5
Mounting
Mount the VWG in a location that allows clearance for wiring, servicing, and antenna removal.
Environmental Requirements
Note the following requirements for the VWG mounting location:
•
This product is intended for indoor use only. Do not expose the unit to ambient conditions outside of the range of
0ºC (32
º
F) to 50
º
C (122
º
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. 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.
Physical Mounting
The following information applies about physically mounting the unit.
•
You can mount the VWG in any orientation. It is not necessary to remove the cover before mounting.
•
Mounting on a 35mm wide DIN rail is recommended. The VWG unit base has a molded DIN rail slot and locking
clip, as does the VWG-PS-DS 24Vac power supply module.
•
If DIN rail mounting is impractical, you can use screws in mounting tabs on the VWG
The following procedure provides step-by-step DIN rail mounting instructions for the VWG.
Mount the VWG prior to
mounting any accessory items.
P r o c e d u r e 1 - T o m o u n t o n D I N r a i l
Step 1
Securely install the DIN rail using at least two screws, near both ends of the rail.
Step 2
Position the VWG on the rail, tilting to hook DIN rail tabs over one edge of the DIN rail
Step 3
Pull out the DIN rail clip and push down and in to force the DIN rail clip to snap over the other edge of the DIN
rail.
Step 4
To prevent the VWG from sliding on the DIN rail, secure with clips provided by the DIN rail vendor, or place a
screw in one of the four mounting tabs in the base of the VWG.
Step 5
If VWG-PS-DC 24 Vac power supply is used, mount onto the DIN rail in the same manner.
