Swegon LUNAd MB Manuale utente

LUNAd MB

Instructions for Use 08/04/2021

Content

Introduction ....................................................... 3

1.1 Introduction .......................................................... 3

1.2 Selection of room temperature ............................. 3

1.3 LED status lamp .................................................... 3

System overview and installation. .................... 3

2.1 System overview ................................................... 3

2.2 Terminal functions ................................................ 3

2.3 Invert heating outputs........................................... 4

2.4 Resetting .............................................................. 4

2.5 Hand-held terminal LUNAd T-CU........................... 4

Control functions ................................................ 5

3.1 Operating modes .................................................. 5

3.2 Setting room temperatures ................................... 5

3.3 Deadband............................................................. 5

3.4 Control process..................................................... 5

3.5 P-function............................................................. 5

3.6 I-function.............................................................. 5

Inputs and sensors.............................................. 6

4.1.1 Sensor type ........................................................ 6

4.1.2 Average value measurement............................... 6

4.2 Occupancy sensor................................................. 6

4.2.1 Switch-on delay ................................................. 6

4.2.2 Switch-off delay................................................. 6

4.2.3 Inverting the occupancy signal ........................... 6

4.3 Overriding the operating mode ............................. 6

4.3.1 Forced output when external contact function

is activated ................................................................. 6

4.4 Condensation sensor ............................................ 7

4.4.1 Select effect of output A1 .................................. 7

Outputs and actuators ....................................... 8

5.1 Actuators .............................................................. 8

5.2 Output signals ...................................................... 8

5.3 Heating, cooling or direct temperature regulation

of output.................................................................... 8

5.4 Limitation of control range.................................... 9

5.5 Temperature limits for “direct temperature control” 9

5.6 Setting the voltage limits for outputs A1 and A2... 9

5.7 Inverting the output.............................................. 9

5.8 Periodic valve operation ........................................ 9

Data communication......................................... 10

6.1 Modbus protocol ................................................ 10

6.1.1 Modbus RTU protocol....................................... 10

6.1.2 Data bits and bytes .......................................... 10

6.1.3 Data rate .......................................................... 10

6.1.4 Modbus RTU protocol ...................................... 10

6.1.5 Modbus address............................................... 10

6.1.6 Modbus register ................................................11

6.1.7 Modbus command ............................................11

6.1.8 Modbus RTU over Ethernet................................11

6.1.9 Error messages ..................................................11

6.1.10 Delays and communication errors ................... 12

6.1.11 Monitoring program ....................................... 12

6.2 RS-485 network ................................................. 12

6.2.1 Nodes, server and clients.................................. 12

6.2.2 Transceiver....................................................... 12

6.2.3 Bits and signal levels ........................................ 13

6.2.4 Converter ........................................................ 13

6.2.5 Repeater .......................................................... 13

6.2.6 Screw terminals for network cable ................... 13

6.2.7 Twisted pair cabling ......................................... 13

6.2.8 Galvanic isolation............................................. 13

6.2.9 Polarisation ...................................................... 13

6.2.10 Termination.................................................... 13

6.2.11 Electromagnetic interference .......................... 14

6.2.12 Shielded cable ................................................ 14

6.3 Network structure............................................... 14

6.3.1 Segments......................................................... 14

6.3.2 Number of nodes............................................. 14

6.3.3 Network cable ................................................. 14

6.3.4 Shielded cable.................................................. 15

6.3.5 Earth wire........................................................ 15

6.3.6 Polarisation ...................................................... 16

6.3.7 End termination ............................................... 16

6.4 Network troubleshooting.................................... 16

The document was originally written in Swedish

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6.5 Deviations from the Modbus standard .................17

