Removing The Terminal Cover; Routine Maintenance; Ip66 (Nema 4X) Gland Plate And Lock Off - Invertek Drives Eco Optidrive Series User Manual

3.8. Removing the Terminal Cover

All IP55 & IP66 enclosed models use quarter turn fasteners to secure the covers. The fastener positions are marked as shown below. The
following diagrams show the open and closed (lock) position of the fasteners. Apply a slight pressure to the cover whilst turning the
fastener to aid release.
Terminal Cover Release Quarter Turn Fasteners
Locked (Closed) Postion

3.9. Routine Maintenance

The drive should be included within the scheduled maintenance program so that the installation maintains a suitable operating
environment, this should include:

Ambient temperature is at or below that set out,in,the,"Environment",section,with,any,relevant,derating,applied

Heat sink fans (where fitted) freely rotating and are dust free.

If the drive is mounted within an enclosure
o
Ensure this is free from dust and condensation
o
Ensure sufficient ventilation of fresh clean cooling air is provided
o
Ensure any panel ventilation fans and air filters are clean and provide the correct required air flow.

Checks should also be made on all electrical connections, ensuring screw terminals are correctly torqued; and that power cables
have no signs of heat damage.

3.10. IP66 (Nema 4X) Gland Plate and Lock Off

The use of a suitable gland system is required to maintain the appropriate IP / Nema rating. Cable entry holes will need to be drilled to suit
this system. Some guidelines sizes are defined below:
Please take care when drilling to avoid leaving any particles within the product.
Cable Gland recommended Hole Sizes & types:
Min Gland Rating
Size 2 IP66
Size 3 IP66

UL rated ingress protection ("Type " ) is only met when cables are installed using a UL recognized bushing or fitting for a flexible-
conduit system which meets the required level of protection ("Type")

For conduit installations the conduit entry holes require standard opening to the required sizes specified per the NEC

Not intended for rigid conduit system
Power Isolator Lock Off – IP66 with Built in Isolator Option
On the switched,models,the,main,power,isolator,switch,can,be,locked,in,the,'Off',position,using,a,20mm,standard,shackle,padlock,(not
supplied).
IP66 / Nema 12 Unit Lock Off
12
Optidrive Eco User Guide Revision 2.01
Hole Size
1 x 20.5mm and 2 x 28.3mm
1 x 20.5mm and 2 x 28.3mm
Unlocked (Release) Position
Imperial
1 PG13.5 and 2 PG21
1 PG13.5 and 2 PG21
IP66 / Nema 4X Unit Lock Off
Metric
1 x M20 and 2 x M25
1 x M20 and 2 x M25
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