Page
37
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42
Fuji Electric Europe GmbH
13. Special operation
13.1 Creepless operation
Functions L31 (linearization factor from linear to rotational speed) and L34 (travelling distance for creepless
operation) MUST be calculated and set before using creepless operation.
Creepless operation starts when all speed selection signals are removed during deceleration from High speed to
Creep speed (after removing the signals for High speed and before reaching Creep speed). For better landing
performance it is needed to set up properly functions L36 to L42 (ASR gains).
High speed
Speed
Time
Stop speed
ON
FWD
SS1
SS2
ON
ON
SS4
ON
Open
Brake
Creepless
Zero speed
active
Rated speed
active
L19: S-Curve 1
E12: Acc./Dec
Time 5
L25: S-Curve 7
L24: S-Curve 6
E13: Acc./Dec. Time 6
L28: S-Curve 10
Theoretical start point od
Creepless operatiion
Real start point of
Creepless operation
(Calculated from remaining distance)
Figure 32. Creepless operation.
14. Recovering the lift from speed limiter condition
To recover the lift from speed limiter condition (cabin or counterweight are blocked), use inspection speed
(C06). The reason is that S curve is not effective (only linear acceleration/deceleration) when inspection
speed is used.
If the jerk is not enough to recover the lift, decrease the value of function F07 to increase the jerk against the speed
limiter condition.
