98 - PVD 3664_GB_NK-November 2016.Docx
4.6. Tests
The motor components delivered by Parker are tested :
•
dielectric test,
•
surge test,
•
winding resistance and inductance,
•
direction of rotation,
•
rotor flux.
But complete motor must be tested for safety reason and to comply with the
regulations (CE,…).
Danger :
The integrator must certify the motor by an approved
organism to comply with all the regulations (CE, UL, …) and perform
all the mandatory routine tests (exemples : IEC60034…).
The typical process is the qualification of a complete unit and routine
tests (including safety tests) on each unit produced
Exemple of a summary of the recommended safety tests, to be validated bu an
approved organism.
Attention : other could be needed in accordance with regulations:
•
The continuity of the grounding circuit
:
On
each
complete unit, the resistance between any conductive point and the
grounding conductor shall not exeed than100m
. This test shall be performed
before the dielectric tests. (EN60204-1: Safety of the machine)
•
Below exemples of dielectric
tests performed on
each
complete unit (Sefelec
SMG50 can be used) for a 400V supply :
Dielectric
Test
Motor
U,V,W
wires
Thermal
sensor
wires
Brake
wires
Resolver
wires
Frame
Test
duration,
depends
on power
Motor
1800V for
400 V
Connected
on Frame
Connected
on Frame
Connected
on Frame
0V
1min
Thermal
sensor
Connected
on Frame
1500V
Connected
on Frame
Connected
on Frame
0V
1min
Resolver
Connected
on Frame
Connected
on Frame
Connected
on Frame
620V
0V
1s
Brake
Connected
on Frame
Connected
on Frame
500V
Connected
on Frame
0V
1min
Encoder
Check with encoder supplier for tests to be done
…
…
Summary of Contents for NK Series
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