Dcp Travel Sequence Definitions - YASKAWA L1000A CIMR-LC F Series Technical Manual Addendum

The lift controller must ensure that the distance is transmitted at least 30 ms before the corresponding deceleration
point is reached. In other words, the reply message from the drive controller, which tells the lift controller whether
the new desired distance is accepted, must have arrived at the lift controller before the deceleration point is
reached, even if the message exchange has to be repeated due to a transmission error.
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Time-out Safety Function
During a travel, if 10 successive messages are received incorrectly or were lost completely (corresponds to 150
ms without communication), the drive controller triggers a fault (DCE1). The stopping method is executed
according to b1-03 setting.
While the drive controller is stopped, if further 10 successive messages are received correctly, the operation
resumes automatically.
There is no error message when the DCP link is interrupted while the drive is stationary.
Note:
To further improve safety, it is recommended that the lift controller also checks if the messages are received correctly. In case of errors,
it should act accordingly.
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DCP Travel Sequence Definitions

This chapter explains the nomenclature used for the diagrams in the following chapters.
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Nomenclature
In the following chapters, the DCP speed notation is used. The following abbreviations are used for the remaining
distances and travel types:
SV5, SV6, SV7, SV1, SV2, SV3, and SV4
SV3' and SV4'
V3' travel, V4' travel, and VN' travel
SV3 (distance for DCP3), SV3' (distance for DCP4)
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Diagrams
The diagrams used in this specification have the following form:
The numbers found in brackets are indicating the chronological order of setting and clearing the individual signals
[(1) -> (2) -> (2b) -> (3) etc.]. The sequence (2b) and (2) can occur simultaneously. Thick signals are considered
activated (logical TRUE).
YASKAWA TOEPC710616134G AC Drive L1000A Technical Manual Addendum
Fixed deceleration distance for DCP3 travels using speeds V5, V6, V7, V1, V2, V3, and V4
Maximum deceleration distance for DCP4 travel limited to V3 and V4
Travel dependent on remaining distance and limited to speed V3, V4, and VN
6 DCP Interface
EN
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