Summa Series Servodrive Product Manual
Wiring and Connecting
Document Version: V1.01
(Dec, 2019)
© 2019 ESTUN Automation Co., Ltd. All right reserved.
3-2
NOTE
Whenever possible, use the Cables specified by ESTUN.
Securely tighten cable connector screws and lock mechanisms, in case
cable connectors falling off during operation.
Never bundle power lines (e.g. the Main Circuit Cable) and low-current
lines (e.g. the I/O Signal Cables or Encoder Cables) together or run them
through the same duct. If you do not place power lines and low-current
lines in separate ducts, separate them by at least 30 cm.
IMPORTANT
Use a molded-case circuit breaker or fuse to protect the main circuit.
The Drive connects directly to a commercial power supply; it is not
isolated through a transformer or other device. Always use a molded-
case circuit breaker or fuse to protect the Servo System from accidents
involving different power system voltages or other accidents.
Install an earth leakage breaker.
The Drive does not have a built-in ground fault protective circuit. To
configure a safer system, install a ground fault detector against
overloads and short-circuiting, or install a ground fault detector
combined with a molded-case circuit breaker.
Never turn the power supply ON and OFF more than necessary.
−
Use the Drive for applications that require the power supply to turn
ON and OFF frequently. Such applications will cause elements in the
Drive to deteriorate.
−
After you have started actual operation, allow at least one hour
between turning the power supply ON and OFF (as a guideline).
3.1.2
Countermeasures against Noise
IMPORTANT
The Drive is designed as an industrial device. It therefore provides no
measures to prevent radio interference. The Drive uses high-speed
switching elements in the main circuit. Therefore, peripheral devices may
be affected by switching noise.
If the equipment is to be used near private houses or if radio interference is
a problem, take countermeasures against noise.
Since the Drive uses microprocessors, it may be affected by switching noise from peripheral devices.
To prevent the noise from the Drive or the peripheral devices from causing malfunctions of any devices,
take the following countermeasures against noise as required.
Install the input reference device and Noise Filter as close to the Drive as possible.
Always install a Surge Absorber for relays, solenoids, and Magnetic Contactor coils.
Never place the following cables in the same duct or bundle them together. Also, separate the cables
from each other by at least 30 cm.
−
Main Circuit Cables and I/O Signal Cables
−
Main Circuit Cables and Encoder Cables
Never share the power supply with an electric welder or electrical discharge machine. If the Drive is
placed near a high-frequency generator, install Noise Filters on the input side on the Main Circuit
Power Supply Cable and Control Power Supply Cable even if the same power supply is not shared
with the high-frequency generator. Refer to the section
Noise Filters.
Implement suitable grounding measures. Refer to the section
grounding measures.
