5
Safety Precaution
(Always read these instructions before using this equipment)
For personnel and product safety please read the contents of these operating instructions carefully before using.
Make sure that the end users read this manual and then keep the manual in a safe place for future reference.
Make sure to deliver this manual to the end-user.
If you are considering using this instrument for special purpose such as nuclear power plants, aerospace,
medical care or passenger vehicles please refer to our sales representative.
HAZARD SYMBOLS
Read these instructions carefully and look at the equipment to become familiar with the device before trying
to install, operate, service or maintain it. Terminal of control power (MA, MB) and voltage inputs (P1, P2, P3,
PN) have hazards of electric shock, explosion, or arc flash. Turn off power supplying this device and the
equipment in which it is installed before working on it.
CAUTION
The above Indicates that incorrect handling may cause hazardous conditions. Always follow the instructions
because they are important to personal safety. Otherwise, it could result in electric shock, fire, erroneous
operation, and damage of the instrument. If the equipment is used in a manner not specified by the
manufacturer, the protection provided by the equipment may be impaired.
■
Normal service conditions
Use the instrument in an environment that meets the Normal service conditions as following points:
● Ambient temperature: -5 to +55°C
● Average day temperature: 35°C or less
● Humidity: 0 to 85%RH, non condensing.
● Altitude: 2000m or less
● Pollution Degree: 2 or less (Note 1)
● Atmosphere without corrosive gas, dust, salt, oil mist.
● Indoor use
● Transient over voltage: 4000V or less (Note 1)
● A place without excessive shocks or vibration.
● Do not expose to rain and water drips.
● Do not expose to direct sunlight.
● An area in where no pieces of metal and an inductive substance disperse.
● Do not expose to strong electromagnetic field and ambient noises.
Note 1
．
For the definition of the
Pollution Degree
and the
Transient over voltage
category, refer to
EN61010-1:2010.
■
Installation instructions
Make sure to read this manual carefully before Installation and Wiring.
CAUTION
This instrument should be installed and used by a qualified electrician.
The instrument must not be powered and used until its definitive assembly on the
cabinet’s door.
The instrument is to be mounted on a panel. All connections must be kept inside the
cabinet.
Verify the following points:
■Auxiliary power supply and measuring ratings.
Auxiliary power
supply
AC100-240V(±15%)
50-60Hz
8VA
DC100-240V(-30%
＋
15%)
5W
MA,MB terminals
Ratings
Voltage
3-PHASE 4-WIRE
：
max AC277/480V
3-PHASE 3-WIRE
：
(DELTA)max AC220V,
(STAR)max AC440V
1-PHASE 3-WIRE
：
max AC220/440V
1-PHASE 2-WIRE
：
(DELTA)max AC220V,
(STAR)max AC440V
Category
Ⅲ
P1,P2,P3,PN terminals
Current
5A(via current transformer),maxAC30V
Category
Ⅲ
+C1,C1,+C2,C2,+C3,C3
terminals
Frequency
50-60Hz
Provide the basic insulation externally at the current input terminals.
Voltage-measuring and current-measuring circuit terminals should be permanently
connected.
