Lumel DLZ Manuale utente

DIGITAL CLOCK

DLZ Type

Service manual

Table of contents:

1. APPLICATION ..............................................................................................................5

2. CLOCK KIT ..................................................................................................................5

3. BASIC REQUIREMENTS AND OPERATIONAL SAFETY INSTRUCTIONS ............................................5

4. CONSTRUCTION AND INSTALLATION ..................................................................................6

5. ELECTRICAL CONNECTIONS .............................................................................................6

6. CONFIGURATION ..........................................................................................................7

7. INTERFACE .................................................................................................................7

8. SPECIFICATION ............................................................................................................9

9. VERSION CODE .......................................................................................................... 10

10. BEFORE SANDING A FAULT REPORT................................................................................. 11

11. MAINTENANCE AND SERVICE ......................................................................................... 11

1. Application

Digital clocks of the DLZ type are used to display current time indoors. They can also display the

current date and, in cooperation with the P18 transducer, the temperature and humidity. The communi-

cation interface of the clock allows for easy configuration of the clock, and the second inbuilt interface

RS485 makes it possible to cooperate with the temperature and humidity transducer. The transducer

output values can be read by means of the user interface.

The DLZ clocks are equipped with a programmed brightness function to allow for energy savings when

the clock does not need to work, or when full brightness could dazzle the user.

The DLZ clocks are used wherever there is a need for the current time, date, temperature and humidity

to be displayed.

It is possible to adjust the clock in accordance with the customer alignments.

2. Clock kit

The clock kit consists of:

lDLZ clock - 1 pc.

lAssembly holder - 2 pc.

lService manual

lGuarantee certificate

3. Basic requirements and operational safety instructions

The DLZ clocks conform to the PN-EN 61010-1 safety standard. The following advice must be

observed and adhered to during the installation process and operational use:

lOnly qualified technical personnel should perform the installation and connections of the clock.

All possible safety stipulations should be observed.

lThe correctness of electrical connections must be checked before supplying them with current.

lDo not use an autotransformer for connecting the clock to the mains supply.

lDo not mount the clock outdoors.

lThe display must be used according to its intended purposes only.

lRemoving the panels housing within the guarantee period will cause the guarantee to expire.

lDisconnect the display from the power supply before opening the housing. The housing contains

live terminals hazardous to life and health.

lWhen connecting the mains, protect the device with the breaker switch or circuit breaker. The

mentioned switch should be in the vicinity of the device, easily accessible to the user and

labelled as the cut out of the device.

4. Construction and installation

The DLZ clock is made of black painted aluminium sections. The housing offers Protection Classifi-

cation IP40 in general and of IP 20 on the housing side where connections are located. The view and

dimensions of the clock are shown in Fig. 1.

Figure 1. View of the clock.

The clock may be wall mounted or underslung. It be mounted at any angle.

5. Electrical connections

Supply and interface connections should be connected according to this instruction. Improper con-

nection could damage the clock, so prior to making connections carefully read the information given

in chapter 3.

For connecting interface signal, use cable consisting of twisted pairs from the shield. Each pair should

contain the A and B line of each interface. The connecting terminals and function of the terminals are

shown in Figure 2.

Figure 2. Description of the clock’s terminals.

If the ambient temperature was changed rapidly before installation, wait for at least 60 minutes before

first switching it on.

Attention: RS-485 interfaces are galvaniclly separated from one another and galvanically separated

from power supply. Do not connect interface and signals together.

After switching on the clock performs a display test. It lights all segments and increases their brightness.

After reaching the maximum brightness, the clock proceeds to normal operation.

Attention: If during the cooperation of clock and P18 transducer, the clock displays time instead of

temperature or humidity.

6. Configuration

The digital DLZ clock can be set through the RS485 interface, using the MODBUS RTU standard. The

default transmission parameters of the clock are as follows:

lAddress: 1;

lMode: RTU 8n2;

lBit rate: 9600 bps.

The configuration can be modified by writing the required value into the clock registers. The registers

map is described in the next charter. Any program enabling to change the value written in the device’s

registers and working in the MODBUS RTU standard can be used to change the configuration set-

tings.

Modifiable basic settings are as follows::

lThe connection of the panel and the computer or master device parameters;

lThe transmission parameters between the panel and the P18 transducer.

lThe brightness level for day and night, and the hours of day- and night time changes.

lThe display mode - determines which settings are to be displayed by the clock.

lThe time of displaying the parameter - determines the time of displaying the value of the

individual parameter.

lCurrent time and date.

lThe setting of the P18 connection.

The DLZ clocks can display: time, date, temperature and humidity. The user can choose one of the

following configurations to display:

lTime only.

lDate only.

lTime and temperature.

lTime, temperature and humidity.

lTime, date, temperature and humidity.

