3
−
72
Stop Mode / Restart Mode Configuration:
B091
/
B088
–
You can configure how the
inverter performs a standard stop (each time Run FWD and REV signals turn OFF).
Setting
B091
determines whether the inverter will control the deceleration, or whether
it will perform a free-run stop (coast to a stop). When using the free-run stop selection,
it is imperative to also configure how you want the inverter to resume control of motor
speed. Setting
B088
determines whether the inverter will ensure the motor always
resumes at 0 Hz, or whether the motor resumes from its current coasting speed (also
called
active frequency matching
). The run command may turn OFF briefly, allowing
the motor to coast to a slower speed from which normal operation can resume.
In most applications a controlled deceleration is desirable, corresponding to
B091
=
00
.
However, applications such as HVAC fan control will often use a free-run stop (
B091
=
01
).
This practice decreases dynamic stress on system components, prolonging system life.
In this case, you will typically set
B088
=
01
in order to resume from the current speed
after a free-run stop (see diagram down below: active frequency matching resume). Note
that using the default setting,
B088
=
00
, can cause trip events when the inverter
attempts to force the load quickly to zero speed.
NOTE: Other events can cause (or be configured to cause) a free-run stop, such as power
loss (see “Automatic Restart Mode” on page 3-32), or an intelligent input terminal [FRS]
signal. If all free-run stop behavior is important to your application (such as HVAC), be
sure to configure each event accordingly.
Содержание WJ200 Series Software
Страница 19: ...xviii Revisions Revision History Table No Revision Comments Date of Issue Operation Manual No ...
Страница 59: ...2 14 Dimensional drawings continued Power Type W mm H mm D mm D1 mm 3 phase 200V WJ200 150LF 220 350 175 84 ...
Страница 295: ...4 92 Safe Stop Function To be finalized after TUV approval ...
Страница 296: ...5 1 5 Inverter System Accessories In This Chapter page Introduction 2 Component Description 3 ...
Страница 322: ...A 1 A Glossary and Bibliography In This Appendix page Glossary 2 Bibliography 8 ...
Страница 378: ...B 49 Note 2 Be sure not to write into above 1F02h to 1F1Dh ...
Страница 382: ...C 1 Drive Parameter Setting Tables In This Appendix page Introduction 2 Parameter Settings for Keypad Entry 2 C ...