Omron E5AZ User Manual page 10

Be sure to observe the following precautions to ensure the safe use of the product.
Precautions for Safe Use
1. Do not use the product in any of the following environments.
• Places subject to splashing liquid or oil atmosphere
• Places subject to direct sunlight
• Places subject to dust or corrosive gas (in particular, sulfide gas and
ammonia gas)
• Places subject to intense temperature change
• Places subject to icing and condensation
• Places subject to vibration and large shocks
• Places directly subject to heat radiated from heating equipment.
2. To reduce the risk of fire or electric shock, install the Temperature Control-
ler in a controlled environment relatively free of contaminants.
3. Use and store the product within the rated temperature and humidity rang-
es. Group-mounting two or more Temperature Controllers, or mounting
Temperature Controllers above each other may cause heat to build up in-
side the Temperature Controllers, which will shorten their service life. In
such a case, use forced cooling by fans or other means of air ventilation to
cool down the Temperature Controllers.
4. To allow heat to escape, do not block the area around the product. Do not
block the ventilation holes on the product.
5. Use the specified size (M3.5, width of 7.2 mm or less) crimped terminals
for wiring.
6. To connect bare wires to the terminal block, use copper braided or solid
wires with a gage of AWG24 to AWG14 (equal to a cross-sectional area of
0.205 to 2.081 mm
of the same size and type, or two crimp terminals can be inserted into a
single terminal.
7. Be sure to wire properly with correct polarity of terminals. Do not wire any
of the I/O terminals incorrectly.
8. Do not wire the terminals that are not used.
9. The voltage output (control output) is not electrically isolated from the in-
ternal circuits. When using a grounded temperature sensor, do not connect
any of the control output terminals to ground.Otherwise unwanted current
paths will cause measurement errors.
10. To avoid inductive noise, keep the wiring for the Temperature Controller's
terminal block away from power cables carrying high voltages or large cur-
rents. Also, do not wire power lines together with or parallel to Temperature
Controller wiring. Using shielded cables and using separate conduits or
ducts is recommended. Attach a surge suppressor or noise filter to periph-
eral devices that generate noise (in particular, motors, transformers, sole-
noids, magnetic coils or other equipment that have an inductance
component). When a noise filter is used at the power supply, first check the
voltage or current, and attach the noise filter as close as possible to the
temperature controller. Allow as much space as possible between the Tem-
perature Controller and devices that generate powerful high frequencies
(high-frequency welders, high-frequency sewing machines, etc.) or surge.
11. Use the product within the rated load and power supply.
2
). (The stripping length is 5 to 6 mm.) Up to two wires
xi