Issue 01/06 | Parameter Description |
r0204 | Power stack features |
| Min: | - |
| Datatype: U32 | Unit: - | Def: | - |
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| Max: | - |
Displays hardware features of power stack.
Bitfields: |
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Bit00 | DC input voltage | 0 | NO | 1 | YES |
Bit01 | RFI filter | 0 | NO | 1 | YES |
Level
3
Note:
Parameter r0204 = 0 indicates that no power stack has been identified.
P0205 | Inverter application |
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| Min: | 0 | |
| CStat: | C | Datatype: U16 | Unit: - | Def: | 0 |
| INVERTER | Active: first confirm | QuickComm.: Yes | Max: | 1 |
Selects inverter application.
Level
3
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:
0Constant torque
1Variable 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
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
Torque | M ~ | 1 | M = const. | M ~ f | M ~ f 2 |
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Power | P = const. | P ~ f | P ~ f 2 | P ~ f 3 | |
Characteristic |
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| P | M |
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| M | P | M | M |
| P | |||
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| P |
| f | f | f | f |
Application | Winders | Hoisting gear | Calenders with | Pumps |
| Facing lathes | Belt conveyors | viscous friction | Fans |
| Rotary cutting | Process machines | Centrifuges | |
| machines | Involving forming |
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| Rolling mills |
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| Planers |
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| Compressors |
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MICROMASTER 440 | Parameter List |
45 |