6.5.1 RTU communication format...............................17

6.5.2 Data rate ..........................................................17

6.6 Modbus register.................................................. 18

6.6.1 Area 0x ............................................................ 18

6.6.2 Area 1x............................................................ 18

6.6.3 Area 3x............................................................ 19

6.6.4 Area 4x............................................................ 20

Menu functions with hand-held terminal....... 23

7. Hand-held terminal ............................................... 23

7.1.1 Factor y reset ..................................................... 23

7.1.2 Quick guide:..................................................... 23

7.2 Hand-held terminal’s different modes.................. 24

7.2.1 Local mode (the settings are made in the tool).. 24

7.2.2 Read mode ...................................................... 24

7.3 LUNAd T-CU buttons........................................... 24

7.4 Display symbols................................................... 25

7.5 Navigation under the main menu ........................ 25

7.6 Navigation under the settings menu.................... 25

7.7 Change values..................................................... 25

7.8 Display overview ................................................ 26

7.9 Week programme ............................................... 27

7.10 Log function...................................................... 27

7.11 Control settings ................................................. 27

7.12 Outputs, settings ............................................... 28

7.13 Inputs, settings .................................................. 30

7.14 Occupancy......................................................... 31

7.15 Calibration of temperature sensors..................... 32

7.16 Button functions................................................ 33

7.17 Test menu.......................................................... 34

7.18 Type designations .............................................. 36

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1.2 Selection of room temperature

The temperature is set by adjusting by turning the adjuster

knob. The adjuster knob always controls the required

temperature in DAY operating mode, irrespective of whether

any other operating mode is active. It is not possible to see

which operating mode is currently active, but with the help

of the large LED you can see whether the controller is in

heating mode, cooling mode or in standby (dead zone).

The scale of the adjuster knob is not graduated (i.e. no

numbers), so that it is possible to change the adjuster

knob’s temperature range. On delivery the adjust knob’s

range is 19–25 °C with the set point 22 °C in the

middle of the set point scale. Turn the adjuster knob up

(clockwise) you increase the temperature and vice versa.

1.3 LED status lamp

The room controller is equipped with a LED status lamp

that indicates the current output signal. The LED lamp can

also display other operating modes. In normal mode the

LED lamp displays the following:

1. Blue = cooling requirement

2. Red = heating requirement

3. Flashing blue = condensation (only when the

condensation function is active in the room controller

and the operating mode is cooling requirement.

Introduction

1.1 Introduction

LUNAd is a room controller that gives a stable and

comfortable room temperature through efﬁcient and

accurate control and regulates air and the different heating

and cooling actuators. The room controller has four outputs

that can individually be adjusted to suit most requirements.

In the supplied version the room controller is set to control

air as well as heating and cooling actuators with 24 V AC

and 0–10 V DC.

The room controller has a built-in temperature sensor for

detection and setting of the room temperature.

Different types of sensors can be connected to the room

controller.

If you need to change the settings on a room controller

a special hand-held terminal with display (LUNAd T-CU)

is required. The hand-held terminal is then connected

temporarily to the room controller’s 4-way connector. The

connector is located behind the room controller’s cover.

If you wish to install an external sensor in the room or

e.g. in the air duct, the sensor is connected to the screw

terminals in the room controller. The external sensor is

then activated automatically.

Even different types of sensors can be connected to the

controller, for example, occupancy sensor, condensation

sensor, extra temperature sensor or an external contact.

The external sensor’s functions can be set on the menus

on the hand-held terminal with display.

The room controller has three different operating modes

(day, night and save) that can activate different room

temperatures.

2.1 System overview

The room controller can be conﬁgured in a variety of

ways. The controller has been especially developed to

facilitate customisation without the need making and

changes to the hardware. The room controller can be

directly connected to numerous different control systems

without the need to make any settings. These are

described in this chapter.

2.2 Terminal functions

The screw terminals on the controller have different

markings and placements. The following ﬁgure describes

the screw terminals in a factory set room controller:

System overview and

installation.

9. Input for condensation sensor

10. Modbus +

11. Modbus -

8. Input for external temp. sensor

7. Analogue output A2, 0–10 V DC, heating

6. G0, 0V from transformer

5. G, phase 24V AC from transformer

4. Analogue output A1, 0–10 V DC, cooling

3. Output D2 - 24 V heating actuator (0 V)

2. Common phase 24V AC for actuator

1. Output D1 - 24 V Cooling actuator (0 V)

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2.3 Invert heating outputs

There is a button under the cover on the controller. The

button can be used to invert all the heating outputs.

1. Set the temperature potentiometer to its lowest position.

2. Press and hold the button for about 12 seconds.

3. The room controller now inverts all the heating outputs.

Repeat the procedure to remove all the inverted

heating outputs.

2.5 Hand-held terminal LUNAb T-CU

On the room controller’s PCB, behind the cover, is a

4-way outlet where the hand-held terminal can be

connected. Using this it is possible to conﬁgure different

settings in the room controller.

All the settings are described in the manual, chapter 7

2.4 Resetting

There is a button under the cover on the controller.

The button can be used to reset the memory according to

the customer’s conﬁguration.

