Instruction Manual for AS380 Series Elevator Integrated Drive Controller
Chapter 8 Elevator Elevator Commissioning Guide
Diagram 8.3 Elevator operation curve segment PI control chart
Seen from the figure above, the PID regulator of this inverter is adjusted in three different
speed sections, which facilitate the commissioning work. In case of poor comfort effect in
high-speed section, it will be enough to adjust PID parameters in high speed section, which has
little impact on the other two sections. Similarly, in case of poor comfort effect in medium and
low-speed sections, it will be enough to adjust the corresponding PID parameters. Because
different sections require different PID parameters to achieve the best comfort, adjusting PID
values by sections can make each speed section gain their best effect.
3) Adjust Elevator Operation Curve
The shape of elevator operation curve will also directly affect the comfort of elevator. In
order to satisfy passengers‘ requirements for comfort and operational efficiency, the elevator
should run according to the S-curve as shown in Diagram 8.4. The system can adjust the
acceleration / deceleration slopes of the S curve and time constant at the four corners to ensure the
comfort and operational efficiency of the elevator. The main parameters that may affect the curve
are as follows.
Recommended values
and reference range
The smaller this value is, the more stable the acceleration
is. But too small will be inefficient. The greater this value
is, the more sudden the acceleration is: ① if too sudden,
users do feel uncomfortable; ② too sudden can lead to
over-current fault. General 0.400 for 1m / s, 0.500 for 1.5 ~
1.8m / s and 0.600 for 2.0m / s are appropriate. Especially
it should not be great for elevators in hotels or the
residential elevators with many children and old people.
The smaller this value is, the more stable the acceleration
is. But too small will be inefficient. The greater this value
is, the more sudden the acceleration is: ① if too sudden,
users do feel uncomfortable; ② too sudden can lead to
over-current fault. General 0.400 for 1m / s, 0.500 for 1.5 ~
1.8m / s and 0.600 for 2.0m / s are appropriate. Especially
it should not be great for elevators in hotels or the
residential elevators with many children and old people.
T0: transition time curve from start-up to acceleration
beginning, the greater the value is, the more stable the
start-up is. In this time, the elevator runs at very low speed.
But too long may lead to failure of motor to drag the
elevator and cause "PGO" fault, or over-current fault,
especially when lift car is fully or heavily loaded.
T1 is the transition time curve between acceleration end to
the highest speed, T2 is the transition time curve between
the highest speed deceleration beginning.
T1 and T2 have no significant effect on comfort, generally
not adjusted. If T2 adjusted too much, may lead to level
rush.
T3is the transition time curve between deceleration end
tostop, the greater the value is, the more stable the stop is.
In this time, the elevator runs at very low speed. But too
long may lead to failure of motor to drag the elevator and
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