Siemens simovert masterdrives - Page 1206

Parameter
Description Data Read/write
P290*
Sel V/f, I-Reg
290
Function parameter for selecting the active type of current
control.
0 = Vectorial current control
1 = V/f characteristic
The respective non-activated control mode is not
calculated by the firmware.
The control mode "V/f characteristic" is NOT designed to
be used with brushless DC motors (1FT6 / 1FK6)!
In the case of current-controlled operation (P290=0)
automatic motor identification should always be carrried
out upon start-up.
Please keep in mind that in the case of operation with v/f
characteristic (P290=1) without an encoder, P799 (Source
OFF actual value) must be set to 200 for the correct
function of the OFF1 command. In order to avoid the
alarm "Target - Actual Deviation", P791 (Source actual
value) should also be set to 200. If further signals the
signals given in function diagram 480 are used, the actual
value source must be adjusted.
Init: 0
Min: 0
Max: 1
Unit: -
Indices: -
Type: O2
Menus:
- Parameter menu
+ Control/gating unit
+ Current control
+ V/f open-loop control
- Drive setting
- Upread/free access
Changeable in:
- Drive setting
P291*
FSetp Flux (set)
291
Function parameter for entering the fixed setpoint for the
flux of the connected induction motor. The parameter
value entered relates to the rated flux of the
parameterized motor.
Init: 100,0
Min: 20,0
Max: 200,0
Unit: %
Indices: -
Type: O2
Menus:
- Parameter menu
+ Control/gating unit
+ Current control
- Upread/free access
Changeable in:
- Ready to switch on
- Operation enabled
P292*
S.Flux (set)
292
BICO parameter for selecting the connector from which
the flux setpoint for the connected induction motor is to be
read in.
Init: 180
Unit: -
Indices: -
Type: L2 ,K
Menus:
- Parameter menu
+ Control/gating unit
+ Current control
- Upread/free access
Changeable in:
- Ready to switch on
- Operation enabled
P293*
FieldWKFreq
293
Function parameter for entering the field weakening
frequency. From the set parameter value upwards, a
connected induction motor with a weakened field is to be
operated. Depending on the actual voltage conditions, the
field weakening frequency actually produced can be lower.
The parameter value is automatically calculated optimally
during automatic calculation of the derived motor data
(P115).
When the flux is increased or reduced (with P292 Src
Psi(set)) the actual frequency at which field weakening
starts remains at the value set by P293. If the frequency
at which field weakening starts is to be adjusted
accordingly via P292 Src Psi(set) when the flux is
increased or reduced, this can be effected "manually" via
P293 e.g. as follows:
P293 = P293old (at 100% flux setpoint) x (100/Psi(set) [%]
)
Init: 0,0
Min: 0,0
Max: 400,0
Unit: Hz
Indices: -
Type: O2
Menus:
- Parameter menu
+ Control/gating unit
+ Current control
- Drive setting
- Upread/free access
Changeable in:
- Drive setting
46
Siemens AG 6SE7087-6QX70 (Edition AL)
SIMOVERT MASTERDRIVES Compendium Motion Control