1. Switch off the power to the controller.

2. Press and hold the button while switching on the

power to the controller.

3. Release the button, the controller now performs a

customer reset.

LED Heat

LED Cool

Function LED

Set point

potentiometer

Function button

2 3 4 5 6 7

OFF

Modbus adress

Connector for

onfiguration tool

H202

Temperature

Sensor

9 10 11

LED Heat

LED Cool

Function LED

Set point

potentiometer

Function button

2 3 4 5 6 7

OFF

Modbus adress

Connector for

onfiguration tool

H202

Temperature

Sensor

9 10 11

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Control functions

The room controller regulates the temperature in the

room with the help of a heating elements and/or chilled

beams. The room controller compares the set temperature

with the current measured room temperature and controls

via its outputs the heating or cooling to the room.

3.1 Operating modes

The room controller has three operating modes each

with its own setting values for room temperature and

“deadband”. Other functions can also be connected to

the different operating modes. The operating modes can

be controlled by the following functions in priority order:

1. External contact

2. Occupancy

3.2 Setting room temperatures

The room temperature is adjusted individually for the

three operating modes with the help of the hand-held

terminal LUNAd T-CU.

Using the adjuster knob on the room controller you can

only adjust the desired temperature for DAY mode. The

desired temperature is also called the “set point”. The

measured room temperature is also called the “actual value”.

3.3 Deadband

The room controller has a neutral zone between heating

and cooling control that is called the deadband. This

function is used to prevent both the heating and cooling

outputs from being connected at the same time, and

to save energy. However, the room controller permits

the temperature to deviate a half degree up or down

compared to the set point temperature, before a control

signal is sent to the heating elements or chilled beams.

This applies in DAY operating mode.

In NIGHT mode and SAVE mode the deadband is wider,

to give an economy function when you are not in the room.

When the hand-held terminal is connected it is possible to

adjust the three different deadbands under menu 3.

For DAY operating mode: function “DB.D”

For NIGHT operating mode: function “DB.N”

For SAVE operating mode: function “DB.S”

When high climate comfort is required, the deadband

should be relatively small. However, the deadband should

be wider to save energy.

If the room controller is set to only control heating or

only cooling, then the deadband has not function, and

the room temperature is then controlled directly to the

temperature set for each operating mode.

3.4 Control process

A slightly simpliﬁed control works as follows, step by step:

3.5 P-function

The room controller’s method of control is known as “PI”,

which is an abbreviation of proportional and integral.

The proportional function (p-function) means that

the controller calculates a capacity requirement that is

proportional to the temperature deviation.

The P-band can be conﬁgured under menu 3.

P-band for heating: function “P.H”

P-band for cooling: function “P.C”

3.6 I-function

The integral function (i-function) means that the room

controller continuously monitors the capacity requirement

that the p-function gives. This helps to smooth out the

deviation more accurately than what the p-function can

sometime achieve, for example, due the heating element

or chilled beam needing a higher control signal to be able

to reach the right temperature in the room.

The I-function can be conﬁgured under menu 3.

I-time for heating: function “I.H”

I-time for cooling: function “I.C”

1. The room controller selects the right temperature

and deadband taking into consideration the enabled

operating mode.

2. The controller calculates the regulated setpoints for

cooling and heating that are equal to the setpoint ±

half the deadband.

3. If the temperature has been higher than the regulated

set point for cooling, the controller is set to cooling

mode and uses the regulated set point for cooling when

regulating.

4. The deviation between the desired temperature and

the measured temperature can be calculated.

5. The capacity value for heating or cooling is calculated.

6. The room controller’s i-function detects if the

temperature deviation has not been corrected for a

long period, and if necessary adds an extra “boost” to

the capacity values.

7. The capacity values are converted to output signals and

are sent to the different outputs.

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Inputs and sensors

The room controller has a ﬁxed input for the

condensation sensor and a programmable input for the

external sensor. Depending on the selected function, a

sensor can be of the thermistor type for temperature

monitoring (resistive), condensation detection (resistive)

or a contact (0 V or no contact).

The condensation sensor is connected between terminal

block 9 (input) and terminal block 6 (G0).

An external sensor (resistive or contact) is connected

between terminal block 8 (input) and terminal block 6

(G0).

The conﬁguration tool can be used to select the type of

sensor you wish to connect.

