Siemens 440 - Manual (Page 45)

Issue 01/06 Parameter Description
MICROMASTER 440 Parameter List
6SE6400-5BB00-0BP0
45
r0204 Power stack features Min: -
Datatype: U32 Unit: - Def: -
P-Group: INVERTER Max: -
Displays hardware features of power stack.
Bitfields:
Bit00 DC input voltage 0 NO 1 YES
Bit01 RFI filter 0 NO 1 YES
Note:
Parameter r0204 = 0 indicates that no power stack has been identified.
P0205 Inverter application Min: 0
CStat: C Datatype: U16 Unit: - Def: 0
P-Group: INVERTER Active: first confirm QuickComm.: Yes Max: 1
Selects inverter application.
The inverter and motor requirements are determined by the speed range and torque requirements of the
load. The relationship between speed and torque for different loads (constant torque loads or variable
torque loads).
Possible Settings:
0 Constant torque
1 Variable torque
Note:
Constant torque (CT):
CT is used if the application needs a constant torque on the whole frequency range. Many loads can be
considered to be constant torque loads. Typical constant torque loads are conveyors, compressors and
positve displacement pumps (see diagram).
Variable torque (VT):
VT is used if the application has a parabolic frequency-torque characteristic like many fans and pumps.
Variable torque allows with the same inverter:
-
Higher rated inverter current r0207
- Higher rated inverter power r0206
- Higher threshold for I2t protection
If P0205 is modified in quick commissioning it immediately calculates various motor parameters:
-
P0305 Rated motor current
- P0307 Rated motor power
- P0640 Motor overload factor
Winders
Facing lathes
Rotary cutting
machines
M = const.
f
1
~ M f ~ M M ~ f 2
P = const. P ~ f P ~ f 2 P ~ f 3
P
M
f
M
P
f
M
P
f
M
P
f
Hoisting gear
Belt conveyors
Process machines
Involving forming
Rolling mills
Planers
Compressors
Calenders with
viscous friction
Eddy-current brakes Pumps
Fans
Centrifuges Application
Characteristic
Power
Torque
Level
3
Level
3