Safety Precautions
iii
1. Safety Precautions for Installation
WARNING
Grounding required:
To avoid the risk of electric shock or fire, be sure to ground the equipment.
CAUTION
Choose proper environment for installation:
Avoid installing and storing the equipment in the following environments:
z
Location with considerable dust
z
Location in which flammable or corrosive gases (such as SO
2
and H
2
S) are present
z
Location where vibration or shock exceeds allowable limits
z
Location where condensation may occur due to rapid change in temperature
z
Location where the temperature is not within the specified range for installation
z
Location where the humidity exceeds the specified limits for installation
z
Location in the direct sunlight
z
Location near a device that generates strong radio waves or magnetic fields
Considerations for maintenance and inspection:
Install the equipment in a place that facilitates maintenance and inspection. If not, in case of
malfunctioning, it may hinder the recovery of the system and result in serious accident.
Ensure proper ventilation:
Do not block vents, intake or exhaust openings of the equipment. Blocking them may cause
mulfunctioning or overheating which may result in fire.
Prohibit excessive voltage or current:
Avoid applying excessive voltage and current across the input/output terminals by keeping them
within the specified ratings. Otherwise it may result in equipment damage.
Avoid noise interference:
Place I/O and data transmission signal cables away from the power cables and the devices that
generate magnetic or electromagnetic fields. Interference noise may cause the equipment to
malfunction.
