GE Industrial Solutions AF-650 GP Drive Panel - Manual (Page 10)

10
1. Operator Devices
Your Bypass panel is equipped with several panel door mounted operator devices, which may include the
following: one (1) through-the-door, lockable, input device disconnect handle; three (3) operator selector
switches; and six (7) indicator lights. The operation of these devices is explained in this section. Refer to the
Drive Terminal Board I/O section of this manual and wiring diagrams for specifics on wiring connections.
Input Disconnect
The purpose of the panel-mounted input disconnect with through-the-door
handle is to provide a local, lockable method of removing all AC input power
from the bypass panel and AF 650 GP drive.
If your panel includes a circuit breaker, in addition to providing a manual
method of applying and removing AC input power from the bypass panel, the
circuit breaker also provides short circuit protection for the panel components
and the motor.
Test/Isolate/Normal Selector This operator and functionality is only available in the 3 Contactor Bypass
Panels.
This selector has a padlock-able clear plastic cover to allow servicing of the AF
650 GP drive when the selector is in the “Isolate” position. When in the “Isolate”
position, the drive’s line and load contactors are electrically disabled.
DEH40652
– Page 3 AN 11-2021 Rev 06, 12/16/2011
WARNING: Although input power is removed from the drive in
the “Off” position this does not guarantee that dangerous voltage levels
are absent. The AF 650 GP drives contain capacitors which can maintain
dangerous voltage levels for an extended period following removal of AC
input power.
Before touching any potentially live parts of the frequency inverter or
drive, it is always advisable to wait at least 20 mins if not specified.
380-480V, 150-300 HP, wait at least 20 minutes
Shorter time is allowed only if indicated on the nameplate for the
specific unit.
Do not manual drain capacitors.
Always check bus voltage with proper meter before working on drive.
WARNING: Since an improper setting of the circuit breaker trip
level can result in code violations or inadequate short circuit protection
possibly resulting in a fire or safety hazard, refer to the “Adjustments”
section of this manual for further instructions on setting the trip level.