<Safety Precautions and Protection of Environment>
10
IM 12Y18A00-01EN
1st Edition : Jul. 16, 2019-00
2. Wiring and Installation
For details, refer to the User’s Manual.
2.1
Installation site
WE410, WE420, WE430 and WE440 can be installed inside only.
Select an installation site where the ambient temperature and humidity are within the limits of the
instrument specifications as below.
Ambient Operating Temperature: 5 to 45 °C (41 to 113°F)
Storage Temperature:
-20 to 60 °C (-4 to 140 °F)
Humidity:
10 to 90% at 40ºC (104 °F) (Non-condensing)
Select an installation site that meets the following conditions.
• Mechanical vibrations and shocks are negligible
• No relay switch and power switch are installed close to the converter
• There is space for cable connection beneath the cable glands
• Not exposed to direct sunlight or severe weather conditions
• Maintenance is possible
• No corrosive atmosphere
For dimensional information please refer to the User’s Manual.
2.2 Wiring
2.2.1 Preparation
Power supply and relay contact should be connected first. Next, connect the others. For details,
refer to the User’s Manual. Read it carefully before wiring.This manual describes how to use
WE410, WE420, WE430 and WE440 with Yokogawa’s or other companies’ sensors. Please read
carefully this manual and the instruction manuals relevant to those sensors you use before using
this instrument.
WARNING
• Cables that withstand temperatures of at least 75 °C should be used for wiring.
• Use cables that comply with UL2556VW-1 or equivalent.
• Do not operate with the electronics enclosure door open.
2.2.2
Cables, Terminals, glands and conduit adapter
WE410, WE420, WE430 and WE440 are supplied with terminals suitable for the connection of
finished wires in the size range of 0.13 to 2.5 sq.mm. (26 to 14 AWG).
For details, refer to the User’s Manual.
2.2.3
Wiring the power supply
CAUTION
Make sure the power supply is switched off. Power rating must comply with WE410, WE420,
WE430 and WE440 specifications. Power voltage must match with the one indicated on the
name plate.