Summa Series Servodrive Product Manual
Wiring and Connecting
Document Version: V1.01
(Dec, 2019)
© 2019 ESTUN Automation Co., Ltd. All right reserved.
3-1
Chapter 3
Wiring and Connecting
3.1
Precautions for Wiring
3.1.1
General Precautions
DANGER
Never change any wiring while power is being supplied, in case a risk of
electric shock or injury.
WARNING
Wiring and inspections must be performed only by qualified engineers.
Check all wiring and power supplies carefully.
Incorrect wiring or incorrect voltage application to the output circuits
may cause short-circuit failures. If a short-circuit failure occurs as a
result of any of these causes, the holding brake will not work. This could
damage the machine or cause an accident that may result in death or
injury.
Connect the AC and DC power supplies to the specified Drive terminals.
CAUTION
Wait for at least five minutes after turning OFF the power supply and
then make sure that the CHARGE indicator is not lit before starting
wiring or inspection work. Never touch the power supply terminals while
the CHARGE lamp is lit after turning OFF the power supply because high
voltage may still remain in the Drive.
Observe the precautions and instructions for wiring and trial operation
precisely as described in this document.
Check the wiring to be sure it has been performed correctly.
Connectors and pin layouts are sometimes different for different models.
Always confirm the pin layouts in technical documents for your model
before operation.
Use shielded twisted-pair cables or screened unshielded multi-twisted-
pair cables for I/O Signal Cables and Encoder Cables.
The main circuit cable of the Drive must be guaranteed to work normally
at 75 °C.
Observe the following precautions when wiring the Drive’s main circuit
terminals.
−
Turn ON the power supply to the Drive only after all wiring, including
the main circuit terminals, has been completed.
−
If a connector is used for the main circuit terminals, remove the main
circuit connector from the Drive before you wire it.
−
Insert only one wire per insertion hole in the main circuit terminals.
−
When you insert a wire, make sure that the conductor wire (e.g.
whiskers) does not come into contact with adjacent wires.
Install molded-case circuit breakers and other safety measures to
provide protection against short circuits in external wiring.