There are four different sensor functions:

Type Input

1. Condensation sensor 9. Condensation

2. External temperature sensor 8. Termistor,NTC,10K

3. Presence sensor 8. Contact:

4. Operating mode contact 8. Contact:

4.1.1 Sensor type

Two types of sensor can be used for temperature control:

a) in-built sensor

b) external resistive sensor (NTC, 10 kOhm at 25°C)

The built-in sensor in the room controller is always used

automatically by the room controller if no other sensor

is connected to the terminal. When an external, resistive

sensor is connected, the room controller selects this

sensor automatically instead of the built-in sensor.

4.1.2 Average value measurement

In order to connect the average value measurement with

both an external sensor and the built-in room controller,

set the following on menu 5 (input).

Function “R1+R2” can be set to 1 or 2

1 = Change over function with external sensor

2 = Average value between external and internal

sensors

(If value 2 is used and if no other external sensor is

connected, the room controller only reads the internal

sensor)

4.2 Occupancy sensor

It’s possible to connect an occupancy sensor that enables

the DAY operating mode when occupancy is detected

and which enables NIGHT operating mode when the

occupancy indication ceases. A switching on and off delay

for the DAY operating mode can be set.

The presence sensor can have a contact output (normally

open or normally closed) which is connected between

terminal block 8 (input) and terminal block 6 (G0). G0

is the signal that the sensor switches on and off to the

input.

The occupancy sensor is activated with the help of the

hand-held terminal, under menu 6 and the function

“ACTIVE” (enable).

4.2.1 Switch-on delay

When occupancy has been indicated at some time

both during the ﬁrst and second half of the delay time,

the DAY operating mode is enabled after the time has

expired. This operating mode remains enabled as long as

there is an occupancy indication.

The switch-on delay for occupancy is selected under

menu 6:

Function “TIME1”: select the delay time for switching on

4.2.2 Switch-off delay

The switch-off delay delays the disabling of DAY operating

mode when occupancy indication from the sensor ceases. The

time is adjustable between 0 and 990 minutes. The resolution is

10 minutes over 100 minutes.

The switch-off delay for occupancy is selected under menu 6:

Function “TIME0”: select the delay time for switching off

4.2.3 Inverting the occupancy signal

The input function can be inverted to select either an

occupancy sensor that has a normally open or normally

closed contact for occupancy indication.

Inverting the occupancy signal is selected under menu 6:

Function “NO”: 0 = (NC, normally closed) opens

when occupancy is detected

1 = (NO, normally open) closes

when occupancy is detected

4.3 Overriding the operating mode

With the 0 V-signal from an external contact, you can force

any of the room controller’s four outputs. The contact is

connected between terminal 8 (input signal) and 6 (G0).

Enabling the external contact function is selected under menu

5 with the help of the hand-held terminal LUNAd T-CU.

Function “EXT.”:

0 = external contact function disabled

1 = external contact function enabled

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4.3.1 Forced output when external contact

function is activated

When the external contact function is enabled it is

possible to select which of the outputs is to be forced to

open (0 V to terminal 8).

Activation of forcing output is selected under menu 4,

OUTP”:

First select the output under the function “OPno”:

D1 = 24 V output terminal 1

D2 = 24 V output terminal 3

A1 = 0–10 V output terminal 4

A2 = 0–10 V output terminal 7

Select the function “FORC.”:

0 = forcing of output disabled

1 = forcing of output enabled (when the external

contact is enabled with 0 V to the input on terminal 8).

4.4 Condensation sensor

It is possible to connect a condensation sensor to input I1

(between terminal 8 and terminal 6) to disable all cooling

outputs and generate an alarm for high condensation of

output A1.

The condensation input is designed for resistive

condensation sensors, with resistance values between 50

K and 900 kΩ(for condensation).

The condensation function is set under menu 5 with the

help of the hand-held terminal LUNAd T-CU.

Function “COND” 0 = condensation disabled

1 = condensation enabled

4.4.1 Select effect of output A1

If this function is enabled, the controller activates the 10 V

DC output on Y3 (terminal 4) when condensation occurs.

Function “CALRM” 0 = alarm signal disabled

1 = alarm signal enabled

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Outputs and actuators

The room controller has two 24 V outputs (d1 and d2) and two

analogue 0–10 V outputs (A1 and A2).

Actuators are connected to the following terminal blocks:

• d1: terminal block 1 and 2.

• d2: terminal block 3 and 2.

