Nidec H300 - Supply and Ground Cable Clearance (Size 7 Onwards); Grounding the Drive, Motor Cable Shield and Filter; Sensitive Signal Circuit Clearance

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102 HVAC Drive H300
Issue Number: 3
Figure 4-37 Supply and ground cable clearance (size 7 onwards)
Ensure the AC supply and ground cables are at least 100 mm from the
power module and motor cable.
Figure 4-38 Sensitive signal circuit clearance
Avoid placing sensitive signal circuits in a zone 300 mm (12 in) in the
area immediately surrounding the power module. Ensure good EMC
grounding.
Figure 4-39 Grounding the drive, motor cable shield and filter
Connect the shield of the motor cable to the ground terminal of the motor
frame using a link that is as short as possible and not exceeding 50 mm
(2 in) long.
100mm (4in)
100mm (4in)
100mm
(4in)
Sensitive
signal
cable
³300 mm
(12 in)
Ensure direct
metal contact
at drive and
filter mounting
points (any
paint must be
removed).
Motor cable shield
(unbroken) electrically
connected to and held
in place by grounding
clamp.