Produal HLS34 Manual de usuario

1150.11E

January 2007

Enquiries: T: +358 5 230 9200 F: +358 5 230 9210

HLS34 Modbus FCU/VAV Controllers installation instructions

ModelType Model Description

HLS34 HLS34 Room Temperature Controller with Modbus Networking Capability

Technical Data Power Supply 24Vac/dc (20…26V), <1VA

NOTE! If using DC-voltage only 0..10V outputs are operational

Inputs Built-in Temperature Sensor

1 x NTC10 e.g. TEHY-NTC10 (for control or measurement only)

1 x Volt-Free (PIR –normally closed)

1 x Analogue (CO2 measurement)

Outputs 2 x 0..10Vdc (Heating/Cooling Actuators, VAV or Fan Speed Control)

4 x 24Vac Triacs, 1A maximum (3-Point Actuators / Thermic Actuators)

Communications RS-485 Modbus RTU, 9600/19200/38400 bps, 8 data bits, Parity None, 1 Stop Bit (Up to

128 devices per segment)

Set Point Adjustment DAY SETPOINT

21°C ±3°C (factory default); setpoint adjustable pressing “+” and “-“ buttons within

programmable ±range; network setpoint available via Modbus or in the configuration mode

NIGHT SETPOINT

5-20°C (factory default 18°C); adjustment available via Modbus or in configuration mode

Accuracy ±0.5°C

Dead Zone DAY mode Dz = 0..3°C (factory default = 0.3°C)

Relaxed mode Dz = 0..10°C

Proportional Band Xp = 1..8°C (factory default = 4°C)

Integral Action Time Tn = 50..500s (factory default = 300 sec)

3-Point Control

Actuator Runtime Mt = 30..300s (factory default = 180 sec)

Protection Class IP20

Operating Humidity 0..95% rH non-condensing

Wiring Terminals 1.5 mm2

Housing ABS Plastics

Dimensions 87W x 86H x 32D mm

The HLS34 is specifically designed for individual room temperature

and zone control applications. The controllers have built-in RS-

485

channel for Modbus communication. The controllers can be

connected to any supervisory software/system that supports

Modbus RTU.

The HLS34 has built-

in display and unique touch sensitive buttons

for adjusting the user parameters and to configure the controller.

The controller supports 0..10V actuators, 3-

point controlled

actuators and thermic actuators. One of the controller 0..10Vdc

outputs can be configured for fan speed control via FCRY3 relay

module.

Temperature is detected by the internal sensor o

f the HLS34. If an

external temperature sensor such as return air sensor or remote

room sensor is required, this can be connected to the wiring

terminals provided on the controller. The external sensor type is

NTC10.

The controller has DAY and NIGHT oper

ating modes. When in the

NIGHT mode the controller can be overridden to the DAY mode via

a hardware input, by touching day extension button or over the

MODBUS network. The controller has also a CO2 measurement

input for boosting the ventilation (fan speed)

in case of high CO2

level in the room space.

1150.11E

January 2007

www.produal.fi

Products meet the requirements of directive 89/336/EEC and standards EN50081-1: 1992 (Emission) and EN50082-2: 1995 (Immunity).

Wiring Terminals

The electrical installation, device connection and commissioning can only be carried out by

qualified professionals and according to the local wiring regulations!

AIR-SIDE APPLICATION WIRING

1150.11E

January 2007

www.produal.fi

Products meet the requirements of directive 89/336/EEC and standards EN50081-1: 1992 (Emission) and EN50082-2: 1995 (Immunity).

Controlleroptions

OperationModes HLS34 has two operation modes: DAY and NIGHT. The unit can be switched between day and night modes

either via Modbus network or via the DAY EXTENSION typically connected to PIR. The user can also

change NIGHT mode to DAY mode by pressing “MAN IN THE HOUSE” (occupancy) button on the unit. After

2-hours (adjustable) DAY mode returns automatically back to the NIGHT mode. When in DAY mode the

controller operates the valve outputs according to the below diagram.

DAY MODE

In the DAY mode the temperature is controlled to the setpoint using PI-control. The controller has adjustable

dead zone between heating and cooling modes.

The controller DAY setpoint (SP) is calculated as follows:-

SP = SPnetwork ±SPlocal,whereSPnetwork is setpoint set via Modbus network and SPlocal is the setpoint set by

the user by pressing “+” and “-“ buttons. SPlocal range is limited at the commissioning stage (default ±3°C)

In the NIGHTmode the controller controls to the NIGHT/FROST setpoint. If the temperature falls below the

NIGHT setpoint (5..20°C), the heating output is opened and the fan is overridden on (if fan speed control has

been enabled). The NIGHT setpoint is adjustable via Modbus network or in the configuration mode.

When the controller returns to the DAY MODE from NIGHT, the controller DAY setpoint can return to the

DAY setpoint programmed previous day, or the DAY SP can be reset to the SPnetwork Modbus Network

Setpoint. This is a configurable option (configuration parameter SP_ND). If no network setpoint is available

21°C is used as default.

