CTE B-LIFT PRO Series, Instructions For Use And Maintenance Manual, Page: 55 / 148

I n s t r u c t i o n s f o r U s e
a n d M a i n t e n a n c e
Section E 3
The moment limiting device is made up of a device
located inside the boom
(AP1) , a double-channel
control unit (MC2M) and four transducers TS1, TS2,
TS3 and TS4 plus two angle sensors EN1 and EN2.
the device installed inside the boom is composed of
two angle transducers which detect the angle of the
boom
(AP1) .
EN1 and EN2 are two Encoders which detect the
turret rotation angle.
The four transducers
TS1, TS2, TS3 and TS4 ,
installed on the boom movement cylinder valve,
detect the internal differential pressure during
movement.
The central unit (MC2M) will compare the capacity
of the basket and therefore the real pressure
detected by
TS1, TS2, TS3 and TS4 , with the
theoretical pressure obtained by the values detected
by
AP1 , EN1 and EN2 in order to operate in a more
safe work area.
The machine will block every time the internal cylinder
pressure exceeds the reference value set on one of
the two channels of the control unit.
The blocking condition, signalled by a yellow light H6
with an intermittent horn HA1 lasting a few seconds,
inhibits the following from moving:
- extension of telescopic elements;
- boom descent.
All other movements are possible.
The control unit
(MC2M) elaborates the sensor
signals blocking the lift extension and retraction if
exiting the set work curve.
An anomaly to the work field control circuit board
(see pages 8 and 9
Sect. E ), causes:
- horn intervention HA1 (continuous sound).
- continuous blockage of lift extension and retraction
and rotation.
UM0599
TS1
TS2
UM0249
TS3
TS4
Moment limiting device (MC2M)
AP1
EN2
E M E
R G
E N
C
Y
OFF
ON
M
OFF
ON
M
HA1
UM0099
E
M E R G
E
N
C
Y
OFF
ON
M
OFF
ON
M
OFF ON
M
OFF ON
M
EN1
HN2
MC2M
V
CHECKING THE WORKING OF THE
SAFETY DEVICE
PSee the paragraph "List and description" for
checking this safety device ALARMS-
WARNINGS page 4, 5 and 6 Sect. E