Toshiba H9 operation manual System Setup Requirements

System Setup Requirements

•When using the H9 ASD as an integral part of a larger system, it is the responsibility of the

H9 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 H9 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 H9 ASD to start the motor without warning. Signs at the equipment installation must be posted to this effect.

•Power factor improvement capacitors or surge absorbers must not be installed on the output of the H9 ASD.

•Use of the built-in system protective features is highly recommended (i.e., E-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.

•Follow all warnings and precautions and do not exceed equipment ratings.

CAUTION

•If a secondary magnetic contactor (MC) or an ASD output disconnect is used between the H9 ASD and the load, it should be interlocked to halt the H9 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 H9 ASD output terminals (U, V, 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.

8 H9 ASD Installation and Operation Manual