VD500 Series Inverter User Manual Parameter Description
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This set of parameters are used to realize the dormancy and wakeup function in water supply
applications.
In the running process of frequency converter, when setting frequency less than or equal to Fb-44
dormancy frequency, after Fb-45 delay time, frequency converter to enter a dormant state, and
automatically stop.
If the frequency converter in a dormant state, and the current running command is valid, then when
setting frequency greater than or equal to Fb-42 wakeup frequency, and the frequency converter
starts up after Fb-43 delay time.
In general, please set the wakeup frequency greater than or equal to dormancy frequency. Set the
wakeup frequency and dormancy frequency is 0.00Hz, then dormancy and wakeup function is invalid.
In dormancy function is enabled, if frequency source use PID, the dormant state PID whether the
arithmetic, influenced by function code FA-29, must be selected PID stop operation (FA-29=1) at this
time.
Fb-48
Timing Brake Frequency
0.00Hz~50.00Hz
1.50Hz
○
Fb-49
Timing Brake Time
0.0s~60.0s
2.0s
○
In the process of stop, when the output frequency is less than the value of Fb-48, DO function 41
(timing brake) closed after output the set time of Fb-49. As shown in the figure below.
Output
current
Timing braking
frequency
DO timing
braking
output Fb-48
Timing braking time Fb-49
Time(t)
Time(t)
Fig 6-29 Schematic diagram of timing braking action
Fb-50
Terminal Jog Priority
0: Disabled
1: Enabled
1
○
This parameter is used to set whether the highest priority of terminal jog function.
When the terminal jog priority is valid, if terminal jog command appeared in the process of running,
the inverter switch to a terminal jog running state.
Fb-51
Swing Frequency Setting
Method
0: Relative to center frequency
1: Relative to max frequency
0
○
Through this parameter to determine the benchmark of the swing.
0: Relative center frequency (F0-05 frequency source), for variable amplitude system. The amplitude
of the swing is varied with the change of the central frequency (setting frequency).
