Parameter
Description
Data
Read/write
P072*
Rtd Drive Amps
72
Compact PLUS only
Parameter for displaying the rated current of the converter
or inverter. The rated current is the current which can be
output continuously. It must be identical with the
information on the rating plate.
Init: 6,1
Min: 0,0
Max: 6450,0
Unit: A
Indices: -
Type: O2
Menus:
- Parameter menu
+ General parameters
- Upread/free access
- Power section definition
Changeable in:
- Power section definition
P073*
Rtd Drive Power
73
Parameter for displaying the rated power output of the
converter or inverter.
Please note that the specified rated power is valid for a
pulse frequency of 3 kHz (2.5kHz). Thus the actual rated
power is usually below this value in the case of
MASTERDRIVES MC (minimum pulse frequency 5kHz).
See also parameter P072.
Init: 2,2
Min: 0,3
Max: 6400,0
Unit: kW
Indices: -
Type: O2
Menus:
- Parameter menu
+ General parameters
- Upread/free access
- Power section definition
Changeable in:
- Power section definition
P074*
ChopperThreshold
74
Compact PLUS only
Function parameter for input of the braking chopper
starting threshold. Effective only in the case of Compact
PLUS converters (AC/AC).
A minimum value is set for P74 depending on P71
Conv.SupplyV.
Warning: P74 must never be set lower than the peak
rectifier value at maximum line voltage. Otherwise the
braking chopper remains continuously on, which can lead
to overheating of the braking resistor.
In function diagram 490.4
Init: 750
Min: 590
Max: 750
Unit: V
Indices: -
Type: O2
Menus:
- Parameter menu
+ General parameters
- Drive setting
- Upread/free access
- Power section definition
Changeable in:
- Power section definition
- Drive setting
- Ready to switch on
r088
kT Rated Value
88
Torque constant kT0 = kT_rated value + correction by the
observer.
This measured value can be entered in P98 as kT0_rated
value to improve torque accuracy even with the observer
deactivated.
Dec.Plc.: 2
Unit: Nm/A
Indices: -
Type: O2
Menus:
- Parameter menu
- Upread/free access
r089
kT Actual Value
89
Actual value of the torque constant n which is currently
being taken into account.
This value takes account of the current motor temperature.
Dec.Plc.: 2
Unit: Nm/A
Indices: -
Type: O2
Menus:
- Parameter menu
- Upread/free access
P090
kT Dependance
90
Index 01: not used
Index 02:
Temperature dependence of the magnetic material. The
adaption functions only when the actual motor
temperature is measured with a temperature sensor. The
factory setting of 12%/100K is a usual value for neodym-
iron-boron magnets.
P90.02
kT = r088 * (1- -------------* (T-140°C))
100 K
index1: 0,0
Min: 0,0
Max: 20,0
Unit: %
Indices: 2
Type: O2
Menus:
- Parameter menu
+ Control/gating unit
+ Current control
- Drive setting
- Upread/free access
Changeable in:
- Drive setting
P091
kT Adaption
91
kT adaption
Index 1: Application threshold from which adaption is
active as a percentage of the rated speed (P108)
Index 2: Maximum deviation of the adapted kT value of
the rated value (P98). The estimator is switched off at 0%.
The maximum value amounts to 30%.
index1: 20,0
Min: 0,0
Max: 100,0
Unit: %
Indices: 2
Type: O2
Menus:
- Parameter menu
- Drive setting
- Upread/free access
Changeable in:
- Drive setting
10
Siemens AG 6SE7087-6QX70 (Edition AL)
SIMOVERT MASTERDRIVES Compendium Motion Control