S2: Slip Compensation For Elevators - YASKAWA L1000A Technical Manual

5.11 S: Elevator Parameters
Setting 0: Disabled
Setting 1: Enabled
Setting 2: Enabled during Auto-Tuning and HBB
WARNING! Sudden Movement Hazard. Use parameter S1-12 to enable/disable automatic switching of the Motor Contactor Control
output signal during Auto-Tuning. When using setting S1-12 = 1 or 2, ensure that the multi-function output terminals are properly wired
and in the correct state before setting parameter S1-12. Failure to comply could result in damage to the drive, serious injury or death.
S1-26: Emergency Stop Start Level
■
Note: Available in drive software PRG: 7017 or later.
Sets the Emergency Stop Start Level as a percentage of the Maximum Output Frequency. This setting is available when
the control mode is set to Closed Loop Vector Control (A1-02 = 3) or Closed Loop Vector Control for PM Motors (A1-02
= 7) and the stopping method is set to Elevator Emergency Stop (b1-03 = 4).
The drive coasts to a stop after the Up/Down command is cleared and when the value of U1-05 (Speed Feedback) is equal
to or greater than the value of S1-26 (Emergency Stop Start Level).
The drive ramps to a stop after the Up/Down command is cleared and when the value of U1-05 (Speed Feedback) is lower
than the value of S1-26 (Emergency Stop Start Level).
No.
S1-26

◆ S2: Slip Compensation for Elevators

The slip compensation function automatically adjusts the speed reference for leveling operation depending on the load
measured at constant speed. S2 parameters tune the slip compensation function to improve the landing accuracy. Slip
Compensation requires that the drive be set for V/f Control or Open Loop Vector Control.
■ S2-01: Motor Rated Speed
Sets the rated speed of the motor.
No.
S2-01
S2-02/S2-03: Slip Compensation Gain in Motoring Mode / Regenerative Mode
■
Slip compensation for leveling speed can be set separately for motoring and regenerative states to help improve the
accuracy of leveling.
No.
S2-02
S2-03
S2-05: Slip Compensation Torque Detection Delay Time
■
Sets a delay time before detecting torque for slip compensation.
No.
S2-05
S2-06: Slip Compensation Torque Detection Filter Time Constant
■
Sets the filter time constant applied to the torque signal used for the slip compensation value calculation.
No.
S2-06
260
Parameter Name
Emergency Stop Start Level
Parameter Name
Motor Rated Speed
Parameter Name
Slip Compensation Gain in Motoring Mode
Slip Compensation Gain in Regenerative Mode
Parameter Name
Slip Compensation Torque Detection Delay Time
Parameter Name
Slip Compensation Torque Detection Filter Time Constant
YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual
Setting Range
0.0 to 100.0%
Setting Range
300 to 1800 rpm
Setting Range
0.0 to 5.0
0.0 to 5.0
Setting Range
0 to 10000 ms
Setting Range
0 to 2000 ms
Default
10.0%
Default
1380 rpm
Default
0.7
1.0
Default
1000 ms
Default
500 ms