14
WX9 ASD Installation and Operation Manual
Installation and Connections
The
WX9 Adjustable Speed Drive
may be set up initially by performing a few simple configuration
settings. To operate properly, the ASD must be securely mounted and connected to a power source
(three-phase AC input at the
R/L1
,
S/L2
, and
T/L3
terminals). The control terminals of the ASD may
be used by connecting the terminals of the
Terminal Board
(P/N 48570) to the proper sensors or signal
input sources (see the section titled
).
Note:
The optional
ASD-Multicom
boards
may be used to expand the I/O functionality of
the ASD. See the section titled
WX9 ASD Optional Devices on pg. 204
for more
information on the available options.
The output terminals of the ASD (U/T1, V/T2, and W/T3) must be connected to the motor that is to be
controlled (see
).
As a minimum, the installation of the ASD shall conform to the NEC Article 110 (“Requirements for
Electrical Installations”), all regulations of the Occupational Safety and Health Administration, and any
other applicable national, regional, or industry codes and standards.
The
Startup Wizard
assists with the initial configuration of the
WX9 ASD
. The
Startup Wizard
may
be launched from the
or configured to start automatically upon subsequent start ups. See
the section titled
Startup Wizard Requirements on pg. 66
for additional information.
Installation Notes
DO NOT
apply commercial power to the output terminals
U/T1
,
V/T2
, or
W/T3
.
If an output contactor is used for bypass operation, it must be interlocked such that commercial power is
never applied to the output terminals of the ASD (U/T1, V/T2, or W/T3).
If a secondary magnetic contactor
(MC) is used between the output of the ASD and the motor, it should
be interlocked such that the
ST – CC
connection is disconnected before the output contactor is opened.
DO NOT
open and then close a secondary magnetic contactor between the ASD and the motor unless
the ASD is off and the motor is not rotating.
Note:
Re-application of power via a secondary contact while the ASD is on or while the
motor is still turning may cause ASD damage.
Disconnect the ASD from the motor before megging or applying a bypass voltage to the motor.
When a brake-equipped motor is connected to the ASD, it is possible that the brake may not release at
startup because of insufficient voltage. To avoid this,
DO NOT
connect the brake or the brake contactor
to the output of the ASD.
On some devices, the
ST
-to-
CC
connection is further enhanced by the operation of the
MS1 AUX
relay
circuit. The
MS1 AUX
relay circuit is normally open and closes the
ST
-to-
CC
connection (via ST1)
only after normal system power is available. The
MS1 AUX
relay circuit prohibits the
ST
-to-
CC
connection in the event that the
MS1
contactor fails to close during start up or if
MS1
opens while the
ASD is running. This feature is available on the 75 HP and above systems.
CAUTION
Summary of Contents for WX9 ASD
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