YASKAWA L1000A Quick Start Manual page 105

Table 30 explains the Short Floor and Advance Short Floor functions.
Leveling
Speed Input
Timing
Constant speed
operation at
rated speed
(normal stop
sequence)
(The speed is 40% of the nominal speed or more.)
Operating
speed
0
H1- = 53
(Leveling Speed)
<1>
During
acceleration
(The speed is less than 40% of the nominal speed.)
Operating
speed
0
H1- = 53
(Leveling Speed)
<1>
(The speed is 40% of the nominal speed or more.)
Operating
speed
0
Constant speed
H1- = 53
(Leveling Speed)
operation at <1>
less than the
(The speed is less than 40% of the nominal speed.)
rated speed
Operating
speed
0
H1- = 53
(Leveling Speed)
<1>
Before start
<1> The drive will recognize the speed reference that is lower than the Leveling Speed Detection Level (d1-28) as the leveling speed if the speed
priority is set for multi-step speed reference (d1-18 = 0 or 3).
YASKAWA ELECTRIC TOEP C710616 38H YASKAWA AC Drive-L1000A Quick Start Guide
Table 30 Short Floor Operation Example
Short Floor
Operating
speed
0
H1- = 53
(Leveling Speed)
<1>
d1-19
(Nominal Speed)
40% of nominal
speed
d1-26
(Leveling Speed)
Time
ON(close)
d1-19
(Nominal Speed)
40% of nominal
speed
d1-26
(Leveling Speed)
Time
ON(close)
d1-19
(Nominal Speed)
40% of nominal
speed
d1-26
(Leveling Speed)
Time
ON(close)
d1-19
(Nominal Speed)
40% of nominal
speed
d1-26
(Leveling Speed)
Time
ON(close)
Operates at the leveling speed.
4 Start-Up Programming & Operation
Advanced Short Floor
d1-19
(Nominal Speed)
d1-26
(Leveling Speed)
Time
ON(close)
(The speed is over Optimum Speed.)
Operating
speed
0
H1- = 53
ON(close)
(Leveling Speed)
<1>
(The speed is optimal speed or less.)
Operating
speed
S5-03
0
H1- = 53
ON(close)
(Leveling Speed)
<1>
Not Available.
d1-19
(Nominal Speed)
Optimal Speed
d1-26
(Leveling Speed)
Time
d1-19
(Nominal Speed)
Optimal Speed
d1-26
(Leveling Speed)
Time
4
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