LAUNCH
TLT830WA INSTALLATION MANUAL
4
2.2 Electrical Diagram
Fig.2
Press the big scissors UP button SB1, the contactor KM
closes, gear pump driven by the motor supplies the oil
through the actuated solenoid valve YA1 to supply oil to the
big scissors cylinders which in turn drives the platforms
rising by getting the oil; Release the UP button SB1, the
contactor KM disconnected, the motor is out of power, and
the platforms stop rising. If keep on pressing SB1, the
platforms will reach a certain height and touch the height
limit switch SQ1, then the contactor KM will be cut out of
power, and the platforms stop rising to protect the lift.
When the big scissors reach a desired height, release the
button SB1. Press the SAFETY LOCK button SB5, the
solenoid valve YA1 and YA3 will get the power to lower the
platforms. Since the safety air valve YA4 is not active at this
time, and the safety ratchet will be engaged to prevent the
platforms from lowering, so that vehicle servicing can be
carried out.
After servicing the vehicle, press the big scissors DOWN
button SB2, the solenoid valve YA1, relay KA and time relay
KT will be actuated to supply oil to big scissor cylinders
which in turn drives the platforms rising, while the actuated
air cylinder (valve YA4) will push the safety ratchet away
from locking position. After a few seconds of rising, the time
FU2-3:AC380V
W
U
V
M
3~
V
21
U
21
W
21
QC
KM
PE
L1
L2
L3
24V~
T
AC220V/380V 3PH
V
11
U
11
W
11
FU1
FU2
/
(
0.5A
）
FU3
( 4A
）
U
V
M
1~
V
21
U
21
QC
KM
PE
L1
L2
AC220V 1PH
V
11
U
11
FU1
FU2
2
3
FU2
3
FU2-2:AC220V
FU2
2
KT
—时间继电器（
Time relay
）
YV1
—大剪上升电磁阀（
Big scissor lifting electromagnet valve)
YV2
—小剪上升电磁阀（
Small scissor lifting electromagnet valve)
YV3
—下降电磁阀（
Lowering valve)
YV4
—小气动电磁阀（
Small
air valve)
KA
—继电器（
Relay
）
KM
—接触器（
Contactor
）
YV5
—大气动电磁阀（
Big air valve)
H
—蜂鸣器（
Buzzer
）
