Electro Cam EC-3400 Series - Manual (Page 3)

page 3
All EC-3000 Series units are housed in NEMA 12 enclo-
sures. All EC-3400 Series units are housed in NEMA 4X
stainless steel enclosures. All units have either right, left,
or double-ended shaft extensions with a #606 Woodruff
Key provision; Nema 4X models have a double-ended
stainless steel shaft. The cover plate on the EC-3400 Se-
ries units is secured with clamps to avoid contamination.
Five standard EC-3000 Series and four standard EC-3400
Series models are available:
Model Outputs Standard Shafts*
EC-3004/EC-3404 4 Right, left, or double
EC-3008/EC-3408 8 Right, left, or double
EC-3012/EC-3412 12 Right, left, or double
Standard Models
* See dimensional drawings for shaft illustrations.
Special shafts can be supplied. Please enclose shaft
drawing and specs with your order. All NEMA 4X
units are ONLY available in double-ended shafts.
Options
Pulse Generating Discs
Multi-output pulse generating discs are an option offered
for applications requiring multiple outputs per revolution.
These discs are most often used to generate timing pulses
for tachometers, motion detection, glue stitching, or wher-
ever multi-pulse signals are required. Glue stitching pat-
terns on carton and case sealing equipment is an example
of an application that benefits from pulse generating discs.
Standard pulse discs are available with 1, 2, 3, 4, 6, 7, 10,
16, 20, 32, 60, and 64 slots per revolution, allowing for
quick changeover. Pulse generating discs must be ordered
with the unit. The discs are factory mounted on the cam
shaft, and each disc replaces one set of adjustable cams.
See Publication 107B for more detailed information.
Sprocket Disengagement Clutch
The sprocket disengagement clutch is essential in situa-
tions where the shaft needs to be easily disconnected from
the sprocket without removing the chain. The clutch not
only allows for disengagement of one station of the ma-
chine to check operation without jogging the entire ma-
chine, but it simplifies the adjustment of the rotary cam
limit switch. The clutch automatically locks back in the home
position after one revolution. The clutch has a 3/4 inch
bore with the provision for a #606 Woodruff key. There are
five standard and numerous special sprockets
available. See Publication 108B for more detailed infor-
mation.
External Degree Wheel and Pointer
An internal degree wheel and pointer is included with each
EC-3000 and EC-3400 unit for reference during cam
adjustment. To visually determine shaft position without re-
moving the cover, an optional external degree wheel and
pointer is available. This option must be ordered with the
unit, and requires a double-ended shaft for mounting.
Specify mounting on left- or right-hand shaft (see mount-
ing dimensions), and clockwise or counterclockwise rota-
tion as viewed from end of shaft.
CFX for High Shock / Vibration
For extremely high shock or vibration, such as punch press
applications, a CFX option may be needed on the EC-3000
or EC-3400 units. The CFX option adds clear conformal
coating on both sides of the printed circuit board and re-
movable jumpers replace the DIP switch. The jumpers
eliminate the possibility of intermittent connection to the
DIP switch or the accidental changing of the DIP switch
setting through shock or vibration.
CF for Highly Contaminating Environments
For highly contaminating environments, the CF option may
be ordered with the EC-3000 units. The CF option adds
clear conformal coating to both sides of the printed circuit
board. This option is standard on all EC-3400 units.
Model EC-3004-10-ARO