4.6 Setup Procedure for Elevator Applications
After setting load conditions 1 and 2, perform a trial run. If required, parameter S3-12 can be set up to add a bias to the
load sensor input when riding in a Down direction (default: 0.0%, same torque compensation characteristics in up and
down direction).
Figure 4.15
illustrates the effect of torque compensation on the settings of S3-12 and S3-27 through S3-
30.
S3-28
(Torque Compensation
Value with Load Condition 2)
S3-27
(Torque Compensation Value
with Load Condition 1)
Torque Compensation
at Start for the Elevator
in Down Direction
S3-29
(Analog Input
from Load Sensor
with Load
Condition 1)
During Load Condition 2
Torque Compensation
at Start for the Elevator
in Up Direction
S3-12 (Starting Torque
Compensation Bias during Lowering)
S3-30
(Analog input
from Load Sensor
with Load Condition 2)
Analog Input Voltage (V)
During Load Condition 1
0
F ig u r e 4 .1 8 T o r q u e C o m p e n s a t io n a t s t a r t f o r t h e E le v a to r in U p a n d D o w n D ire c tio n
• Adjustments for Elevator Ride Comfort
This section explains the adjustment o f drive settings used to eliminate problems with hunting, vibration, and rollback.
Perform the steps presented in this section after the Basic Application Setup procedure is complete. Also refer to
Riding
Comfort Related Problems on page 128
for further descriptions on how to resolve riding comfort problems.
■ Speed Loop Adjustments (CLV and CLV/PM)
The speed control loop uses four different gain and integral time settings that can be adjusted using C5-D D parameters.
The settings are switched over when the motor speed reaches the level set in parameter C5-07.
• Proportional gain and integral time C5-03/04 are used at start when the speed is lower than the setting o f C5-07.
• Proportional gain and integral time C5-01/02 are used at speeds above the setting o f C5-07.
• Proportional gain and integral time C5-13/14 are used at stop when leveling speed is selected as speed reference and
the speed is lower than the setting o f C5-07.
• Proportional gain and integral time C5-19/20 are used During Position Lock at start in CLV/PM.
Increase the gain and shorten the integral time to increase speed control responsiveness in each o f the sections. Reduce
the gain and increase the integral time if vibration or oscillation occurs.
YASKAWA ELECTRIC SIEP C710616 33D YASKAWA AC Drive L1000A Technical Manual
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