For Safe Use; Before Starting - Mitsubishi Electric PLK-J-CU-20 Technical Manual

■ For safe use

Always observe the following matters to safely use the Mitsubishi industrial electronic sewing machine PLK-J Series.

Before starting

Before using this control unit, read all of the technical manuals carefully, and correctly use the unit following
the manual. Also read the "Mitsubishi Industrial Sewing Machine Technical Manual <Sewing Machine Head>"
for details on the general configuration and sewing machine head.
Application and purpose
This control unit is designed to drive and control the Mitsubishi industrial electronic sewing machine PLK-J
Series. Do not use this control unit for other applications or purposes. Do not use this control unit until it has
been confirmed that safety measures have been accurately taken for the installed electronic sewing machine
head section.
Working environment
Please use this control unit in the industrial setting only. And do not use this control unit in the following type of
environment.
(1) Power voltage
* Where the voltage fluctuation exceeds ±10% of the rated voltage.
* Where the specified power capacity (Refer to page [4] - 2) cannot be ensured.
(2) Magnetic noise
* Where strong fields or magnetic fields are generated, such as near a high-output high frequency
oscillating machine or high frequency welder.
(3) Temperature and humidity
* Where the ambient temperature is 35°C or more and 5°C or less.
* Where the unit will be subject to direct sunlight, or outdoors.
* Near sources of heat, such as heating appliances.
* Where the relative humidity is 45% or less, or 85% or more, and where dew may condense.
(4) Atmosphere
* In an atmosphere containing dust or corrosive gases, etc.
* In a flammable gas or explosive environment.
(5) Vibration
* If excessive vibration could occur when installed on the sewing machine, separately install the control
box.
■ Installation
Control box
Correctly install the control box according to this manual.
Accessories
Always disconnect the control unit from the main power supply before installing the accessories listed in this
manual. "Turn the power switch OFF, and disconnect the plug from the socket (power supply line)."
Cable
(1) Lay the connection cables so that excessive force will not be applied during operation. Do not excessively
bend the cables.
(2) Cables laid near operating machine sections must be separated by at least 25mm.
(3) Before connecting the power cable to the control box, confirm that the power voltage matches the
specifications given on the control box's rating nameplate and factory shipment voltage nameplate. Connect
the cable to the indicated positions, and then supply the power. When using a power unit, connect the cable
to the power unit and supply the power. In addition, when using a power unit, confirm that the power
voltage matches the specifications given on the power unit's rating nameplate. Turn the power switch OFF
before making any connections.
Grounding
Always ground the power cord's grounding wire.
Enclosed units and accessories
Connect the electrical enclosed units and accessories only to the positions indicated in the manual.
[1] For safe use
[1] ‐ 1