YASKAWA L1000A Quick Start Manual page 130

4 Start-Up Programming & Operation
• When the lightest load direction is up, the drive stops after Light Load Direction Search and then accelerates upwards to
the Rescue Operation speed set in parameter S4-15. The output terminals set for "Light Load Direction" (H2- = 54)
and "Light Load Direction detection status" (H2- = 55) will close.
Figure 68
Light Load Direction Search status
• When the lightest direction is down, then after Light Load Direction Detection is finished the drive immediately
accelerates to the Rescue Operation speed set in S4-15 without stopping. An output terminal set for "Light load
direction" (H2- = 54) will stay open, and an output terminal set for "Light Load Direction detection status"
(H2- = 55) will close.
Figure 69
Light Load Direction Search status
128
H1- = 55
Off (open)
(Rescue Operation)
Off (open)
Up/Down command
Up command (internal)
Down command (internal)
H2- = 55
H2- = 54
Light load direction
Figure 75 Light Load Direction Detection (Up)
H1- = 55
Off (open)
(Rescue Operation)
Off (open)
Up/Down command
Up command (internal)
Down command (internal)
H2- = 55
H2- = 54
Light load direction
Figure 76 Light Load Direction Detection (Down)
On (closed)
On (closed)
Speed agree torque calculations
Up
Down
Off (open)
Off (open)
On (closed)
On (closed)
Speed agree torque calculations
Up
Down
Off (open)
Off (open)
YASKAWA ELECTRIC TOEP C710616 38H YASKAWA AC Drive-L1000A Quick Start Guide
Up
Elevator moves in the
direction of the light load
On (closed)
On (closed)
Elevator moves in the
direction of the light load
On (closed)