Preface
This manual is to be used for the installation, parameter setting, troubleshooting, and daily
maintenance of the hybrid servo drive. To guarantee safe operation of the equipment, read the
following safety guidelines before connecting power to the hybrid servo drive. Keep this operating
manual at hand and distribute to all users for reference.
To ensure the safety of operators and equipment, only qualified personnel familiar with hybrid servo
drive are to do installation, start-up and maintenance. Always read this manual thoroughly before
using VFD-VJ series Hybrid Servo Drive, especially the WARNING, DANGER and CAUTION notes.
Failure to comply may result in personal injury and equipment damage. If you have any questions,
please contact your dealer.
Firmware version: V1.06
PLEASE READ PRIOR TO INSTALLATION FOR SAFETY.
DANGER
AC input power must be disconnected before any wiring to the hybrid servo drive
is made.
Even if the power has been turned off, a charge may remain in the DC-link
capacitors with hazardous voltages before the POWER LED is OFF. Do not
touch the internal circuit and components. For safe maintenance, use a
multimeter to measure the voltage across the +1 and – terminals. The measured
value should be lower than 25V
DC
for the system to operate normally.
There are highly sensitive MOS components on the printed circuit boards. These
components are especially sensitive to static electricity. Do not touch these
components or the circuit boards before taking anti-static measures. Never
reassemble internal components or wiring.
Ground the hybrid servo drive using the ground terminal. The grounding method
must comply with the laws of the region where the hybrid servo drive is to be
installed.
This series of products is used to control the three-phase induction motors and
permanent magnet synchronous motors. It cannot be used for single-phase
motors or for other purposes.
This series of products cannot be used on occasions that may endanger
personal safety.
Please prevent children or unauthorized personnel from approaching the hybrid
servo drive.
Never connect the output terminals U/T1, V/T2 and W/T3 of the hybrid servo
drive directly to the AC mains circuit power supply.
After finishing the wiring of the hybrid servo drive, check if U/T1, V/T2, and W/T3
are short-circuited to ground with a multimeter. Do NOT power the drive if short
circuits occur. Eliminate the short circuits before the drive is powered.
DO NOT use Hi-pot test for internal components. The semi-conductor used in
hybrid servo drive easily damage by high-voltage.
Even if the three-phase hybrid servo drive is stop, a charge may remain in the
main circuit terminals of the hybrid servo drive with hazardous voltages.
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