YASKAWA L1000H Quick Start Manual page 27

• Removing the wire link from the safety inputs (H1, H2, HC) or activating a digital input,
set to "Base Block"
> coast to stop.
 Leveling Control
In case of wrong setup (e. g. P1 parameter incorrectly entered), the pump might not generate
enough flow to move the car after deceleration from the selected speed to leveling speed.
To allow recovery in such a case, the drive increases the speed automatically in steps up to a
maximum value. Refer to the figure below.
Nominal / Intermediate /
Inspection Speed
Leveling Recovery Upper
Limit (P7-05)
Leveling Speed
Pump Leakage
Upward Run Command
Time
 Energy Saving Mode / Overload Operation
Overload operation is active under either of the following conditions:
1. Motor current (U1-03) exceeds level P8-07 for longer than P8-08 and Soft-starter out-
put frequency (U1-16) is higher than f
speed.
2. Torque has not been captured neither in normal operation nor in condition 1 when speed
selector is opened. Valid for Nominal, Intermediate and Inspection speed.
NOTICE! Energy Saving / Overload Mode can be switched off by setting parameter L3-01 to 0.
Don't do so in case that the drive might get overloaded. Overloaded operation when
setting L3-01 = 0 may yield incorrect travel.
YASKAWA Europe TOEP C710606 91B AC Drive L1000H - Quick Start Guide
Standard procedure
(partially displayed)
Leveling Recovery Wait Time (P7-01)
P7-04
Stops with
LETA alarm
. Valid for Nominal and Intermediate
MIN OL
5 Start Up
EN 27