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Summary of Contents for OJ Electronics DV
- Page 1 INSTRUCTIONS OJ DV OJ Drives ® A DRIVES PROGRAMME DEDICATED TO VENTILATION SOLUTIONS...
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Page 2: Table Of Contents
Checklist – mechanical and electrical installation ........18 Hand terminal (OJ-DV-HMI-35T ) – connection and functions ......19 OJ-DV-PC-Tool –... - Page 3 OJ Electronics. The OJ trademark is a registered trademark of OJ Electronics A/S. © 2023 OJ Electronics A/S Notice! The language used in the original documentation is English.
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Page 4: Product Presentation
Mains voltage must always be disconnected before any installation, service or maintenance tasks are performed on the product. 4.6. When the OJ DV is connected to the mains, there is a risk that the motor could start unintentionally, causing a risk of dangerous situations and personal injuries. 4.7. -
Page 5: Product Use
The OJ DV is especially used in ventilation applications (fans). 5.2. The OJ DV can also be used in other applications. If the OJ DV is used in applications where it cannot be positioned directly in a flow of air, impaired OJ DV cooling must be taken into account. -
Page 6: Product Standard
EN/BS-61000-6-4 • In accordance with EN/BS 61800-3 – Adjustable speed electrical power drive systems. Part 3. EMC requirements and specific test methods. The OJ DV 600V has a built in EMC filter but does not comply with EN/BS 61800-3. • The OJ DV product line fulfils the “residential level” for emissions as per EN/BS-61000-6-3 and the “industrial level”... -
Page 7: Product Programme
220 x 294 x 107 mm All 3x380-480V versions can also be connected to 3x230V. The power output (kW) will, however, be limited to max. 58% (1/√3) of the rated power output at 3x380-480V. OJ DV 600V is not certified in accordance to EN/BS 61800-3 Caution With enclosure sizes H3 ... -
Page 8: Rating Plate
Product ID = see figure 9.4. 9.3. Explanation of product code Shaft power at nominal voltage Each and every OJ DV is given its own product Max. input voltage, Hz/A code during manufacture. Max. output voltage/Hz/A The product code (see table 9.3) gives precise Product code = see table 9.3. -
Page 9: Installation
INSTRUCTIONS OJ DV | Installation Figure 9.4 Exploded and dimensioned drawings Figure 10.1 Table 10.1 No. Description No. Description Motor connection terminals RJ12 RS-485 interface connector (2 x Slave & 1 x Master) Connections for future use 3-point stain relief for RS-485 ribbon cable Connector for optional modules Power terminals (H1=L, N, PE);... -
Page 10: Dimensioned Drawings
INSTRUCTIONS OJ DV | Installation Dimensioned drawings Figure 10.2 Figure 10.3 52.25 40.5 52.25 40.5 52.25 40.5 52.25 40.5 Figure 10.4 Figure 10.5 66.5 29.5 20.7 54.5 34.5 107.5 21.5 68.5 55.2 Figure 10.6 52.25 40.5 40.5 52.25 184.5 © 2023 OJ Electronics A/S... -
Page 11: Mechanical Installation
• The OJ DV must only be installed by trained/experienced personnel. • To ensure proper cooling of the OJ DV, it must be positioned in such a way that the passing air flow (> 3 m/s turbulent air speed) can cool the OJ DV cooling fins. (3 m/s turbulent air speed is equivalent to 6.5 m/s laminar air speed). -
Page 12: Electrical Installation
This product can cause a DC current in the ground protective conductor in the event of a ground fault. If the 3 phases to the OJ DV are not switched in at exactly the same time, then there will be a generated current in the earthing/ground conductor during the switching time until all 3 phases are connected. -
Page 13: Potential Equalisation
12.5 Potential equalisation • There is a risk of electrical interference if the ground potential between the OJ DV and the air handling unit or duct differ from each other. • An equalisation conductor must always be fitted to prevent potential differences between system components. -
Page 14: Opening The Oj Dv
• Check that the voltage supply to the OJ DV has been disconnected before opening the cover. • Wait approx. 3 minutes after disconnecting mains voltage before removing the cover. • The OJ DV is opened by loosening the six Torx 20 screws holding the plastic cover in place. • Carefully remove the loosened cover. -
Page 15: Terminal And Connector Overview
INSTRUCTIONS OJ DV | Installation • Solid and multi-core cables/leads can be used. • Stripped wire ends or end sleeves must be between 8 and 15 mm. • Wires can be removed by carefully loosening the terminal spring by pressing lightly with a screwdriver or similar implement. -
Page 16: Mains Voltage Connection
• It is recommended that the PE wire is 20 mm longer than the other wires in the cable. If the cable is accidentally pulled out of the OJ DV while there is voltage on the cable and terminals, the PE wire will then be the last to be disconnected. -
Page 17: A/D Control Signal Connections
