Protection - Toshiba Q9 Plus Bypass ASD Installation & Operation Manual

Protection

• Ensure that primary protection exists for the input wiring to the equipment. This protection must be
able to interrupt the available fault current from the power line. The equipment may or may not be
equipped with an input disconnect (option).
• All cable entry openings must be sealed to reduce the risk of entry by vermin and to allow for
maximum cooling efficiency.
• If using multiple motors, provide separate overload protection for each motor, and use V/f control.
• It is the responsibility of the person installing the Q9 Plus Bypass ASD/Q9 Plus Bypass Box or
the electrical maintenance personnel to setup the Emergency Off braking system of the Q9 Plus
Bypass ASD/Q9 Plus Bypass Box. The function of the Emergency Off braking function is to
remove output power from the drive in the event of an emergency. A supplemental braking system
may also be engaged in the event of an emergency. For further information on braking systems, see
DC Injection Braking in the Q9 Plus ASD Installation & Operation Manual.
Note:
• Follow all warnings and precautions, and DO NOT exceed equipment ratings.
6
A supplemental emergency stopping system should be used with the
Q9 Plus Bypass ASD/Q9 Plus Bypass Box. Emergency stopping
should not be a task of the Q9 Plus Bypass ASD/Q9 Plus Bypass Box
alone.
Q9 Plus Bypass ASD/Bypass Box Installation and Operation Manual