Magnetek IMPULSE VG+ Series 3, Instruction Manual, Page: 8 / 183

IMPULSE•VG+ Series 3 Instruction Manual - 07/25/05
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The instructions in the next three chapters apply to most IMPULSE•VG+ Series 3 crane, hoist, and
monorail applications. However, you need to carefully evaluate your specific situation and ensure
that you follow NEC codes and your local wiring practices.
These chapters tell you how to install IMPULSE•VG+ Series 3 and, to some extent, the components
that it interconnects. It explains how to: assess the drive’s environment, mount the drive, and wire
the drive circuits. It’s important to develop a “plan of attack” for both the mounting and wiring since
each task has an effect on the other one. To assist you, “IMPULSE•VG+ Series 3 Wiring Practices”
is included.
NOTE: If your IMPULSE•VG+ Series 3 is part of an Electromotive Systems, pre-engineered
TCONTROLS
®
motor control panel, disregard this chapter and turn to Chapter 4.
WA R N I N G
Do not touch any circuitry components while the main AC power is on. In addition, you must
wait until the red “CHARGE” LED is out before performing any service on that unit. (As you
look at the face of the circuitry, the “CHARGE” LED is located in the lower right corner of the
board.) It may take as long as 10 minutes for the charge on the main DC bus capacitors to drop to
a safe level.
Do not check signals during operation.
Do not connect the main output terminals (T1, T2, T3) to the incoming, three-phase AC source.
Before executing Auto-Tuning, ensure that the motor is disconnected from the drive train and the
electric brake is released. If the electric brake cannot be released, you must ensure that the brake
is disengaged for the entire tuning process.