Wiring; Wiring Precautions - Mitsubishi Electric QD70D4 User Manual

5 SETUP AND PROCEDURES BEFORE OPERATION

5.4 Wiring

5.4.1 Wiring precautions

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This section explains how to wire the drive unit and mechanical system inputs to the
QD70D.
The following are the precautions for wiring the QD70D. Read these precautions
together with "Section 5.1 Handling precautions" to ensure work safety.
(1) Always confirm the terminal layout before connecting the wires to the QD70D.
(2) Correctly solder the external device connection connector. An incomplete
soldering could lead to malfunctioning.
(3) Make sure that foreign matter such as cutting chips and wire scraps does not
enter the QD70D. Failure to observe this could lead to fires, faults or
malfunctioning.
(4) A protective label is attached on the top of the QD70D to avoid foreign matter
such as wire scraps from entering inside during wiring process. Do not remove the
label until the wiring is completed. Before starting the system, however, be sure to
remove the label to ensure heat radiation.
(5) Securely mount the external device connection connector to the connector on the
QD70D with two screws.
(6) Do not disconnect the external wiring cable connected to the QD70D or drive unit
by pulling the cable section. When the cable has a connector, be sure to hold the
connector connected to the QD70D or drive unit. Pulling the cable while it is
connected to the QD70D or drive unit may lead to malfunctioning or damage of
the QD70D, drive unit or cable.
(7) Do not bundle or adjacently lay the connection cable connected to the QD70D
external input/output signals or drive unit with the main circuit line, power line, or
the load line other than that for the programmable controller. Separate these by
100mm as a guide. Failure to observe this could lead to malfunctioning caused by
noise, surge, or induction.
(8) If cables to connect to QD70D absolutely must be positioned near (within 100mm)
the power line, use a general shielded cable. The shield must be grounded on the
QD70D side. (Wiring examples are given on the following pages.)
MELSEC-Q
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