INSTRUCTIONS OJ DV | Installation • The OJ DV is ready to be installed in to, either a daisy chain or star Modbus network. Every OJ DV has a preinstalled Modbus termination resistor of size 1 kΩ, which in most applications would be sufficient. -
Page 18: Closing Of Oj Dv
Product conformity Check that the mains voltage on the supply terminals corresponds to the rated input voltage of the OJ Check the rating plates of the motor and OJ DV to ensure that the units have been sized correctly. Mechanical Check that the OJ DV is correctly and securely attached to a flat surface. -
Page 19: Hand Terminal (Oj-Dv-Hmi-35T ) - Connection And Functions
Check that all cables are securely attached and relieved of tension and torsion. Electrical installation Check that cables have been correctly inserted into the OJ DV and that the cable glands have been correctly tightened. Check that the OJ DV voltage supply terminals have been connected to the correct mains voltage level. -
Page 20: Oj-Dv-Pc-Tool - Connection And Functions
Tool instructions or contact OJ Electronics A/S. Optional modules – connection and function • Various optional modules can be connected to OJ DV, providing extra versatility where the unit is to be built into systems and applications that require additional inputs and outputs. -
Page 21: Rs-485 Interface Control
The OJ DV can be set to operate constantly with a switching frequency of either 4 kHz or 8 kHz, or it can be set to change switching frequency automatically depending on motor speed (AUTO setting). -
Page 22: Frequency Converter Mode - For Asynchronous Motors
Functions digital input. In fire mode, the OJ DV is able to maintain operation for at least an hour, even when the OJ DV and the fan motor are overheated (max. 70°C). There are three different fire mode to choose from; normal-, max-, and analog fire mode. -
Page 23: Electronically Commutated Mode (Ec Mode) - For Pm Motors
Pay special attention to the following parameters: Minimum frequency Even if the control signal is e.g. 0% or 0.0V and the OJ DV has an activated start signal, the motor will not run slower than the value in this parameter. -
Page 24: Jumping Frequency
Pay special attention to the following parameters: Even if the control signal is e.g. 0% or 0.0V and the OJ DV has an activated start signal, the motor will not run slower than the value in this parameter. Maximum rpm Even if the control signal is e.g. -
Page 25: Built-In Protection
• The OJ DV has built-in current limitation for the protection of motor and cables and cannot therefore supply more current than it is set to. • In the event of lacking phase on the supply input, the OJ DV will reduce speed and activate a non-critical alarm. -
Page 26: Led Indications
• Flashes green when RS-485 interface communication is active • Lights constantly red when at least one critical alarm is active • The LED can be set (Show alarm on LED) by Modbus or OJ-DV-PC-Tool to flash in a sequence to indicate where the error has arisen. -
Page 27: Modbus Communication
Force Multiple Coils Preset Multiple Registers • Values that are written to the OJ DV via Modbus are rounded off to the nearest valid value. Detection of active Modbus • The OJ DV automatically detects valid Modbus communication on the Modbus inputs (RJ12 connector or “A”... -
Page 28: Maintenance And Troubleshooting
Caution 23.3. The cooling fins may become very hot. (Max. 95°C under normal operating conditions.) Warning 23.4. The OJ DV cannot be repaired on site. Never attempt to repair a defective unit. Contact your supplier © 2023 OJ Electronics A/S... -
Page 29: Troubleshooting
Troubleshooting Warning 24.1. Before opening the OJ DV, the mains voltage must be disconnected for at least 3 minutes to ensure there is no risk of dangerous residual currents in electronic circuits or capacitors. 24.2. If natural drafts through the duct system cause the fan to rotate even though it has received no operating signal, there is a risk that the motor will induce voltage on the OJ DV motor terminals, making them dangerous to touch. -
Page 30: Storage
Read out the alarm via RS-485 interface registers and determine which alarm has stopped the controller/motor. Remedy the cause of repeated alarm activation. Storage The OJ DV should be stored indoors, if possible in the original packing. Recommended: a dry © 2023 OJ Electronics A/S... -
Page 31: Disposal
Fuse and Circuit Breaker Specifications room with temperatures between -40°C and +50°C and a relative humidity below 70%. When the OJ DV is stored as recommended, the drive can be stored for years from the date of manufacture. Disposal • The OJ DV contains electronic components and must not be disposed of together with household waste. -
Page 32: Technical Specifications
OJ Electronics A/S Stenager 13B • DK-6400 Sønderborg Tel. : +45 73 12 13 14 • Fax +45 73 12 13 13 oj@ojelectronics.com • www.ojelectronics.com The trademark is a registered trademark belonging to OJ Electronics A/S · © 2023 OJ Electronics A/S...
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