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INSTRUCTIONS OJ-DV | Installation

12. Mechanical installation

Incorrect mechanical installation may cause overheating and impaired performance.

• 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). If the OJ-DV is installed in a reduced air ﬂow (< 3 m/s

turbulent air speed) or mounted outside a direct airstream, the output power (kW) will be reduced.

External on-board cooling fan can be added.

• Only OJ-DV-1013 can be installed without considering the above requirements for sucient air

ﬂow over the cooling ﬁns. OJ-DV-1013 is supplied with extra large cooling ﬁns and can therefore

be mounted in still air with an air temperature of max. 40°C.

See Section 25: Technical Speciﬁcations.

• To facilitate future service and maintenance tasks, ensure that there is sucient space around the

unit after it has been installed.

• To achieve the speciﬁed enclosure rating, the cable glands must not point upwards (see ﬁg. 12.4).

• To prevent water from entering OJ-DV via cables and cable glands, ensure that connection is

performed in such a way that water is prevented from accumulating around the cable in the gland.

See ﬁg. 12.5.

• Check that the surface to which OJ-DV is attached is capable of supporting the entire weight of

the unit.

• OJ-DV can be mounted vertically, horizontally or at an incline. See ﬁg. 12.4.

• OJ-DV must be installed on a ﬂat solid surface.

• To avoid unnecessarily long motor cables (max. 5 m), OJ-DV should be installed as close to the

motor as possible.

• Use only the pre-cut installation holes/screw holes to secure OJ-DV in place.

• Dimensioned drawings, see ﬁgs 11.2 to 11.6.

Warning

Figure 12.4

BR1014A05a

Figure 12.5

BR1014A26a

OJ Electronics OJ-DV Series User Manual

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