Summa Series Servodrive Product Manual
Safety Precautions
Document Version: V1.01
(Dec, 2019)
© 2019 ESTUN Automation Co., Ltd. All right reserved.
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Wiring Precautions
CAUTION
Never pass the electromagnetic contactor in the wiring between the
Drive and the Motor.
Firmly connect the power terminal to the Motor terminal.
Provide at least 10 millimeters space between the Drives and the control
cabinet or with other devices. In addition, the longitudinal space
between them are above 30 millimeters.
Use shielded twisted-pair cables or screened unshielded multi-twisted-
pair cables for I/O Signal Cables and Encoder Cables.
Tthe wiring length of the encoder is up to 20 meters.
Never frequently turn the power supply ON and OFF. After you have
started actual operation, allow at least one hour between turning the
power supply ON and OFF (as a guideline).
Operation Precautions
CAUTION
In order to prevent accidents, please test the Motor with no load (not
connected to the Drive shaft).
When starting to operate on the supporting machine, set the user
parameters that match the machine in advance.
Note that the signals for the Forward Drive Prohibit (P-OT) and the
Reverse Drive Prohibit (N-OT) are disabled during JOG operation and
homing operation.
When overtravel occurs, the power supply to the Motor is turned OFF
and the brake is released. If you use the Motor to drive a vertical load,
set the Motor to enter a zero-clamped state after the Motor stops. Also,
install safety devices (such as an external brake or counterweight) to
prevent the moving parts of the machine from falling.
Make sure set a correct moment of inertia ratio to avoid vibration if not
use the auto-tuning.
When an alarm occurs, reset it after troubleshooting the cause and
ensuring safety.
Never use the brake of the Motor for normal braking.
Maintenance Precautions
WARNING
Wiring and inspections must be performed only by qualified engineers.
Disconnect all connections to the Drive when testing the insulation
resistance of the Drive.
Never use gasoline, thinner, alcohol, acid or alkaline detergent to avoid
discoloration or damage to the casing.
When replacing the Drive, transfer the user parameters from the
replaced Drive to new Drive.
Never change the wiring while the power is on.
Never disassemble the Motor without permission.