• A1: terminal block 4 (+), terminal block 6 (G0) and to G

(phase 24 V AC).

• A2: terminal block 7 (+), terminal block 6 (G0) and to

G (phase 24 V AC).

An output can be affected by the following functions (the

uppermost has the highest priority):

1. Output affected by the condensation sensor

2. Output enabled for test activation

3. Output enabled if the function “FORC.”=1 on

menu 4 when input I2 is set to the contact

function “EXT.” = 1.

Under menu 4 (“OUTP”) you can select the type of

regulation outfeed and other settings for each output.

Select the output to be set:

Function “OPno” select d1, d2, A1 or A2.

The setting of functions that follow “OPno” only apply to

the selected output.

When “3P” has been selected for output D1, the settings

refer to both outputs d1 and d2, as this outfeed uses both

the digital outputs.

The room controller outputs a heating and cooling

capacity values between 0–100 % to the outfeed logic.

A capacity value is calculated for each individual output

based on this value (and depending on the following

settings for each output).

5.1 Actuator

In this context an actuator is an electro-mechanical unit

that is governed by an electrical signal from the controller

and manoeuvres, e.g. a valve or damper to close.

5.2 Output signals

Different actuators require different output signals from

the room controller. The outputs are therefore adjustable

for different types of actuator.

Pulse regulating (24V or 0-10V)

Normally used to control thermal actuators or for

electrical heating control.

ON/OFF control (24V or 0-10V)

Normally used for the control of 2-position damper

motors or electrical heaters via contactors.

3-p regulating (24V)

Normally used to control increase/decrease actuators.

0-10 V regulation (0-10 V)

Normally used to control 0-10 V actuators.

5.3 Heating, cooling or direct

temperature regulation of output

You can choose whether an output should control a

heating actuator, a cooling actuator or an actuator for

both heating and cooling.

A cooling actuator is only activated when the controller

outputs a capacity value for cooling. A heating actuator

is only activated when the controller outputs a capacity

value for heating.

An actuator that is directly controlled by the room

temperature is not affected by the controller’s fed

capacity, but only by the selected limit value for the room

temperature.

Go to the function “HC” under menu 4, and set the

following selections for the required output:

COOL: for the regulation of cooling

HEAT: for the regulation of heating

HC: for the regulation of both cooling and heating

dIFF: for direct temperature control

In “HC” mode, 0–5 V is fed with a cooling requirement

100–0 % and 5–10 V for a heating requirement 0–100 %

on outputs A1 and A2.

It is possible to set the controller so that the 0–10 V

outfeed to output A1 is available both for heating and

cooling requirement to control of an actuator on a 6-way

valve.

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5.4 Limitation of control range

(does not apply if “direct temperature regulation of

output” is selected)

The room controller calculates a capacity value between

0–100 % which is sent to the outfeed logic. You can

choose, for each output, whether it should regulate

within the whole or part of this range.

Example:

If, for example, you have selected an output that regulates

within the range 20–50 %, the capacity to the actual

output will be regulated as follows:

This function can be used, for example, to control output

in sequence.

Go to menu 4, and set the following selections for the

required output:

LIML%: the low capacity limit in %

LIMH%: the high capacity limit in %

5.5 Temperature limits for “direct

temperature control” (see 5.3)

When “dIFF” is selected in the function “HC”, the output

is not regulated to the capacity value from the controller,

but directly by the selected room temperature limits.

Set a temperature range with the functions “LIM.-1” and

“LIM.-0”. When the temperature is within the range and

“PULS”-, “3P”-, “OnOff” or “0-10” regulation is selected,

the capacity is outputted to output by the temperature

value in relation to these limit values.

When the temperature reaches “LIM.-1” or is outside of

this value, 100 % of the capacity is fed to the output.

When the temperature reaches “LIM.-0” or is outside of

this value, 0 % of the capacity is fed to the output.

5.6 Setting the voltage limits for outputs

A1 and A2

The voltage on outputs A1 and A2 are normally between

0–10 V, but the values can be limited upwards or

downwards.

The voltage from output A1 and A2 does not drop below

the selected minimum value in the function “LIML V” and

does not exceed the selected max value in the function

“LIMH V”.

Exceptions For the condensation indication the voltage is

set to 0 V, irrespective of the value for the function “LIML V”.

5.7 Inverting the output

Inverting means that the outputs D1 and D2 close instead

of open and vice versa.

