Mounting
Environmental Requirements
JO-PC1 Base Controller Mounting and Wiring Guide
Part Number JO-PC1 rev 1
Updated: January 16, 2012
5
Mounting
Mount the JO-PC1 controller in a location that allows clearance for wiring, servicing, and module removal.
Environmental Requirements
Note the following requirements for the controller’s mounting location:
•
This product is intended for indoor use only. Do not expose the unit to ambient conditions outside of the
range of 0ºC (32º F) to 50ºC (122º F) and relative humidity outside the range 5% to 95% non-condensing
(pollution degree 1).
•
If mounting inside an enclosure, that enclosure should be designed to keep the unit within its required
operating range considering a 20-watt dissipation by the controller, plus dissipation from any other
devices installed in the same enclosure. This is especially important if the controller is mounted inside an
enclosure with other heat producing equipment.
•
Do not mount the unit:
–
in an area where excessive moisture, corrosive fumes, or explosive vapors are present.
–
where vibration or shock is likely to occur.
–
in a location subject to electrical noise. This includes the proximity of large electrical contractors,
electrical machinery, welding equipment, and spark igniters, and variable frequency drives.
Physical Mounting
The following information applies about physically mounting the unit.
•
You can mount the JO-PC1 in any orientation. It it not necessary to remove the cover before mounting.
•
Mounting on a 35mm wide DIN rail is recommended. The controller’s base has a molded DIN rail slot
and locking clip, as do both types of I/O expansion modules. Mounting on a DIN rail ensures accurate
alignment of connectors between all modules.
•
If DIN rail mounting is impractical, you can use screws in mounting tabs on the JO-PC1, then in any
end-connected I/O Module. Tab dimensions are on the
of this document.
The following procedure provides step-by-step DIN rail mounting instructions for the controller.
Note
Mount the controller prior to mounting any accessory module (power module, I/O modules).
Procedure 1
To mount on DIN rail
Step 1
Securely install the DIN rail using at least two screws, near both ends of the rail.
Step 2
Position the JO-PC1 on the rail, tilting to hook DIN rail tabs over one edge of the DIN rail (
).
Step 3
Use a screwdriver to pry down the plastic locking clip, and push down and in on the controller, to force
the locking clip to snap over the other edge of the DIN rail.
Step 4
Mount any I/O module onto the DIN rail in the same manner.
Step 5
Slide the accessory along the DIN rail to connect its 20-position plug into the controller.
Step 6
Repeat this for all accessories, until all are mounted on the DIN rail and firmly connected to each other.
Step 7
To keep the final assembly together, secure at both ends with DIN rail
end-clips
provided by the DIN
rail vendor. This also prevents the assembly from sliding on the DIN rail. See
