Cautions Before Using - Panasonic ELC500 User Manual

Cautions before using

■Installation environment
・Inside the control panel
・Surrounding air temperature: : 0 to +55℃
・Surrounding air humidity: 10 to 95%RH (at 25℃) no-condensing
・Attitude under 2000m
・Pollution degree 2
・Do not use in the following environments.
-Where the unit will be exposed to direct sunlight
-Where condensation might occur by sudden temperature changes
-Where inflammable or corrosive gas might be produced
-Where the unit will be exposed to excessive airborne dust or metal particles
-Where organic solvents such as benzene, paint thinner, alcohol, or strong alkaline solutions such
as ammonia or caustic soda might adhere to the unit
- Where the place near high-voltage cable, high-voltage device, power line, power device
- Where the place near a machinery with transmission function such as amateur radio
- Where the place near a machinery which occurs the big switching serge (latest 100mm)
■Installation
・Installation and wiring must be performed by expert personnel for electrical work or electric piping.
■Static electricity
・Do not touch pins of connector directly in order to avoid electrostatic discharge failure.
・Discharge static electricity touching the grounded metal etc. when you touch the unit.
■Power supplies
・Use twisted (twisted) wires for power supply.
・Although it has enough noise immunity against noise to the power supply line, it is recommended to
take measures such as using an isolation transformer in order to increase the noise.
・Use the separate wiring for power supply line and input / output equipment line.
・If using a power supply without a protective circuit, power should be through a protective element such
as fuse. If an incorrect voltage is directly applied, the internal circuit may be damaged or destroyed.
■Grounding
・Ground to ensure sufficient noise immunity. (In case of using 24V DC, ground the function earth line of
the attached power supply cable.)
・Make the ground point as close as possible to ELC 500 and shorten the distance of the ground wire.
・Sharing the ground with other equipment may have the opposite effect, so be sure to use a dedicated
ground.
・The earth terminal of the AC power supply unit should be grounded to Class D (Type 3) ground
resistance of 100 Ω or less.
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ELC500 Control unit