Contract Speed; Traction Sheave Diameter; Gear Reduction Ratio - KEB COMBIVERT F5 Instruction Manual

Parameter Description - Machine Data
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The following parameters relate to the machine data of the elevator. It is important
to enter the correct values, such that both the motor and the car run at the correct
speed.
Contract speed
Traction sheave
diameter
Gear reduction ratio
This is the elevator contract speed.
The speeds adjusted in parameters LF.42...LF.47 are limited by
LF.20. Other internal values are calculated from LF.20.
With an analog speed signal the following is valid:
0 ... ±10V = 0 ... ±contract speed (LF.20)
Unit:
Value range:
Default setting:
Adjustment value:
i
If the motor does not run at the correct speed do not adjust
this parameter! See parameter LF.22.
Unit:
Value range:
Default setting:
Adjustment value:
Enter the actual gear ratio. If the ratio is not known, see param-
eter LF.25 and enter the value from LF. 25 into LF.22
Unit:
Value range:
Default setting:
Adjustment value:
i
The ratio can be determined by counting the revolutions of the
motor during one rev of the traction sheave.
Once the car is running on high speed, if the measured speed
is slightly above or below the contract speed, the gear ratio can
be changed slightly to compensate. Higher values in LF.22 will
increase the car speed, lower values will decrease the car speed.
Make very small changes at first!
feet per minute
0...1600ft/min
0 ft/min
maximum speed of the system
Inches
7.00...80.00 in
24.00 in
measure the sheave diameter
1
1.00 ... 250.00
30.00
in accordance with the gear name plate,
87