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1. Safety Precautions
This product shall be used in conditions;
i) where any problem, fault or failure occurring in this product, if any, shall not lead to any major or serious accident;
and
ii) Confirmed that the laws and regulations related to the equipment to be controlled are satisfied
and
iii) where the backup and fail-safe function are systematically or automatically provided outside of this product for the case of
any problem, fault or failure occurring in this product.
This product has been designed and manufactured for the purpose of being used in general industries.
MITSUBISHI SHALL HAVE NO RESPONSIBILITY OR LIABILITY (INCLUDING, BUT NOT LIMITED TO ANY AND ALL
RESPONSIBILITY OR LIABILITY BASED ON CONTRACT, WARRANTY, TORT, PRODUCT LIABILITY) FOR ANY INJURY
OR DEATH TO PERSONS OR LOSS OR DAMAGE TO PROPERTY CAUSED BY the PRODUCT THAT ARE OPERATED OR
USED IN APPLICATION NOT INTENDED OR EXCLUDED BY INSTRUCTIONS, PRECAUTIONS, OR WARNING
CONTAINED IN MITSUBISHI'S USER, INSTRUCTION AND/OR SAFETY MANUALS, TECHNICAL BULLETINS AND
GUIDELINES FOR the PRODUCT.
1.1 Precautions for Operating Environment and Conditions
This unit is intended for use in pollution degree 2
*Note1
environment. When using in higher pollution degree, protect the unit
from pollution using another device to be incorporated.
The overvoltage category of the auxiliary power circuit (MA, MB) of this unit is CAT III
*Note1
.
Do not use this unit in the following places. Otherwise, there is danger of a malfunction or reduction of the product life.
・
The Ambient temperature exceeds the range -5°C to +55°C.
・
The daily average temperature e35°C.
・
The Relative humidity exceeds the range 30% to 85% RH,
or condensing
・
Exposed to excessive vibration or impact
・
Exposed to much dust, corrosive gas, salty environment, or
oil smoke
・
Exposed to strong magnetic fields or large
exogenous noise
・
Exposed to rain or water drops.
・
Exposed to direct sunlight
・
Metal fragments or conductive substances are scattered.
・
The altitude exceeds 2000 m.
This unit is an open type device, which is designed to be housed within another system for prevention of electric shock. Be
sure to install the unit into the system such as a control panel.
For the precautions to conform the system constructed with this unit to the EMC Directive, refer to
for Compliance with EMC Directive
*Note1: For the definitions of the pollution degree and overvoltage category, refer to
EN61010-1/2010
.
1.2 Precautions for Preparation before Use
Observe the use environment and conditions for installation place.
This unit has a built-in lithium battery, which is disconnected when shipped from the factory. Before use, connect the battery.
Control Unit Engineering Tool (Model: EMU4-KNET) is required to set up this unit.
For the compressor control set at the control method setting, using the three contacts controls the three operation modes:
loaded operating mode, unloaded operating mode, and stop mode. Therefore, compressors that this unit can control are
limited to the ones with an operating system structure that each contact output status corresponds to each operation mode
as the following table.
Operation mode of
compressor
Contact
Loaded
operating mode
Unloaded
operating mode
Stop mode
Loaded/Unloaded
ON
OFF
OFF
Operating
ON
ON
OFF
Stop
ON
ON
OFF
1.3 Precautions for Installation and Wiring
Warning
Shut off all the phases of external power supply used by this product before installation or
wiring work. Otherwise, there is danger of an electric shock or damage to the product.
Be sure to work for installation and wiring in a non-energized state. Otherwise, there is danger
of an electric shock, a product failure, or a fire.
