4.6 Setup Procedure for Elevator Applications
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 d1-25. The output terminals set for “Light Load Direction” (И 2-ПП =
54) and “Light Load Direction detection status”(H2-DD = 55) will close.
Н1-П П -
5 5
off (open)P
(Rescue Operation)
On (closed)
Up/Down command Off (open)
Up command (internal)
Down command (internal)
Н2-ПП - 55
(Light Load Direction Search status)
Н2-ПП - 54
(Light load direction)
On (closed)
Speed agree torque calculations
Off (open)
Elevator moves in the
direction of the light load
On (closed)
Off (open)
On (closed)
F ig u r e 4 .3 6 L ig h t L o a d D ire c tio n D e te c tio n (Up)
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 d1-25 without stopping. An output terminal set for “Light load
direction” (H2-DD = 54) will stay open, and an output terminal set for “Light Load Direction detection status”(H2-
□ □ = 55) will close.
Н1-П П -
5 5
Off (open) [
(Rescue Operation)
On (closed)
Up/Down command Off (open)
Up command (internal)
Down command (internal)
Н2-ПП - 55
(Light Load Direction Search status)
Н2-ПП - 54
(Light load direction)
On (closed)
Speed agree torque calculations
Off (open)
Elevator moves in the
direction of the light load
On (closed)
Off (open)
F ig u r e 4 .3 7 L ig h t L o a d D ire c tio n D e te c tio n (D ow n)
YASKAWA ELECTRIC SIEP C710616 33D YASKAWA AC Drive L1000A Technical Manual
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