The Novatek-Electro EM-130 is a programmable astronomical timer with Wi-Fi connectivity, designed to automate lighting and other electrical loads based on sunrise/sunset times or custom schedules. It is ideal for street lighting, building facade illumination, parking lots, heating systems, pumps, fans, and scheduled operations like school bells.
This Operating Manual explains the design, purpose, operating rules, and maintenance procedures for the EM-130 Programmable Astronomical Timer with Wi-Fi.
The EM-130 programmable astronomical timer (hereinafter referred to as the Timer, EM-130) is a microprocessor device connected to Wi-Fi, which is designed to automate the street lighting switching on (poles, lanterns, etc.), illumination of building facades (adjacent territories, parking lots and other objects), heating devices, pumps, fans, and school bells ringing.
EM-130 provides the ability to configure parameters remotely via the built-in Web-interface (using a phone browser, a tablet, etc.), Modbus TCP or a remote Overvis server.
EM-130 automatically calculates the time of sunrise and sunset based on the entered coordinates and the current time enabling controlling lighting without using external sensors.
EM-130 can be used for load management depending on real-time without the need for continuous maintenance.
EM-130 is equipped with its own Wi-Fi access point, which enables direct connecting to the Timer using a mobile device with Wi-Fi and a browser.
You will start saving energy and your money by using EM-130 to control your lighting or heating appliances according to a preplanned schedule.
The Timer’s principle of operation is based on switching the load on/off according to the user’s preset schedule for the entire week (7 days).
A maximum of 1024 events can be set in EM-130 with an accuracy of 1 minute, which the user can distribute over the entire week (7 days) at their discretion.
As a single program event, the user sets:
The start time of the event (from 00 h : 00 m to 23 h : 59 m) or the time offset relative to sunrise or sunset (±11 h : 59 m)
Load relay status (enabled or disabled)
Each day, the timer calculates the time of sunrise and sunset and adjusts the time of the event associated with it.
Then, the event time is compared with the internal real-time clock and, if they are equal or the event time is greater than the real time, the Timer will enable/disable the load depending on the state specified in the event.
The above algorithm is performed for each user-defined event. However, if there are more than one events, only the event that is closest to the realtime clock will trigger, and other events will not be executed.
At latitudes where the polar day has occurred, events related to sunset will not be performed, and the time of sunrise is assumed to be 00 h : 00 m.
At latitudes where the polar night has occurred, events related to sunrise will not be performed, and the sunset time is assumed to be 00 h : 00 m.
Figure 2 shows an example of an astronomical programme where the schedule is set for the whole week – 4 events for each day, for street lighting – 4 hours after sunset and 4 hours before dawn, the rest of the time the lighting is turned off.
Figure 3 shows an example of a weekly program, where the schedule is set for the entire week and includes fourteen events to enable and disable the load every day at a certain time.
When describing the operation of the Timer, the default settings are used.
After connecting EM-130 to the power supply network, its parameters are initialized for 2 seconds, then the timer begins to turn on/off the load according to the schedule set by the user.
Besides, after EM-130 is connected with the supply network, the timer Wi-Fi switches to the mode set by the user («Wi-Fi access point», «Wi-Fi network client» or «Wi-Fi is OFF»).
Depending on the selected settings, the Web-interface of the timer (on port 80) or the Modbus TCP server (on port 502) is started.
If the timer operates in the «Wi-Fi network client» mode, and there are connections to the «Internet», then:
Time synchronization with the NTP server is performed every 2 hours (provided that synchronization is enabled in the timer settings)
A connection is being made to the Overvis server (provided that the connection is enabled in the timer settings) – to provide remote access from the «Internet» to the timer
When a manual control command is received (from the Web interface via the Modbus TCP protocol or the Overvis server), the execution of the currently scheduled event is blocked, the load is turned off (or turned on depending on the command), and the EM-130 switches to manual control mode (disable manual control to return the timer to the scheduled operation mode).
EM-130 creates its own access point with the name and password specified by the user during setup.
The user, upon connecting to this access point, and in the browser (Opera, Chrome, Firefox, etc.), after going to «http://192.168.4.1», gets access to the management and settings of EM-130.
EM-130 automatically connects to the user-defined access point and starts all enabled services (Web-interface, Modbus TCP, and Overvis client).
The management and settings of EM-130 can be accessed via Modbus TCP, the Overvis client, or the Web-interface at the IP address issued to the timer by the router when connecting (for information on how to get the data on the current issued address, please refer to the Operating Instructions for the corresponding router).
If there is no Wi-Fi connection, the EM-130 will automatically try to connect again every 10-15 seconds.
EM-130 creates its own access point with the name «EM-130_xxxxxx» (where xxxxxx is the unique Timer’s code) and password «00000000».
