Groeneveld BreakAlube-3, Общее руководство

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BreakAlube-3
F600775R00 10 Component description
Automatic Greasing System
Release date: September 2014
3.3 The control unit
The control and monitoring unit initiates and controls the greasing cycles of the greasing sys-
tem. All required system and program parameters (e.g. interval time, grease delivery) can be
set. The control unit monitors the performance of various components of the greasing system
and processes, stores and reports the malfunctions it detects.
The control unit can be programmed or read out using a UniGINA (Universal Groeneveld
tester INstallation and Analysis).
F5
F1
F6
F2
F7
F3
F8
F4
SHIFT
ENTER
OFF
ON
&
A
1
B
2
C
3
D
4
G
5
H
6
I
7
L
8
M
0
R
9
N
#
F
%
K
(
P
+
U
)
Q
-
V
/
W
*
Y
=
Z
?
T
CUR
S
:
O
<
J
>
E
.
Z
,
SPC
CAPS
LOCK
NUM
LOCK
BGN PAGE END
CNTR
LGHT
PAGE INS
DEL
3.3.1 Behaviour during power off / on
When power to the system is switched off (power down), the software saves several variables
in the control unit memory bank. These are retrieved at power on, so the software can resume
operation at the point when the power was switched off. This means that when, for example,
the system is switched off during a pump cycle, the remaining pump revolutions needed to
finish the pump cycle are stored in the memory bank. When the system is powered again, the
previously aborted pump cycle is resumed and the remaining pump revolutions finished.
3.4 The plunger pump
The electric motor drives the plunger pump through a reduction gear. The plunger pump
comprises a drive shaft with excentric cam, a cylinder with piston and a non-return valve.
The excentric cam moves the piston back and forth, once every revolution of the cam shaft.
During the return stroke of the piston, grease is sucked from the reservoir into the cylinder
(through an opening in the cylinder wall).
During the forward stroke of the piston, the grease is pressed, via the non-return valve, to-
wards the outlet of the pump unit.
The amount of grease supplied during each stroke (revolutions of the cam shaft) depends on
the (fixed) diameter of the cylinder and the stroke length of the piston.