Toshiba W7 DN-57442-006 Installation & Operation Manual Download

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Safety Information and Precautions

W7B ASD Installation & Operation Manual

• See the section titled

Installation and

Connections on pg. 13

for additional

information on installing the drive.

Mounting Requirements

• Only

Qualified Personnel

should install this

equipment.

• Install the unit in a secure and upright

position in a well-ventilated area.

• As a minimum, the installation of the

equipment should conform to the National
Electrical Code — Article 110 (NEC), OSHA, as
well as any other applicable national, regional,
or industry codes and standards.

• Installation practices shall conform to the

latest revision of NFPA 70E Electrical Safety
Requirements for Employee Workplaces.

• It is the responsibility of the ASD installer/

maintenance personnel to ensure that the unit
is installed into an enclosure that will protect
personnel against electric shock.

Conductor Requirements and

Grounding

• Use separate metal conduits for routing the

input power, output power, and control circuits.

• A separate ground cable should be run

inside the conduit with the input power, output
power, and control circuits.

•

DO NOT

connect

to earth ground.

• Always ground the unit to prevent electrical

shock and to help reduce electrical noise.

• It is the responsibility of the ASD installer/

maintenance personnel to provide proper
grounding and branch circuit protection in
accordance with the National Electrical Code
and any applicable local codes.

— T h e M e t a l O f C o n d u i t I s
N o t A n A c c e p t a b l e G r o u n d —

Power Connections

• Turn off and lock out/tag out all power
sources before proceeding to connect the
power wiring to the equipment.

• After ensuring that all power sources are
turned off and isolated in accordance with
established lock out/tag out procedures,
connect the 3-phase power source wiring of the
correct voltage to the correct input terminals
and connect the output terminals to a motor of
the correct voltage and type for the application
(refer to NEC Article 300 – Wiring Methods and
Article 310 – Conductors For General Wiring).
Size the branch circuit conductors in
accordance with NEC Table 310.16.

• Adhere to the recommended conductor sizes
listed in the section titled

Cable/Terminal

Specifications on pg. 196

. If multiple conductors

are used in parallel for the input or output power
and it is necessary to use separate conduits,
each parallel set shall have its own conduit (i.e.,
place U1, V1, W1, and a ground wire in one
conduit and U2, V2, W2, and a ground wire in
another) (refer to NEC Article 300.20 and
Article 310.4). National and local electrical
codes should be referenced if three or more
power conductors are run in the same conduit
(refer to NEC Article 310 adjustment factors).

• Ensure that the 3-phase input power is

NOT

connected to the output of the ASD. This will
damage the ASD and may cause injury to
personnel.

•

DO NOT

install the ASD if it is damaged or if

it is missing any component(s).

•

DO NOT

connect resistors across terminals

PA – PC or PO – PC. This may cause a fire.

• Ensure the phase sequence is correct and
the desired direction of motor rotation in the
Bypass mode (if applicable).