Air

side application

Description of operation

1150.11E

January 2007

www.produal.fi

Products meet the requirements of directive 89/336/EEC and standards EN50081-1: 1992 (Emission) and EN50082-2: 1995 (Immunity).

NIGHT MODE

The configuration parameter J7 sets the controller operation during the night time; Relaxed Deadzone or

Frost Protection (Thermostat).

1) Relaxed Deadzone at Night

The controller operates as in the DAY mode but the deadzone around the controller is expanded to NDz

value. Therefore at the night time the controller energy consumption is reduced.

NOTE: It is also possible to set the night deadzone to smaller value than day deadzone.

2) Frost Protection (Thermostat)

In the NIGHT mode the controller controls to the NIGHT/FROST setpoint. If the temperature falls below the

NIGHT setpoint (5..20°C), the heating valve is opened and the fan is overridden on (if fan speed control has

been enabled). The NIGHT setpoint is adjustable via Modbus network or in the configuration mode. If the

temperature exceeds 2°C the NIGHT setpoint the heating valve is closed and the fan is switched off.

Fan Speed Control Fan speed control can be enabled during the commissioning (configuration parameter FAN). When fan

speed control is enabled the Heating Analogue output is converted operate as the control signal to the

FCRY3 fan speed control relay module.

In automatic control the fan speed output operates as follows:-

-Valves closedàFan speed output 0%

-Heating/Cooling Valve OpensàFan speed output is set to 3.3V (Speed 1)

-Heating/Cooling Valve Opens more than 25% àspeed output is set to 6.6V (Speed 2)

-Heating/Cooling Valve Opens more than 50% àspeed output is set to 10V (Speed 3)

Automatic Speed 3 control is disabled as default. However, the user can manually override speed 3 on

through the keypad. Typically speed 3 causes a higher level fan noise and therefore it is recommended that

this is manual override option operated by the user. Automatic Speed 3 control can be enabled during the

commissioning via basic settings.

When the controller switches to NIGHT mode or the temperature is within the dead zone, the fan is

automatically switched OFF after 5 minutes timeout.

Ventilation Boost

(CO2 Control) If HDK or HDH CO2 transmitter is connected to the controller analogue input U1, the controller can be

enabled to boost the fan speed / switch the fan On in case of high CO2 content in the occupancy space. This

is a very useful feature to provide demand based ventilation. High CO2 level overrides the fan speed set by

the temperature based fan speed control.

Day Extension

via digital

input The controller has hardware digital input that can be connected to a momentary push button contact (e.g.

PJP1) or to a PIR sensor (e.g. LA24) to override the controller to DAY operation. These are typically used

out of hours to provide comfort control. Alternatively PIR input can be used as the primary means of

switching between DAY and NIGHT modes. The digital input is normally closed.

NOTE: The digital input is activated when it is first time closed. The controller is supplied with the digital input

as open contact.

Day Extension via

keypad The controller can be overridden to DAY operation by pressing the “MAN IN THE HOUSE” occupancy

button. When pressed the controller is overridden to DAY mode for the period of two hours. The extension

time is adjustable between 1..480 minutes via Modbus network.

VAV Control with Fresh

Air Demand Boost The controller can also be used as Variable Air Volume controller by connecting the VAV Box damper to the

output Y1. The output Y1 is then modulated according to temperature demand in the room space.

If HDK or HDH CO2 transmitter is connected to the controller analogue input U1, the controller can increase

the fresh air demand i.e. overdrive the analogue output Y1 when the CO2 content in the room space

exceeds the acceptable limit. The CO2 influence is set via configuration parameters CO2 LO (e.g. 750 ppm)

and CO2 HI (e.g. 1250 ppm). Between the CO2 limits the influence is calculated using linear relationship i.e.

when CO2 measurement is at CO2 HI setpoint, the CO2 influence is 100% (Y1=10V).

Air-side application Air side application controls the temperature by modulating the damper output and 3-point control outputs.

When the room temperature is at the setpoint the control output is at 50%. When the temperature increases

above the setpoint the control signal starts to drop providing cooling to the room space. When the

temperature drops below the setpoint the control output increases to provide heating to the room space.

For the air-side application to operate correctly set configuration parameters J1 and J2 to Direct Operation.

1150.11E

January 2007

www.produal.fi

Products meet the requirements of directive 89/336/EEC and standards EN50081-1: 1992 (Emission) and EN50082-2: 1995 (Immunity).

Controller

Configuration The controller is parameterised locally via a configuration mode, or using HLS34 Handheld

Configuration Tool. The HLS34 handheld tool allows quick configuration of large number of controllers.

To configure the controller locally, first remove the top cover. A CONFIGURATION MODE JUMPER is

located below the LCD display. When the jumper is set the controller is in normal operation. By

removing the jumper the controller enters to the configuration mode.

Once the configuration has been completed, by setting the jumper the controller returns to the normal

operation.

NOTE: The controller is supplied with the configuration jumper unset i.e. in the configuration mode

Configuration

Parameters

1150.11E

January 2007

www.produal.fi

Products meet the requirements of directive 89/336/EEC and standards EN50081-1: 1992 (Emission) and EN50082-2: 1995 (Immunity).

