5.2 Binary Speed Selection
Binary speed selection utilizes three digital inputs assigned in LI04-11 as Speed
Selection (27) to select up to seven speeds. Input priority will be I1>I2>...I8. The input
logic table can be defined in LI03 Speed Input Decoding and or Custom Input Decoding
LI16 as to which corresponding speed in the LS parameter group is selected.
The speed profile between selected speeds will be internally generated by the drive
according to the programmed acceleration, deceleration, and jerk rates in the LS
parameters group.
The direction is determined by digital inputs assigned in LI04-11 as Up (25) and Down
(26). Both direction signals cannot be signaled simultaneously at the beginning of a run,
This fault can be cleared with the fault
reset input.
Refer to LI15 Direction Selection Inputs, pg. 97 for additional direction selection
options.
Binary speed selection utilizes three binary-coded inputs for up to seven speeds.
Older KEB elevator control schemes and worldwide variants are available. Because of
this, several different logic tables for the binary speed selection are available:
Table 5. Binary speed selection inputs
The following are the corresponding logic tables. Although inputs I2...I4 are shown, the
inputs used for speed selection are configurable and can be defined in LI04-11.
To Next Page
Loading...
