YASKAWA L1000A - Troubleshooting

4.6 Setup Procedure for Elevator Applications
132 YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual
Procedure for Load Condition 2 (S3-28, S3-30)
1.
Set the speed reference to 0%.
2. Apply load to the car has much as possible (at least 50% of the maximum weight).
3. Note the value of the analog input monitor for the load signal input connected to (U1-13 for terminal A1, U1-14 for
terminal A2).
4. Provide an elevator Up or Down command, using Inspection Operation or normal operation mode. The car
should be held in place when the brake releases.
5. Note the drives internal torque reference monitor U1-09.
6. Stop the drive.
7. Set the value noted in step 3 to parameter S3-30. Set the value noted in step 5 to parameter S3-28.
Figure 4.19 shows the Torque Compensation at Start settings with parameters S3-27 to S3-30.
The solid line in Figure 4.19 indicates the torque compensation at start when the elevator moves up or down.
Figure 4. 14
Figure 4.19 Torque Compensation at start for the Elevator in Up and Down Direction
Note: PRG: 7015 or earlier will apply a limit at 0 V torque compensation input value.
PRG: 7016 or later have no torque compensation limit when adding negative voltage to analog input voltage (see Figure 4.19).
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 4.20 illustrates the effect of torque compensation on the settings of S3-12 and S3-27 through
S3-30.
Figure 4. 15
Figure 4.20 Torque Compensation at start for the Elevator in Up and Down Direction
Analog Input Voltage (V)
S3-30
(Analog input
from Load Sensor
with Load Condition 2)
S3-29
(Analog Input from
Load Sensor
with Load
Condition 1)
S3-27
(Torque Compensation Value
with Load Condition 1)
S3-28
(Torque Compensation
Value with Load Condition 2)
0
During Load Condition 2
During Load Condition 1
Torque Compensation Value
S3-30

S3-27
S3-28
(Torque Compensation
Value with Load Condition 2)
Torque Compensation
at Start for the Elevator
in the Down Direction
S3-29
(Analog Input
from Load Sensor
with Load
Condition 1)
(Torque Compensation Value
with Load Condition 1)
During Load Condition 2
Torque Compensation
at Start for the Elevator
in the Up Direction
S3-12 (Starting Torque
Compensation Bias during Lowering)
(Analog input
from Load Sensor
with Load Condition 2)
Analog Input Voltage (V)
During Load Condition 1
0
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