34
Installation and use
SEEDER MAT MCK 2500 SX
5.6 Programming the alarms RPMs, “Speed”, “Mode”,
“Tramline”, and “Disk” constants, and SELF-ACQUISITION
procedure
The
MCK 2500 SX
computer is capable of visualizing, on the display, the value of the
rotations per minute (RPMs) of the turbine. It can also keep the rotations under
control, and simultaneously control another secondary rotating part (distributor), as
well as signal the operator when these rotating parts slow down excessively or if they
stop working. To display the exact RPM value of the primary part and determine the
minimum rotation threshold of both parts, proceed as follows:
1) program the number of impulses/rotations of the turbine: turn on the instrument
while keeping the
M.
key pressed: the indication “
i – 2.0
” will appear on the
computer. With the
and
keys, change the number and program the
reference number detected by the special RPM inductive sensor for every rotation of
the turbine (in the examples on pg. 14 and 15, the number to program is 2.0 ) .
Programmable field
:1.0 ÷ 20.0
step
: 0.1
default
: 2.0
Confirm the data by pressing the
M.
key. The following indication will appear on
the display:
2) In parameter “A”, the minimum alarm threshold for the RPMs of the primary and
secondary organs can be programmed: the value near the letter “A” indicates the
percentage
(in the example: 80%) of the RPMs under which the computer will then
activate the alarm. The percentage is referred to the value of the RPMs memorized
with the “SELF-ACQUISITION” procedure (see point 3). This means that, in our
example, if during the working process, one or both of the parts controlled slow down
until they reach a value that is lower than 80% of the RPM value memorized with the
Self-Acquisition procedure, the relevant alarm will be activated (acoustic and visual).
Practical example: If the value acquired for the turbine RPMs is 3,000, the alarm will
activate when the RPMs are lower than 2,400.
Programmable field
: 1 ÷ 99
step
: 1
default
: 0
