Toshiba G7 Quick Start Manual page 12

G7 adjustable speed drive
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Personnel Protection
Installation, operation, and maintenance shall be performed by Qualified Personnel Only.
A thorough understanding of the ASD will be required before the installation, operation, or
maintenance of the ASD.
Rotating machinery and live conductors can be hazardous and shall not come into contact with
humans. Personnel should be protected from all rotating machinery and electrical hazards at all
times.
Insulators, machine guards, and electrical safeguards may fail or be defeated by the purposeful or
inadvertent actions of workers. Insulators, machine guards, and electrical safeguards are to be
inspected (and tested where possible) at installation and periodically after installation for potential
hazardous conditions.
Do not allow personnel near rotating machinery. Warning signs to this effect shall be posted at or
near the machinery.
Do not allow personnel near electrical conductors. Human contact with electrical conductors can be
fatal. Warning signs to this effect shall be posted at or near the hazard.
Personal protection equipment shall be provided and used to protect employees from any hazards
inherent to system operation.
Follow all warnings and precautions and do not exceed equipment ratings.
System Setup Requirements
When using the ASD as an integral part of a larger system, it is the responsibility of the ASD
installer or maintenance personnel to ensure that there is a fail-safe in place, i.e., an arrangement
designed to switch the system to a safe condition if there is a fault or failure.
System safety features should be employed and designed into the integrated system in a manner
such that system operation, even in the event of system failure, will not cause harm or result in
personnel injury or system damage (i.e., E-Off, Auto-Restart settings, System Interlocks, etc.).
The programming setup and system configuration of the ASD may allow it to start the motor
unexpectedly. A familiarity with the Auto-restart settings are a requirement to use this product.
Improperly designed or improperly installed system interlocks may render the motor unable to start
or stop on command.
The failure of external or ancillary components may cause intermittent system operation, i.e., the
system may start the motor without warning.
There may be thermal or physical properties, or ancillary devices integrated into the overall system
that may allow for the ASD to start the motor without warning. Signs at the equipment installation
must be posted to this effect.
If a secondary magnetic contactor (MC) is used between the ASD and the load, it should be
interlocked to halt the ASD before the secondary contact opens. If the output contactor is used for
bypass operation, it must be interlocked such that commercial power is never applied to the ASD
output terminals (U, V, W).
Power factor improvement capacitors or surge absorbers must not be installed on the output of the
ASD.
G7 ASD Quick Start Guide
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
WARNING
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