AutomationDirect DURAPULSE GS3-2010, User Manual

Page: 48 / 316

Chapter 2: Installation and Wiring
2–24
Please refer to Appendix A for specifications on DURA
PULSE
AC Drive Accessories.
Motor
L1
L3
L2
T1 T3 T2
+
–
From power supply
DURA
PULSE
AC Drive
GS3-xxxx
+2
Motor grounding
terminal
1
2
3
4
6
8
7 7
20hp & Over
5
6
Power Supply
Please follow the specific power supply requirements
shown in C
HAPTER
1
Fuse
Input fuses protect the AC drive from excessive input
current due to line surges, short circuits, and ground
faults. They are recommended for all installations and
may be required for UL-listed installations.
Contactor (Optional)
Do NOT use a power circuit contactor or disconnect
switch for run/stop control of the AC drive and motor.
This will reduce the operating life cycle of the AC drive.
Cycling a power circuit switching device while the AC
drive is in run mode should be done only in emergency
situations.
AC Line Reactor (Optional)
Input line reactors protect the AC drive from transient
overvoltage conditions typically caused by utility
capacitor switching. Input line reactors also reduce
harmonics associated with AC drives, and are
recommended for all installations.
EMI filter (Optional)
Input EMI filters reduce electromagnetic interference or
noise on the input side of the AC drive. They are required
for CE compliance and recommended for installations
prone to or sensitive to electromagnetic interference.
RF filter (Optional)
RF filters reduce the radio frequency interference or noise
on the input or output side of the inverter.
Braking Unit and Braking Resistor (Optional)
Dynamic braking allows the AC drive to produce
additional braking (stopping) torque. AC drives can
typically produce between 15% & 20% braking torque
without the addition of any external components.
Optional braking may be required for applications that
have high inertia loads or require rapid deceleration.
AC Line Reactor (Optional)
Output line (load) reactors protect the motor insulation
against AC drive short circuits and IGBT reflective wave
damage, and also “smooth” the motor current waveform,
allowing the motor to run cooler. They are recommended
for operating “non-inverter-duty” motors, and when the
length of wiring between the AC drive and motor exceeds
75ft.
External Accessories
(continued)
DURA
PULSE AC Drive User Manual 1st Ed. Rev. D 05/2013