H8PS
Safety Precautions for Cam Positioners
Refer to Safety Precautions for All Counters.
■ Precautions for Safe Use
!CAUTION
Observe the following items to ensure the safe use of this product.
Tighten terminal screws to a torque of 0.80 N·m so that
they do not become loose.
Minor fires or malfunction may occasionally occur.
Environmental Precautions
• Store the H8PS within specified ratings. If the H8PS has been
stored at temperatures −10°C or lower, let it stand for 3 hours or
longer at room temperature before turning ON the power supply.
• Use the H8PS within the specified ratings for operating temperature
and humidity.
• Do not operate the H8PS in locations subject to sudden or extreme
changes in temperature, or locations where high humidity may
result in condensation.
For 16- and 32-output Models, leave the protective label
attached to the H8PS when wiring. Removing the label
before wiring may occasionally result in fire if foreign
matter enters the Unit.
Remove the label after the completion of wiring to ensure
proper heat dissipation. Leaving the label attached may
occasionally result in fire.
Do not disassemble, modify, or repair the H8PS or touch
any of the internal parts. Otherwise, minor electric shock,
fire, or malfunction may occasionally occur.
• Do not use the H8PS in locations subject to vibrations or shock.
Extended use in such locations may result in damage due to stress.
• Do not use the H8PS in locations subject to excessive dust,
corrosive gas, or direct sunlight.
• Install the H8PS well away from any sources of static electricity,
such as pipes transporting molding materials, powders, or liquids.
• The H8PS is not waterproof or oil resistant.
Do not use it in locations subject to water or oil.
• The life expectancy of internal components may be reduced if the
H8PS is mounted side-by-side.
Do no allow metal fragments, lead wire scraps, or chips
from processing during installation to fall inside the H8PS.
Otherwise, minor electric shock, fire, or malfunction may
occasionally occur.
Do not touch the terminals when power is being supplied.
For Surface-mounting H8PS, always connect the terminal
cover for after completing wiring. Otherwise, minor injury
due to electric shock may occasionally occur.
• Do not use organic solvents (such as paint thinner or benzine),
strong alkaline, or strong acids because they will damage the
external finish.
Usage Precautions
• Install a switch or circuit breaker that allows the operator to
immediately turn OFF the power, and label it to clearly indicate its
function.
• Pay careful attention to polarity to avoid wrong connections when
wiring terminals.
• Do not connect more than two crimp terminals to the same
terminal.
• Use the specified wires for wiring.
Applicable Wires
AWG24 to AWG18 (cross-sectional area of 0.208 to 0.832 mm2)
Solid or twisted wires of copper
• Do not connect loads that exceed the rated output current. The
output elements may be destroyed, possibly resulting in short-
circuit or open-circuit faults.
• Always connect a diode to protect against counterelectromotive
force when using an inductive load. Counterelectromotive force
may destroy output elements, possibly resulting in short-circuit or
open-circuit faults.
• Use the specified cables to connect outputs.
• Do not install input lines in the same duct or conduit as power
supply or other high-voltage lines. Doing so may result in
malfunction due to noise. Separate the input lines from high-
voltage lines.
• Internal elements may be destroyed if a voltage outside the rated
voltage is applied.
• Maintain voltage fluctuations in the power supply within the
specified range.
• Use a switch, relay, or other contact so that the rated power supply
voltage will be reached within 0.1 s. If the power supply voltage is
not reached quickly enough, the H8PS may malfunction or outputs
may be unstable.
• Do not turn OFF the power supply when changing or deleting
settings. The contents of the EEPROM may be corrupted.
18
OMRON [ OMRON ELECTRONICS LLC ]
