Installation; Use - DEMA D5M Series Manual

NO.1 Safety Cautions

1.2 Installation

● Ambient temperature ranges from -5℃ to 40℃, high temperature and moist shall be
prevented with the humidity less than 90% (non-condensation).
● Electromagnetic interference shall be prevented and interference source shall be kept
away.
● Water drop, steam, dust, cotton dust, and metal powder, as well as oil, salt and corrosive
gas shall be prevented entering.
● It is prohibited to install the inverter in environment with inflammable and explosive gas, as
well as liquid and solid.
● It is unallowable to install air switch, contactor, capacitor or piezoresistor concerned and
other devices at output side, so as to avoid inverter fault and damage to tripping protection or
components.
● The inverter shall adopt independent power supply rather than sharing power supply with
electric welder, so as to prevent the damage to inverter protection.
● To facilitate cooling and maintenance, the inverter shall be installed vertically with enough
space around to ensure ventilation.
● Installation wall shall be made of non-combustible materials like iron plate which shall be
prevented from vibration to cause damage to the inverter.
● If several inverters are installed up and down in one cabinet, certain spacing shall be kept
and baffle plate shall be set there between.

1.3 Use

1. Before energizing
● Voltage of the power supply selected must have the same specification with the input
voltage of inverter.
● PE refers to earthing terminal, please make sure the motor and inverter are grounded
properly to ensure safety.
●Do not set contactor between power supply and inverter to control startup or stop of inverter,
otherwise life time of the inverted will be impacted.
● Wiring of main circuit terminal shall be correct, L1.L2.L3 refer to power input terminals
which are prohibited to be mixed with U.V.W., otherwise, damage to the inverter may be
caused during energizing.
2. Energizing
● It is prohibited to plug and unplug the connector on inverter to prevent surge entering the
control panel and causing damage to the inverter.
● It is necessary to put the cover in place to prevent electric shock causing personal injury.
3. Running
2