6-30
Programming Your Application
605C Frequency Inverter
FLYCATCHING
This block performs a directional speed
search. It allows the Inverter to seamlessly
catch a spinning motor before controlling
the motor to the desired setpoint.
This is especially useful for large inertia
fan loads, where drafts in building air
ducts can cause a fan to `windmill’.
MMI Menu Map
1
SETUP PARAMETERS
2
FUNCTION BLOCKS
3
MOTOR CONTROL
4
FLY CATCHING
FLY CATCH ENABLE
FLY START MODE
FLY SEARCH MODE
FLY SEARCH VOLTS
FLY SEARCH BOOST
FLY SEARCH TIME
FLY MIN SPEED
FLY REFLUX TIME
FLY CATCH ACTIVE
FLY SETPOINT
FLYCATCHING
ACTIVE
[576]
–
FALSE
SETPOINT
[ 28]
–
0.00 %
FALSE
–
[570] ENABLE
–
ALWAYS
–
[571] START MODE
–
BIDIRECTIONAL
–
[572] SEARCH MODE
–
** 9.00 %
–
[573] SEARCH VOLTS
–
** 40.00 %
–
[ 32] SEARCH BOOST
–
** 10.0 s
–
[574] SEARCH TIME
–
5.0 Hz
–
[575] MIN SEARCH SPEED
–
3.0 s
–
[709] REFLUX TIME
–
Parameter Descriptions
ENABLE
Range: FALSE / TRUE
Enables flycatching when TRUE.
START MODE
Range: Enumerated - see below
The mode of operation for the flycatching sequence software.
Enumerated Value
:
Start Mode
0 : ALWAYS
1 : TRIP OR POWERUP
2 : TRIP
SEARCH MODE
Range: Enumerated - see below
The type of speed search carried out by the flycatching sequence.
Enumerated Value
:
Search Mode
0 : BIDIRECTIONAL
1 : UNIDIRECTIONAL
SEARCH VOLTS
Range: 0.00 to 100.00 %
The percentage level of the search volts applied to the motor during the speed search phase of
the flycatching sequence. Increasing this parameter improves the accuracy of the discovered
motor speed but increases the braking influence of the speed search on the rotating motor.
SEARCH BOOST
Range: 0.00 to 100.00 %
The level of search boost applied to the motor during the speed search phase of the flycatching
sequence.
SEARCH TIME
Range: 0.1 to 60.0 s
The search rate during the speed search phase of the flycatching sequence. Performing the
flycatching speed search too quickly can cause the drive to inaccurately identify the motor
speed. Refluxing at an inaccurate motor speed can cause the drive to trip on overvoltage. If
this occurs, increasing this parameter will reduce the risk of tripping.
MIN SEARCH SPEED
Range: 5.0 to 480.0 Hz
The lowest search speed before the speed search phase of the flycatching sequence is
considered to have failed.
REFLUX TIME
Range: 0.1 to 20.0 s
The rate of rise of volts from the search level to the working level after a successful speed
search. Refluxing the motor too quickly can cause the drive to trip on either overvoltage or
overcurrent. In either case, increasing this parameter will reduce the risk of tripping.
Содержание 605C
Страница 16: ...1 4 Getting Started 605C Frequency Inverter ...
Страница 22: ...2 6 An Overview of the Inverter 605C Frequency Inverter ...
Страница 50: ...4 14 Operating the Inverter 605C Frequency Inverter ...
Страница 66: ...5 16 The Operator Station 605C Frequency Inverter ...
Страница 156: ...8 2 Routine Maintenance and Repair 605C Frequency Inverter ...
Страница 184: ...10 22 Parameter Specification 605C Frequency Inverter ...
Страница 212: ...13 6 Application Notes 605C Frequency Inverter ...
Страница 214: ...14 2 Serial Communications 605C Frequency Inverter ...
Страница 236: ......