KEB COMBIVERT F5-A, Руководство по применению, Страница: 216 / 552

Page 7.6 - 16 COMBIVERT F5-A, -E, -H © KEB, 2012-10
Motor data and controller adjustments of the synchronous motor
Picture 7.6.3.4b
0
20
40
60
80
100
120
140
160
0 0,25 0,5 0,75 1 1,25 1,5
Zeit / s
Drehzahl / min-1
Rampenausgang
ru.02
nn.09
nn.08
Example:
Ud.02 = 8: F5S / 4000 rpm
nn.08 = 80 rpm
nn.09 = 6.25 s
Open loop operation/ start ramp
The open loop operation is activated with bit 9 of nn.00 "motor model select" and is only active during
Start ramp active. Condition:start ramp is parameterized.
The current of nn.01 "stabilisation current" must be regarded as maximum active current. The current ramp of
nn.02and nn.03 must be parametrized by such way (see also chapter 7.6.3.5 "Low speed") that the lowering of
current (nn.03) is upside the deactivation of the open-loop operation (nn.03 > nn.08).
7.6.3.5 Low speed
The critical speed range (typically below 1% of the rated speed) is stabilized by reactive current. This current
adjustable in nn.01 "stabilisation current" is linear reduced depending on the actual speed in ru.07 from speed
nn.02 "min speed for current" to nn.03 "max. speed for current".