The user, upon connecting to this access point, and in the browser (Opera, Chrome, Firefox, etc.) after going to «http://192.168.4.1», gets access to the Timer’s settings.
To ensure the reliability of electrical connections, use flexible (multi-wire) wires with insulation for a voltage of at least 450 V, the ends of which must be stripped of insulation by 5±0.5 mm and compressed with bushing tips. Fixing the wires must prevent mechanical damage, twisting and erasing of the wires’ insulation.
The wire cross-section for connecting a load of 1.44 kW must at least be 1.0 mm².
For reliable contact, tighten the terminal block screws with a force of 0.4 N·m.
The «Wi-Fi» button (Fig. 1, item 2) is used to control the Timer from the front panel.
When the «Wi-Fi» button is pressed and held, the «On/Off» indicator (Fig. 1, item 3) starts flashing with a period of 1 second helping to count down the time of holding the button.
When the button is released, the command depending on the button holding time starts to be executed, and the «On/Off» indicator starts flashing with a period of 0.15 seconds for 3 seconds.
Table 2 – Wi-Fi button commands
Holding time
Command
1 – 3 s
Restart the timer
5 – 8 s
Switches the Timer over to the Wi-Fi connection setup mode
To enter the Wi-Fi connection setup mode, use a thin non-metallic object (for example, a toothpick) and press and hold the «Wi-Fi» button on the front panel of the Timer (Fig. 1, item 2) for 5-8 seconds.
After 5-8 seconds, release the button. In this case, the «On/Off» status indicator will start blinking rapidly (period 0.15 seconds) for 3 seconds.
The Timer will create the access point named «EM-130_xxxxxx», where xxxxxx is the unique Timer’s code (see The Timer’s Main Screen).
Use an electronic device (PC with Wi-Fi, phone, tablet, laptop, etc.) to connect to the access point using the following parameters:
Access point name «EM-130_хххххх»
Password «00000000»
Launch the browser (Chrome, Opera, Firefox, etc.) on an electronic device. Enter «http://192.168.4.1» in the browser’s address bar and follow the link you entered.
The screen of the electronic device will display the Web-interface of the Timer and prompt you to enter the password (The Timer password entry screen).
Enter «admin» in the «PASSWORD» field, and click «Login».
After going to the main screen press the «MENU» button.
Then, select «SETTINGS» in the menu.
Configure the Timer’s Wi-Fi:
Network name (SSID) – is the name of the Wi-Fi network
Network password – is the password for the Wi-Fi network
Working mode – is the Timer’s Wi-Fi mode
IP settings – are the settings for the IP address, subnet mask, and gateway address (which are automatically configured by the DHCP server by default)
MAC address – is the unique address of the Timer
IP address – is the current IP address of the Timer
Channel – the current frequency channel of Wi-Fi operation
To save the settings, click the «Save» button.
When the settings are saved, the screen of the electronic device will display a message about the successful saving of the settings and requesting to restart the Timer.
If necessary, configure the remaining parameters.
Restart the Timer by clicking the «Reboot device» button at the bottom of the page.
If the «Working Mode» was specified as a Wi-Fi client, wait for the EM-130 to connect to the specified Wi-Fi (the status indicator will stop flashing blue frequently).
11. Connecting to the Timer via the local Wi-Fi network
Control and configuration via a local Wi-Fi network is only possible after preconfiguring the Wi-Fi connection (see Wi-Fi connection setting up) and enabling remote access via the Web-interface in the product settings.
In the router settings, you must reserve the IP address of the product by its MAC address (see the Operating Instructions for the router). Or when setting up a Wi-Fi connection, you need to set the «Custom» in the «IP Settings» field and specify static settings:
IP address – is an unoccupied address in your network (for example: 192.168.0.105 or 10.0.0.5)
Subnet mask – is your subnet mask (example: 255.255.255.0 or 255.0.0.0)
Main gateway – is your router’s IP address (example: 192.168.0.1 or 10.0.0.1)
DNS1 – is the primary name server (example: 208.67.222.222)
DNS2 – is the secondary name server (example: 8.8.8.8)
Enter the link «http://192.168.0.105» in the address bar of the browser (Chrome, Opera, Firefox, etc.) of the electronic device (PC, laptop, mobile phone, tablet, etc.) and follow it (where 192.168.0.105 is a specified static IP address of the Timer, which may be reserved on the router).
When the password entry page will be displayed (The Timer password entry screen) on the screen of the timer, from which the transition was performed, enter the password («admin», by default) and click «Login».
Control and configuration via Modbus TCP is only possible after preconfiguration Wi-Fi connections (see Wi-Fi connection setting up) and enabling the remote access via Modbus TCP in the Timer settings.
