© 2016 OJ Electronics A/S
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INSTRUCTIONS OJ-DV | General
4.11. OJ-DV contains capacitors which become charged during operation. These capacitors can remain
charged even after the power supply has been cut o. There is a risk of severe personal injury if
the connection terminals or wire ends are touched before these capacitors have been completely
discharged. The discharge time is about 3 minutes under normal conditions.
5. Product use
5.1. OJ-DV is especially used in ventilation applications (fans).
5.2. OJ-DV can also be used in other applications. If 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. This can
be countered by creating additional ventilation around the product or by reducing performance
requirements. See Section 25. Technical specifications.
5.3. OJ-DV is an electronic motor controller used to regulate fan speed. OJ-DV can be used to control AC
asynchronous motors, BLDC motors and PM motors.
5.4. Depending on what is needed, OJ-DV is suitable for stand-alone applications or as part of larger
systems/machines.
5.5. The product can be used under various environmental conditions. See Section 25. Technical
specifications.
5.6. OJ-DV can be fitted directly to the frame of the fan motor, thus saving space.
5.7. Motor operation can be regulated by commands from an external controller.
5.8. OJ-DV has built-in motor protection.
5.9. OJ-DV can be used in domestic and industrial environments and has a built-in EMC filter.
5.10. The OJ-DV is developed for use in industry and defined as professional equipment according to
EN 61000-3-2:2014, it is not intended for sales to the general public.
Warning
6. Prohibition on use
• The OJ-DV must not be taken into use until the machine or product into which it is incorporated
has in its entirety been declared to be in conformity with all relevant national and international
regulations.
• The product must not be energised until the entire installation complies with ALL relevant EU
directives.
• The product carries a manufacturer's warranty if installed in accordance with these instructions
and applicable installation regulations.
• If the product has been damaged in any way, e.g. during transport, it must be inspected and
repaired by authorised personnel before being connected to the power supply.
• If OJ-DV is built into machinery with rotating parts, e.g. a ventilation system, transport system,
etc., the entire system must comply with the Machinery Directive.
7. EMC – Electromagnetic compatibility
• OJ-DV has built-in EMC filter.
8. Approvals and certifications
CE marking
• OJ Electronics A/S hereby declares under sole responsibility that the product complies with the
following European Parliament directives:
• LVD - Low voltage: 2006/95/EU
• EMC - Electromagnetic compatibility: 2004/108/EU
• RoHS - Hazardous substances: 2011/65/EU
Product standard
• In accordance with EN 61800-2 – Adjustable speed electrical power drive systems. Part 2. General
requirements.
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