating Mode and the Compensation Sensor is not connected correctly to SC terminal or is not

shared correctly with other devices, the Anomaly led @lights up and the control Set-point

becomes the value set for fixed point, i.e. without Compensation.

For humidity compensation the possible absence of SH sensor does not generate any fault since

its value can be 0.

By humidity control loops, the possibility to compensate the set point depending on SC signal is

used either to perform the remote setting of humidity set point through a potentiometer (see remote

set page 14) or e.g. to compensate linearly minus the room humidity set according to the inner

temperature of glass surface (anti-frost function in swimming pools or wet environments).

In this case, the temperature sensor connected to SC must be located in the indoor part of the

glass wall.

For all compensation parameters settings see page 18

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