Electro Cam PS-6000 Series - Manual (Page 3)

Timed Outputs
Timed outputs are programmed like standard outputs to turn
“ON” and “OFF” at specific points of resolver rotation. How-
ever, once a timed output turns ON, it will remain ON for a
specified time period. Timed outputs are used to drive devices
such as heat seal bars, spot welders, etc., that require a fixed
time to perform a task, regardless of machine speed.
Selectable Scale Factor
The Scale Factor, or number of increments per revolution, can
be programmed by the user. Standard controls have a maxi-
mum of 1024 increments per revolution, while controls avail-
able with an “-H” option have a maximum of 4096 increments
per revolution. Scale Factor can be defined to correlate to Real
World increments. For example, a controller could be pro-
grammed so that one increment of rotation corresponds to 0.1"
of travel.
Serial Communication
Using Electro Cam Corp.’s PLuSNet software for IBM-PC com-
patible computers, the controller’s entire program can be saved
to a disk file or loaded from a disk file to the control. The pro-
gram can be printed or edited using the computer. Using MMI
software, it is also possible to send individual communication
commands to the control, while running, to change settings in
the program.
Motion Detection
Two speed ranges can be programmed into the controller, and
specified outputs can then be enabled or disabled, based on
the machine speed being within the designated range. This fea-
ture can turn off outputs if the machine stops; disable outputs
until the machine reaches a minimum speed; or disable out-
puts if the machine exceeds a specified speed. In adhesive
applications, speed range logic is often used to turn off the flow
of adhesive if the conveyor carrying products stops.
Analog Output
PS-6000 controllers can drive two analog output modules whose
output signals will be linearly proportional to RPM. The analog
signal level at zero RPM can be programmed, as well as the
RPM that corresponds to maximum signal. No measuring equip-
ment is required for initial setup, and calibration is not needed.
Typical uses for the analog output are to control adhesive pres-
sure as machine speeds change, or to match speeds of other
equipment to the machine being controlled by the PS-6000.
Multiple Programs
Up to 48 programs can be stored in the control’s memory, each
containing different setpoints. To change product size or con-
figuration, simply switch program numbers and all of the out-
put settings will change accordingly. Program numbers can be
selected by the keypad/display, mechanical switches, PLC DC
outputs, or serial communication messages.
Output Speed Compensation
Speed compensation allows outputs to compensate for lag-
ging response times of the controlled devices by turning on
earlier as machine speeds increase. This eliminates the need
to manually adjust output settings whenever machine speeds
are changed, allowing high production speeds
.
Internal High Speed Logic
Outputs can be divided into Groups, and each Group can be
associated with an input device to perform discrete logic. There
are six different modes of operation, or logic functions, that
can be selected for each Group. For example, some modes
activate the Group only when the input has signaled that prod-
uct is present. Adhesive control is a typical application where
outputs are disabled until product is sensed. Output grouping
is a powerful tool in many applications because each Group
can be in any of the six modes and operate independently of
the other Groups.
Standard PS-6000 Series Features
Gray Code Position Output, “-G” & “-G10”
The “-G” option provides eight bits of position information to a
PLC or other electronic control device, eliminating the need for
expensive PLC accessory cards. The "-G10" option provides
ten bits of position information. This allows the PLC to control
non-critical machine functions, while the PL
µ
S directly handles
high-speed machine control.
High Resolution, “-H”
Controls with this option can divide the resolver revolution into
as many as 4096 increments, while standard controls have a
maximum of 1024 increments. The control program allows re-
solver resolution to be set for any value in the range of 2-4096.
Large Program Memory, “-F”
Controls with the “-F” option can store up to 256 programs con-
sisting of not more than 4589 output pulses total; standard con-
trols can store up to 48 programs. This additional program stor-
age capability is useful for applications requiring multiple com-
plex programs, or those requiring the storage of more than 48
programs.
Leading/Trailing Edge Speed Comp, “-L”
Controls with this option allow the "ON" and "OFF" edges of
output pulses to be speed compensated by different amounts.
If a device has “ON” and “OFF” response times that are differ-
ent, it may be necessary to compensate the “ON” edge by a
different amount than the “OFF” edge. This will ensure that the
device stays properly synchronized to the machine over a wide
range of speeds. High-speed adhesive application is an exam-
ple that can benefit from this feature.
NEMA 4X Keyboard Boot, “-W”
Controls with the “-W” option are shipped with a clear silicon
rubber boot fitted over and around the keyboard area. The boot
provides a good seal between the back of the keyboard and the
control panel. The boot is transparent and pliable, allowing the
keyboard to be viewed and operated. In addition to preventing
contamination from harsh chemicals, the boot protects the key-
board from washdown damage.
Modbus™ ASCII Communication , “-MB”
See page 4.
Multiple Controllers Used with One Resolver, “-MSV”
See page 5.
PS-6000 Series Options
3
Certifications are standard.