Toshiba HX7+ ASD - System Setup Requirements

HX7+ ASD Installation and Operation Manual 9
System Setup Requirements
• When using the ASD as an integral part of a larger system, it is the responsibility of the ASD
installer/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).
• Power factor improvement capacitors or surge absorbers MUST NOT be installed on the three-
phase output of the ASD.
• Use of the built-in system protective features is highly recommended (i.e., Emergency Off,
Overload Protection, etc.).
• The operating controls and system status indicators should be clearly readable and positioned
where the operator can see them without obstruction.
• Additional warnings and notifications shall be posted at the equipment installation location as
deemed required by
Qualified Personnel.
• 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
system damage or injury to personnel (i.e., Emergency 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 and Retry settings is a requirement to use this
product.
• The setup procedures included within this manual may require a Reset before performing the
procedure. Application-specific settings may then be performed. The pre-Reset conditions may be
saved (see
F007).
• 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. Warning signs to this effect must be
clearly posted at or near the machinery/hazard.
• If a secondary magnetic contactor (MC) or an ASD output disconnect 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, or W).
• When using an ASD output disconnect, the ASD and the motor must be stopped before the
disconnect is either opened or closed. Closing the output disconnect while the 3-phase output of the
ASD is active may result in equipment damage or injury to personnel.
CAUTION