7. Interface

DLZ clocks contain 2 serial interfaces, working according to the MODBUS RTU standard. One interfa-

ce is the master in the MODBUS network and it is used to connect the humidity and temperature con-

verter P18. The other is the slave in the network, and is used to connect the clock to the master system,

for example the computer. The slave interface makes it possible to set up and read values from the

P18 converter.

The DLZ clock is equipped with MODBUS functions 3, 16 and 17.

The register map of the clock is as follows.

Address Operation Scope Description Default

4000 RW 1…247 Address of interface 1 - user interface1 1

4001 RW 0…3

Mode of operation of interface 1:

0: RTU 8N1

1: RTU 8N2

2: RTU 8E1

3: RTU 8O1

4002 RW 0…9

Interface 1 bitrate [b/s]:

0 – 2400; 1 – 4800; 2 – 9600; 3 – 14400;

4 – 19200; 5 – 28800; 6 – 38400; 7 – 57600;

8 – 76800; 9 – 115200

4003 RW 1…50 Response time of the slave device for port 2 shown in 100 ms

multiple 5

4004 RW 0…3

Mode of operation of interface 2:

0: RTU 8N1

1: RTU 8N2

2: RTU 8E1

3: RTU 8O1

4005 RW 0…9

Interface 2 bitrate [b/s]:

0 – 2400; 1 – 4800; 2 – 9600; 3 – 14400;

4 – 19200; 5 – 28800; 6 – 38400; 7 – 57600;

8 – 76800; 9 – 115200

4006 RW 1…100 Daytime brightness level 100

4007 RW 1…100 Nighttime brightness level 100

4008 RW 0…2359 The day starting hour 600

4009 RW 0…2359 The night starting hour 2200

4010 RW 0..4

Display mode:

0 – time only;

1 – date only;

2 – time; temperature;

3 – time; temperature; humidity;

4 – time; date; temperature; humidity

4011 RW 1…250

Page duration time - the time interval of displaying a given

parameter value in the displaying cycle. The time is given as

100 ms multiple.

4012 Current time in format the hour *100 + minutes

4013 Current time - seconds

4014 Current date - month*100 + day

4015 Current date - year

4016 Status

4017 Status of connected devices

Registers 43XX - configuration for reading additional devices

Address Operation Scope Description Default

4300 RW 0,1…247 Address of slave device. 0 - switches off the device off 1

4301 RW 0…65535 Base address. 7501

4302 RW 1…10 Number of registers read 4

4303 RW 0…6

0 – char type variable

1 – unsigned char type variable

2 – integer type variable

3 – unsigned integer type variable

4 – long type variable

5 – unsigned long type variable

6 – float type variable

4304 RW 1…60 Review time in seconds. Determines the frequency

of querying the slave device. 1

The 75XX registers - read values and system settings (fan operation)

Address Operation Scope Description

7500 R NA Device 1 - The first read register. Temperature. NA

7501 R NA Device 1 - Second read register. Humidity. NA

7502 R NA Device 1 - Third read register. NA

7503 R NA Device 1 - Forth read register. NA

7504 R NA Device 1 - Fifth r read register. NA

7505 R NA Device 1 - Sixth read register. NA

7506 R NA Device 1 - Seventh read register. NA

7507 R NA Device 1 - Eighth read register. NA

7508 R NA Device 1 - Ninth read register. NA

7509 R NA Device 1 - Tenth r read register. NA

8. Specification

Power consumption < 15 VA

Display The display field consists of seven-segment displays

100 mm and 57 mm high.

Communication:

- interface 2 ´R-S485 galvanically separated

- transmission protocol MODBUS RTU

- functions performed 03, 16, 17

- data format 8n1, 8n2, 8e1, 8o1

- bitrate [KB/s] 2,4; 4,8; 9,6; 14,4; 19,2; 28,8; 38,4; 57,6; 76,8; 115,2

- max response time < 300 ms

9. Version code

Digital clock DLZ - XX X

Version

Standard ........................................... 00

Special ..............................................XX

Acceptance tests

No additional requirement ........................0

Quality certificates required......................1

To be agreed on with the customer........ X

Coding example:

DLZ - 00 0 designates a DLZ clock standard version with no additional acceptance tests performed.

X – the numbering to be determined by the manufacturer

Response to power failure

and return The configuration data are saved.

Dimensions see Fig. 1.

Case protection classification IP 40,

IP 20 on the side of the connecting pins

The reference conditions and nominal operation conditions.

- operating temperature 0...23...50°C

- storage temperature - 20...75°C

- humidity 25...95%

- power supply 85...230...253 V a.c.

- frequency 45...50...60 Hz

- working position any

Standards conformance

Electromagnetic compatibility:

- noise immunity acc. to EN 61000-6-2

- interference emission acc. to EN61000-6-4

- power failure immunity acc. to EN 61000-6-2

Safety requirements:

EN 61010-1 standard compatible

• case insulation: basic

• insulation between circuits: basic

• installation category III

• contamination degree 2

• maximum working voltage difference between earth and the power supply circuits 300 V

and other circuits 50 V.

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