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COMBIVERT F5-A, -E, -H
© KEB, 2012-10
Motor data and controller adjustments of the asynchronous motor
7.5.2.4.1
ASCL / low speed operation
The operation at small speed is a critical range which should be passed very quickly.
The size of this range cannot be indicated universally valid. It is strongly dependent on the used motors.
The usable speed range for standard-asynchronous motors is approx.:
Power
mot. opera-
tion
gen. opera-
tion
2.2 kW
1 : 50
1 : 20
85 kW
1 : 100
1 : 50
Start-/ stop ramp for low speed (dS.21 / dS.22)
In order to leave the critical range of small speed at starting and stopping there is an additional ramp for this
range.
The ramps is defined by parameter dS.21 "auxilliary ramp/ speed limit" and dS.22 "auxilliary ramp/
time".
Parameter dS.21 indicates the speed range for which the start ramp applies. dS.22 indicates the acceleration-/
deceleration time.
200 min
-1
Anzeige Rampenausgang
( ru.02 )
Zeit
0,2 s
Example:
ud.02 = 4 (4000 rpm mode)
dS.21 = 200 rpm
dS.22 = 1s
ASCL model shutoff during deceleration (dS.19, dS.20)
If the drive is to be stopped, the critical range of low frequencies must be passed again.
The additional problem of the drive not stopping completely, but instead running permanently at a low frequency
with a very high current occurs here, leading to a miscalculation of the speed.
Under the following conditions, therefore, the mode is switched from vector controlled to current regulated,
frequency controlled operation:
- Drive decelerates
- the
estimated output frequency is smaller than dS.19 ("speed limit model switch-off DEC")
The drive then shows the following behaviour:
- the
output frequency is ramped down according to the adjusted deceleration ramp
- the
current is kept constant starting from the switching time
The parameter dS.19 is loaded with a default
value by the identification or by Fr.10 "reset field-oriented control
-
ler parameters". Should problems still occur during deceleration, the value for dS.19 can be increased.
Содержание COMBIVERT F5-A
Страница 1: ...KEB COMBIVERT F5 A E H 4 4 APPLICATION MANUAL Mat No Rev 00F5AEA K440 1A...
Страница 2: ...Page 1 1 2 COMBIVERT F5 A E H KEB 2008 02 Table of contents...
Страница 4: ...Page 1 1 4 COMBIVERT F5 A E H KEB 2008 02 Table of contents...
Страница 14: ...Page 1 1 14 COMBIVERT F5 A E H KEB 2008 02 Table of contents...
Страница 20: ...Page 2 1 6 COMBIVERT F5 A E H KEB 2012 10 Product Overview...
Страница 28: ...Page 3 1 8 COMBIVERT F5 A E H KEB 2012 10 Control Units...
Страница 34: ...Page 4 1 6 COMBIVERT F5 A E H KEB 2012 10 Fundamentals...
Страница 40: ...Page 4 2 6 COMBIVERT F5 A E H KEB 2012 10 Password input...
Страница 42: ...Page 5 1 2 COMBIVERT F5 A E H KEB 2012 10 Selection of Operating Mode...
Страница 46: ...Page 5 1 6 COMBIVERT F5 A E H KEB 2012 10 Selection of Operating Mode...
Страница 70: ...Page 6 2 20 COMBIVERT F5 A E H KEB 2012 10 Start up...
Страница 140: ...Page 7 3 44 COMBIVERT F5 A E H KEB 2012 10 Digital in and outputs...
Страница 200: ...Page 7 5 38 COMBIVERT F5 A E H KEB 2012 10 Motor data and controller adjustments of the asynchronous motor...
Страница 207: ...Motor data and controller adjustments of the synchronous motor KEB 2012 10 COMBIVERT F5 A E H Page 7 6 7 7...
Страница 238: ...Page 7 7 12 COMBIVERT F5 A E H KEB 2012 10 Speed control...
Страница 254: ...Page 7 8 16 COMBIVERT F5 A E H KEB 2012 10 Torque display and limiting...
Страница 260: ...Page 7 9 6 COMBIVERT F5 A E H KEB 2012 10 Torque control...
Страница 292: ...Page 7 11 26 COMBIVERT F5 A E H KEB 2012 10 Speed measurement...
Страница 432: ...Page 7 14 14 COMBIVERT F5 A E H KEB 2012 10 Parameter sets...
Страница 466: ...Page 7 15 34 COMBIVERT F5 A E H KEB 2012 10 Special functions...
Страница 478: ...Page 7 16 12 COMBIVERT F5 A E H KEB 2012 10 CP Parameter definition...
Страница 480: ...Page 8 1 2 COMBIVERT F5 A E H KEB 2012 10 Troubleshooting 8 1 1 General 8 1 3 8 1 2 Error Messages and their Cause 8 1 3...
Страница 488: ...Page 8 1 10 COMBIVERT F5 A E H KEB 2012 10 Troubleshooting...
Страница 496: ...Page 9 1 8 COMBIVERT F5 A E H KEB 2012 10 General design...
Страница 538: ...Page 11 1 28 COMBIVERT F5 A E H KEB 2012 10 Parameter...
Страница 540: ...Page 12 1 2 COMBIVERT F5 A E H KEB 2008 02 Annex 12 1 1 Index 12 1 3...