NSK Megatorque PS Series User Manual

Conditions to Conform with EC Directives
The wiring example shown below is one of our recommendations for the conformity with the EC Directives.
Figure 1: Wiring diagram (Example)
Resolver
EDC Driver Unit
AC power
source
Protective
ground
Main
power
CN5
Control
power
CN4
CN3
Noise
filter
Circuit
breaker
L
N
L
N
Inside of
control
panel
CN1
N
N
Handy
Terminal
Ferrite
core 1
(
3 turns
)
Ferrite
core 3
(1 turn)
Ferrite core 3
(2 turns)
Ferrite
core 3
(1 turn)
PS Series
Megatorque Motor
Motor
Surge
absorber
Ferrite
core 2
(
2 turns
)
 Environmental conditions
The Driver Unit must be used in the environmental condition of Pollution Degree1 or 2 as specified
by IEC60664-1. The Driver Unit shall be installed into a control panel with the structure that does not
allow penetration of water, oil or dust (IP54).
 Power source
The EDC Driver Unit shall be used in the environmental condition of “Over-voltage category III” as
specified by IEC60664-1.
 Circuit breaker
Install a circuit breaker that conforms to IEC standard and UL safety standard between the power
source and the Driver Unit.
 Noise filter
Install a noise filter between the power source and the Driver Unit.
 Ferrite core
Ferrite cores for signal cable shall be set to the power cable, the Motor cable and the resolver cable.
 Protective Grounding
Be sure to ground the protective grounding terminal of the EDC Driver Unit to the protective ground
(PE) of the control panel for a measure against electrical shock.

NSK Megatorque PS Series Specifications

General

Brand	NSK
Model	Megatorque PS Series
Category	Engine
Language	English