Precautions When Wiring; Removing The Temperature Controller From The Case - Omron E5CN Datasheet

Mounting
Mounting to a Panel
For waterproof mounting, waterproof packing must be installed on the
Controller. Waterproofing is not possible when group mounting
several Controllers. Waterproof packing is not necessary when there
is no need for the waterproofing function.
E53-COV17
Terminal Cover
(Accessory)
Adapter
(Accessory)
Waterproof packing
E5CN
(Accessory)
Panel
1. The Panel Mounting Adapter is also included with the E5CN-U.
There is no waterproof packing included with the E5CN-U.
2. Insert the E5CN/E5CN-U into the mounting hole in the panel.
3. Push the adapter from the terminals up to the panel, and
temporarily fasten the E5CN/E5CN-U.
4. Tighten the two fastening screws on the adapter. Alternately
tighten the two screws little by little to maintain a balance. Tighten
the screws to a torque of 0.29 to 0.39 N·m.
Mounting the Terminal Cover
Make sure that the "UP" mark is facing up, and then attach the E53-
COV17 Terminal Cover to the holes on the top and bottom of the
Temperature Controller.
Removing the Temperature Controller from the
Case
The Temperature Controller can be removed from the case to perform
maintenance without removing the terminal leads. This is possible for
only the E5CN, E5AN, and E5EN, and not for the E5CN-U. Check the
specifications of the case and Temperature Controller before

removing the Temperature Controller from the case.

Tool insertion hole
1. Insert a flat-blade screwdriver into the two tool insertion holes (one
on the top and one on the bottom) to release the hooks.
2. Insert the flat-blade screwdriver in the gap between the front panel
and rear case, and pull out the front panel slightly. Hold the top and
bottom of the front panel and carefully pull it out toward you,
without applying unnecessary force.
3. When inserting the body of the Temperature Controller into the
case, make sure the PCBs are parallel to each other, make sure
that the sealing rubber is in place, and press the E5CN toward the
rear case into position. While pushing the E5CN into place, push
down on the hooks on the top and bottom surfaces of the rear case
so that the hooks are securely locked in place. Be sure that
electronic components do not come into contact with the case.
20
Basic-type Digital Temperature Controller
Order the P2CF-11 or
P3GA-11 Socket separately.
E5CN-U
For Front-mounting Socket
(Panel mounting is also possible.
Flat-blade screwdriver
(Unit: mm)
(1)
(2)
(3)
0.4 2.0
(1)

Precautions when Wiring

Separate input leads and power lines in order to prevent external
noise.
Use wires with a gage of AWG24 (cross-sectional area:
2
0.205 mm ) to AWG14 (cross-sectional area: 2.081 mm
pair cable (stripping length: 5 to 6 mm).
Use crimp terminals when wiring the terminals.
Tighten the terminal screws to a torque of 0.74 to 0.90 N·m,
however the terminal screws on the E5CN-U must be tightened to
a torque of 0.5 N·m.
Use the following types of crimp terminals for M3.5 screws.
Do not remove the terminal block. Doing so will result in
malfunction or failure.
E5CN/E5CN-U
2
) twisted-
7.2 mm max.
7.2 mm max.