Siemens MICROMASTER 440 - Max. Frequency

Parameter Description Issue 01/06
MICROMASTER 440 Parameter List
128 6SE6400-5BB00-0BP0
P1082[3] Max. frequency Min: 0.00
CStat: CT Datatype: Float Unit: Hz Def: 50.00
P-Group: SETPOINT Active: first confirm QuickComm.: Yes Max: 650.00
Sets maximum motor frequency [Hz] at which motor will run irrespective of the frequency setpoint. The
value set here is valid for both clockwise and anticlockwise rotation.
Futhermore, the monitoring function |f_act| >= P1082 (r0052 Bit10, see example below) is affected by this
parameter.
Index:
P1082[0] : 1st. Drive data set (DDS)
P1082[1] : 2nd. Drive data set (DDS)
P1082[2] : 3rd. Drive data set (DDS)
Example:
0 t
1
t
f_act
r0052
Bit 10
|f_act| ≥ P1082 (f_max)
P1082
P1082 - P2162
Dependency:
The maximal value of motor frequency P1082 is limited to pulse frequency P1800. P1082 is dependent on
the derating characteristic as followed:
2 kHz
0 - 133.3 Hz
f
max
P1082
4 kHz
0 - 266.6 Hz
6 kHz
0 - 400 Hz
8 - 16 kHz
0 - 650 Hz
P1800
If closed-loop vector control (P1300 > 19) is selected, then the maximum frequency is internally limited by
the following equation:
200.00) P0310, 5 min(P1082, =
f
max
⋅
The resultant value is displayed in r1084 (resultant maximum frequency).
The maximum output frequency of inverter can be exceeded if one of the following is active:
(Flying restart active) :
(Slip compensation active ) :
p0310
100
r0330
100
p1336
p1082 ff(p1335)f max,slipmaxmax ⋅⋅+=+=
- p1335 ≠ 0
- p1200 ≠ 0
p0310
100
r0330
2p1082 f2f(p1200)f
nom,slipmaxmax ⋅⋅+=⋅+=
Note:
When using the setpoint source
- Analog Input
- USS
- CB (e.g. PROFIBUS)
The setpoint frequency (in Hz) is cyclically calculated using a percentage value (e.g. for the analog input
r0754) or a hexadecimal value (e.g. for the USS r2018[1]) and the reference frequency P2000.
If for example P1082 = 80 Hz, P2000 = 50 Hz and the analog input is parameterised with P0757 = 0 V,
P0758 = 0 %, P0759 = 10 V, P0760 = 100 %, a setpoint frequency of 50 Hz will be applied at 10 V of the
analog input.
Level
1
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