Network Diagram Up to 128 HLS34 controllers can be connected to a single network segment.

The diagram below illustrated the typical installation where the room controllers are connected on the

floor level to the Netbiter embedded web-server. Each Netbiter holds a time schedule for the floor to

switch the controller between day and night operation modes.

1150.11E

January 2007

www.produal.fi

Products meet the requirements of directive 89/336/EEC and standards EN50081-1: 1992 (Emission) and EN50082-2: 1995 (Immunity).

Modbus

Registers The controller supports the following Modbus registers and function codes. The default communication speed is

9600 bps, 8 data bits, Parity None and 1 Stop Bit.

FUNCTION CODE 01 -READ COILS

1Overdrive mode Bit0 On -Off

2NIGHT-mode Bit1 On -Off

3SERVICE ALARM Bit2 On -Off

5Fan Speed 1 asked Bit4 On -Off

6Fan Speed 2 asked Bit5 On -Off

7Fan Speed 3 asked Bit6 On -Off

8Fan Speed 4 (Auto) asked Bit7 On -Off

FUNCTION CODE 02 -READ DISCRETEINPUTS

1Occupied by PIR ( NIGHT mode to DAY-mode ) Bit0 On -Off

2Manually Occupied ( NIGHT mode to DAY-mode ) Bit1 On -Off

3DAY EXTENSION ( NIGHT mode to DAY-mode ) Bit2 On -Off

4EXT.S (External Sensor) Bit3 On -Off

5Fan Speed 1 run Bit4 On -Off

6Fan Speed 2 run Bit5 On -Off

7Fan Speed 3 run Bit6 On -Off

FUNCTION CODE 03 -READ HOLDING REGISTERS

2Coils 16 -01 16 bit

3Fan Speed (Set by Network) Signed 16 0 -1 -2-3 -4

4Cooling Output (Set by Network) Signed 16 0,0 … 100,0 (%)

5Heating Output (Set by Network) Signed 16 0,0 … 100,0 (%)

6Set Point (Set by Network) Signed 16 5,0 … 37,0 (C)

13 DAY EXTENSION period Signed 16 1 … 480 (min)

FUNCTION CODE 04 -READ INPUT REGISTERS

1Discrete Inputs 16 -01 16 bit

2Coils 16 -01 16 bit

3Fan Speed (Set by Network) Signed 16 0 -1 -2-3 -4

4Cooling Output (Set by Network) Signed 16 0,0 … 100,0 (%)

5Heating Output (Set by Network) Signed 16 0,0 … 100,0 (%)

6Set Point (Set by Network) Signed 16 5,0 … 37,0 (C)

7Temperature Signed 16 -60,0 … 60,0 (C)

8CO2 Signed 16 0 … 2000 (ppm)

9Current Cooling Output Signed 16 0,0 … 100,0 (%)

10 Current Heating Output Signed 16 0,0 … 100,0 (%)

11 Current Fan Speed Signed 16 0 -1 -2-3

1150.11E

January 2007

www.produal.fi

Products meet the requirements of directive 89/336/EEC and standards EN50081-1: 1992 (Emission) and EN50082-2: 1995 (Immunity).

12 Current Setpoint Signed 16 5,0 … 37,0 (C)

13 DAY EXTENSION period Signed 16 1 … 480 (min)

FUNCTION CODE 05 -WRITE SINGLE COIL

1Overdrive mode (Cooling and Heating outputs) Bit0 On -Off

2NIGHT-mode Bit1 On -Off

3SERVICE ALARM Bit2 On -Off

5Fan Speed 1 asked Bit4 On -Off

6Fan Speed 2 asked Bit5 On -Off

7Fan Speed 3 asked Bit6 On -Off

8Fan Speed 4 (Auto) asked Bit7 On -Off

FUNCTION CODE 06 -WRITE SINGLE REGISTER

2Coils 16-01 16 bit

3Set Fan Speed Signed 16 0 -1 -2-3 -4

4Cooling Output (Overdrive mode = “on” ) Signed 16 0,0 … 100,0 (%)

5Heating Output (Overdrive mode = “on” ) Signed 16 0,0 … 100,0 (%)

6Set Point by Network ( DAY value only ) Signed 16 5,0 … 37,0 (C)

13 DAY EXTENSION period Signed 16 1 … 480 (min)

FUNCTION CODE 16 -WRITE MULTIPLE REGISTERS

2Coils 16-01 16 bit

3Set Fan Speed Signed 16 0 -1 -2-3 -4

4Cooling Output (Overdrive mode = “on” ) Signed 16 0,0 … 100,0 (%)

5Heating Output (Overdrive mode = “on” ) Signed 16 0,0 … 100,0 (%)

6Set Point by Network ( DAY value only ) Signed 16 5,0 … 37,0 (C)

FUNCTION CODE 22 -MASK WRITE REGISTER

2Coils 16 -01 16 bit AND 0 … 0xFFFF

OR 0 … 0xFFFF

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