The Modbus TCP communication protocol allows you to connect EM-130 to the network organized according to the Ethernet standard. Using EM-130 in the network allows you to perform the following functions:
Data collection in SCADA systems
Programming EM-130 via a PC (using specialized programs that work with the Modbus TCP protocol)
Remote control of EM-130 within the local network
When connecting to EM-130, access to the command register and the write-in function is blocked (the read function is not blocked). To unlock the register of command and the write-in function, insert the access code in ASCII characters (default value: «admin») in registers 101 – 164. Write zero values (0000h) in unused registers.
If the access code value is correct, EM-130 will unlock access to the register of command and the write-in function.
After changing the settings is completed, write the value 51930 in the Command Register (a record for the non-volatile (flash) memory). For the changes to take effect, write the value 17513 to the command register (EM-130 restart).
If the write-in functions or access to the command register are not used for a long period of time, block access to them by writing a value other than the access code (for example, 0000h) in registers 101 – 164.
If there is no data exchange within 60 seconds, EM-130 automatically breaks the connection with the client.
In EM-130, all values with a dot are represented as integers. Therefore, additional mathematical operations must be applied when processing the data.
Before writing a value with a dot to EM-130 (for example: 1.000), convert it to an integer by multiplying the value by a factor (1000), and then the result may be written to EM-130.
On a request to read the value with a dot (for example: 1.000), EM-130 returns an integer (1000). To convert the integer to the correct form, divide this number by the conversion factor (1000).
The conversion factor to an integer is determined by the number of decimal places (1.0 – 10; 1.00 – 100; 1.000 – 1000).
Overvis is a system for monitoring, visualization and remote control of technological processes.
Overvis allows you to:
Perform round-the-clock periodic data reading
Save data automatically to your own database
View data in a convenient form
Receive alerts about accidents in the form of SMS or E-Mail
Information that is more detailed can be found on the official website www.overvis.com.
The Overvis system acts as a server for collecting data from EM-130 and other devices connected simultaneously, and provides real-time data access only with the permission of the EM-130 owner.
The Manufacturer’s settings of EM-130 are prepared for connecting to the Overvis server, while the Overvis client themselves are disabled in EM-130 and must be activated manually by the User.
Connect to a Wi-Fi hotspot with the help of an electronic device (PC with Wi-Fi, phone, tablet, laptop, etc.) using the Wi-Fi name and password earlier specified by the user when configuring the Timer (see Wi-Fi connection setting up).
Enter the link «http://192.168.4.1» in the electronic device browser address bar (Chrome, Opera, Firefox, etc.) and navigate through it.
When the password entry page will appear on the screen of the timer, from which the transition was made enter the password («admin», by default) and click «Login».
15. Connecting to the Timer in the none-Wi-Fi mode
Correction of the real-time clock enables compensating for the time lost by the real-time clock due to the influence of external factors on the Timer (such as temperature, humidity, etc.) within one day, from minus 20.9 s to +20.9 seconds.
Correction of the clock is performed in the group of parameters «Date and Time».
Example: If the clock is 4.2 seconds slow per day, you must specify a correction value of +4.2 seconds, and if the clock is 4.2 seconds fast, you must specify a correction value of minus 4.2 seconds.
Using a thin non-metallic object (such as a toothpick), press and hold the «Wi-Fi» button for 1-3 seconds on the front panel of the Timer. In this case, the «On/Off» indicator will flash rapidly (0.15 s) for 3 seconds, and the Timer will automatically restart.
Using a thin non-metallic object (such as a toothpick) press and hold the «Wi-Fi» button for 10-15 seconds on the front panel of the Timer. In this case, the «On/Off» indicator will start flashing every second (helping to count down the time).
Release the «Wi-Fi» button. In this case, the «On/Off» indicator will start flashing rapidly (a period of 0.15 seconds).
When the operation has been completed, the status indicator will stop flashing and the Timer will automatically restart.
The Timer has been reset to factory settings and is ready for use.
On the main screen of the Web-interface, click the menu button. Then, in the menu select «SCHEDULE».
On the schedule screen, click the «New event» button, and the screen will display the input field for the new event.
In EM-130, you can create two types of events, normal, or associated:
Normal event implies one event – enable (or disable) the load at the specified time
Associated event involves two actions – turn on the load at the specified time, and then turn off the load at the specified time. In this case, the turn-on time should be less than the turn-off time
Switching between a normal event and an associated event is performed by the parameter «This is a related event».
Custom event fields:
Condition of loading – the action that will be performed by the event (enabling / disabling the load)
Trigger time – the time when the event is triggered
Trigger days – the event trigger days
Load ON – the time when the load of the associated event is turned on
Load OFF – the time when the load of the associated event is turned off
Press the «Add» button to add an event.
Press the «Close» button to quit the event-adding mode.
The product in the original package is permitted to be transported and stored at the temperature from minus 45 to +60 °C and relative humidity of no more than 80%. During transportation of the product, protection from mechanical damages must be ensured.
