Modular Temperature Controller E5ZN I-141
Temperature
Controller
Precautions
■General Precautions
The user must operate the product according to the performance
specifications described in the operation manual.
Before using the product under conditions that are not described in
the manual or applying the product to nuclear control systems, rail-
road systems, aviation systems, vehicles, combustion systems, med-
ical equipment, amusement machines, safety equipment, and other
systems, machines, and equipment that may have a serious influ-
ence on lives and property if used improperly, consult your OMRON
representative.
Make sure that the ratings and performance characteristics of the
product are sufficient for the systems, machines, and equipment, and
be sure to provide the systems, machines, and equipment with dou-
ble safety mechanisms.
■Safety Precautions
Definition of Precautionary Information
!WARNING
The above symbol indicates a situation that may result in injury or
property damage.
Warnings
!WARNING
Do not allow metal fragments or lead wire scraps to fall inside this
product.
These may cause electric shock, fire, or malfunction.
!WARNING
Do not use the product in locations subject to flammable or explo-
sive gases. Doing so may result in explosion.
!WARNING
Do not touch any of the terminals while the power is ON. Doing so
may result in electric shock.
!WARNING
Provide at least one power-interruption switch to ensure that the
power is OFF before wiring. Not doing so may result in electric
shock.
!WARNING
To maintain safety in the event of a product malfunction, always
take appropriate safety measures, such as installing an alarm on
a separate line to prevent excessive temperature rises. If a mal-
function prevents proper control, a major accident may result.
!WARNING
Do not attempt to disassemble, repair, or modify the product. Any
attempt to do so may result in malfunction, fire, or electric shock.
!WARNING
Tighten screws to the specified torques given below.
Loose screws may result in burning or malfunction.
E5ZN-SCT@S-500: 0.40 to 0.56 N·m
E5ZN-SDL: 0.74 to 0.90 N·m
!WARNING
Set all settings according to the control target of the product.
If the settings are not appropriate for the control target, the product
may operate in an unexpected manner, resulting in damage to the
product or accidents.
■Application and Operating
Environment Precautions
Observe the following points to ensure safe operation.
1. Use and store the product within the specified temperature and
humidity ranges. Cool the product (e.g., using fans) where neces-
sary.
2. Do not touch the electronic components or pattern of the PCB.
Hold the product by the case.
3. To ensure proper heat dissipation, leave a space around the prod-
uct. Do not block the product’s ventilating holes.
4. Use at the rated power supply voltage with the rated load.
5. Be sure to connect terminals with the correct polarity.
6. Perform wiring using crimp terminals of the specified size. (E5ZN-
SCT@S-500: M3.0, width 5.8 mm max.; E5ZN-SDL: M3.5, width
7.2 max.)
7. Be sure to use wires satisfying the following specifications for
connection using bare wires.
Power supply terminals: AWG 22 to 14
Other terminals: AWG 28 to 16
(Length of exposed part: 6 to 8 mm)
8. Do not connect anything to unused terminals.
9. Ensure that the rated voltage is reached within 2 seconds of turn-
ing power ON.
10.Allow 30 seconds’ warm-up time.
11.Install the product as far away as possible from devices that gen-
erate strong, high-frequency noise and devices that generate
surges.
12.Keep wiring separate from high-voltage power lines or power lines
carrying large currents. Do not wire in parallel with or together
with power lines.
13.Install switches or circuit-breakers so that the user can turn the
power OFF immediately, and indicate these accordingly.
14.Do not use the product in the following locations:
•Locations subject to dust or corrosive gases (in particular, sul-
fide gas and ammonia gas)
•Locations subject to freezing or condensation
•Locations exposed to direct sunlight
•Locations subject to vibrations or shocks
•Locations subject to exposure to water or oil
•Locations subject to heat radiated directly from heating equip-
ment
•Locations subject to intense temperature changes
15.When the Terminal Unit is separated from the Temperature Con-
troller, under no circumstances touch the electrical components
or apply shock to the Temperature Controller.
16.Do not use solvents to clean the product. Use commercial alco-
hol.
17.After wiring is completed remove the dust-protection label to allow
proper heat dissipation.
18.When mounting the Temperature Controller to the Terminal Unit,
make sure that the hook on the side of the Temperature Controller
facing the Terminal Unit is inserted properly.
19.Install the DIN track vertically.
■Correct Use
Service Life
Use within the following temperature and humidity ranges:
•Temperature: –10 to 55×C (with no icing or condensation)
•Humidity: 25% to 85%