Functions and parameters
Operating principle
© BT
Repair manual
SWE100, 120, 120L, 120S, 140, 140L, 200D
6 – 5
Order no..
Date
Valid from serial no.
T code
258946-120
2012-08-30
6061850-
841×842×843
Event:
7. Reversing braking
Preceding event(s)
Truck travels in fork or drive wheel direction.
Action(s)
Speed control turned to opposite travel direction.
Influencing
elements
Parameter 201.
Resulting
conditions
The drive motor [M1] works as a generator and via the transistor regulator
[T1] converts the truck's kinetic energy into electricity, thus reducing the
truck’s speed. The excess energy, in the form of electricity, is fed back to
the battery [G1] helping to recharge it. The braking effect increases the
more the speed control is turned.
The mechanical brake [Q1] [T1:OUT. BRAKE RELEASE] is applied when
the truck stops.
Event:
8. Mechanical braking
Preceding event(s)
Truck travels in fork or drive wheel direction.
Action(s)
The tiller arm is folded completely up or down.
Influencing
elements
Sensor
for tiller arm in drive position [B60].
Resulting
conditions
Sensor for tiller arm in drive position [B60] deactivated [T1: INP. TILLER
ARM IN DRIVE POS] {low}.
When the tiller arm is completely raised or lowered, maximum permitted
brake reduction is applied for 200 ms or until the travel speed is lower than
0.8 m/s. After this, the mechanical brake
[Q1] is applied. [T1:OUT.BRAKE
RELEASE] {high}.
Event:
9. Anti-collision safety switch
Preceding event(s)
Truck travels in drive wheel direction.
Action(s)
When driving in the drive wheel direction, the anti-collision safety switch
[A5:S17]is pressed.
Influencing
elements
Safety switch [A5:S17].
Resulting
conditions
The Hall-sensor [A5:S17] is immediately activated. The logic card [A5]
interprets this signal as a command to the transistor regulator [T1] to
operate the drive motor at reduced speed in the fork direction for as long
as the anti-collision safety switch
[A5:S17] is kept pressed. The command
signal for normal running of the drive motor from the speed control is
blocked until the speed control is released and returned to the neutral
position.
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