For an increase/decrease outfeed the outputs with work

in reverse so that the actuator changes rotation direction.

Output A1 and A2 give 10–0 V instead of 0–10 V, for

example 7 V becomes 3 V instead.

Inverting of the output signal is set under menu 4:

Function “INV.” select 0 (not inverted)

select 1 (inverted)

5.8 Periodic valve operation

Some valves need to be “test run”, i.e. periodically

opened and closed to not jam or seize.

Test running occurs at optional daily intervals:

D1 and A1 open at 01:00–01:03.

D2 and A2 open at 01:30–01:33.

The setting for test running is set under menu 4:

The function “MOT” select the number of days between

test running. The value 0 disables test running.

Capacity from the controller Capacity outfeed to the output

0–20 % 0%

20–50 % 0–100%

50 –100 % 100 %

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Data communication

The room controller has a built-in communication port

that enables connection to an RS 485 network with

Modbus for supervising and overriding via a building

management system, for example a computer.

6.1 Modbus protocol

Modbus is a communication protocol (language) used to

transfer information between a server and a number of

client nodes.

All “trafﬁc” on the network is always initiated only by the

server node.

All other nodes on the network are only permitted to sit

quietly and wait for the server to “query” just them. Thus

the clients cannot send their own packages to any other

client node.

In addition, a client node cannot send spontaneous

messages to the server, for example, alarms or the like.

Regular reading from the server is established instead, so

that it can detect alarms out in the client nodes.

6.1.1 Modbus RTU protocol

Modbus RTU, which is one of the different variants of the

Modbus protocol, is used to communicate with the room

controller.

Other “dialects” available (but which are not supported by

the room controller) are Modbus ASCII and Modbus TCP.

6.1.2 Data bits and bytes

The information on the Modbus network is structured by

a long row of ones and zeros. These are called bits and

are grouped into bytes (= characters). Each byte appears

like this:

a) start bit (1 bit)

b) data bits 0–7 (8 bits)

a) stop bit (1 bit)

Other byte structures can be selected with the help of a

room controller E201 with display or E203. 7 or 8 data

bits can be selected, and 1 or 2 stop bits. An extra parity

bit precisely before the stop bit can also be selected to

give extra error detection.

6.1.3 Data rate

The room controller is preset at the rate 19200 bits/sec.

Other rates can be selected with the help of a room

controller with display (or conﬁguration unit). If the data

rate is changed to a higher level, higher demands are

made on the network cable. You may need to limit the

cable length and sometimes even choose a shielded cable.

Termination of the cable ends may also be necessary at

higher rates to eliminate reﬂection interference.

6.1.4 Modbus RTU package

Every “package” (message) sent on the network includes

the following information:

a) node address (1 byte)

b) command (1 byte)

c) data values (1–252 bytes)

d) checksum (2 bytes/CRC-16)

When a complete package with bytes has been sent from

the server, the queried node has the possibility to send its

response back to the server.

6.1.5 Modbus address

Each Modbus device needs its own unique address to

be able to communicate on the network. This is called a

node address and should be a number between 1 and

247. The node address is set on the room controller’s

circuit board, on an 8 position dip switch.

Exercise care to ensure that no Modbus device has the

same number as another device on one and the same

segment (bus). It is therefore a good idea to create a list

of node numbers that shows in which room each device

is installed.

If you choose to set the address on the dip switch, you need

to calculate binary code. Each button corresponds to a

value that is twice the size of the previous button. The ﬁrst

button means 1, next button 2, next 4, next 8 and so on.

Example:

1 2 3 4 5 6 7 8

The row of buttons above is called a “dip switch” and

has the buttons 2, 5 and 6 set to the “ON” position. The

buttons are in turn worth 1, 2, 4, 8, 16, 32, 64 and 128. If

a button is in the “ON” position, you should calculate the

button value. The example above means that the address

50 is selected.

(0+2+0+0+16+32+0+0 = 50)

In order to quickly calculate the right binary code, you

can use certain mini calculators (which have the binary

number system). The calculator included with Microsoft

Windows can be set to “advance mode”, and then used

to convert common decimal numbers to binary. Note

that you must then reverse the order of ones and zeros.

The number shown to the far right of the calculator

should always be set on the button to the far left on the

controller’s dip switch. If the calculator shows fewer than

eight digits, this means that the rest of the buttons to the

right on the dip switch should be set to the off position

(i.e. not “ON”).

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