WARNING
Read and understand this manual before installing, operating, or servicing this drive. All
warnings, cautions, and instructions must be followed. All activity must be performed by qualified
personnel. The drive must be installed according to this manual and local codes.
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 inside the left side of the drive). 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 (U/T1, V/T2, W/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 set (locked) closed to ensure the load does not move. If the electric brake cannot
be released, you must ensure that the brake is disengaged for the entire tuning process.
Do not connect or disconnect wiring while the power is on. Do not remove covers or touch circuit
boards while the power is on. Do not remove or insert the digital operator while power is on.
Before servicing, disconnect all power to the equipment. The internal capacitor remains charged
even after the power supply is turned off. The charge indicator LED will extinguish when the DC
bus voltage is below 50 VDC. To prevent electric shock, wait at least ten minutes after all
indicators are OFF and measure DC bus voltage level to confirm safe level.
Do not perform a withstand voltage test on any part of the unit. This equipment uses sensitive
devices and may be damaged by high voltage.
The drive is suitable for circuits capable of delivering not more than 30,000 RMS symmetrical
Amperes, 240 VAC maximum (230 V Class) and 480 VAC maximum (460 V Class). Install
adequate branch circuit short circuit protection per applicable codes. Failure to do so may result
in equipment damage and/or personal injury.
Do not connect unapproved LC or RC interference suppression filters, capacitors, or overvoltage
protection devices to the output of the Drive. These devices may generate peak currents that
exceed drive specifications.
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