BENSHAW Rsi S Series, Инструкция по эксплуатации

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Learning Advanced Features
132
Dwell Operation
The dwell operation is used to manitain torque during the application and release of the brakes on
lift-type loads. Inverter dwell operation is based on the Acc/Dec dwell frequency and the dwell time
set by the user. The following points also affect dwell operation:
•
Acceleration Dwell Operation: When a start command is applied, the inverter accelerates up to
the acceleration dwell frequency. It stays at dwell frequency based on the acceleration dwell
operation time (Acc Dwell Time). After the Acc Dwell Time has passed, acceleration is carried out
based on the acceleration time and the operation speed that was originally set.
•
Deceleration Dwell Operation : When a stop command is applied, the inverter decelerates
down to the deceleration dwell frequency. It stays at the dwell frequency based on the
deceleration dwell operation time (Dec Dwell Freq). After the Dec Dwell Freq time has passed,
deceleration is carried out based on the deceleration time that was originally set.
When dr.09 (Control Mode) is set to 0 (V/F), the inverter can be used for operations with dwell
frequency before opening the mechanical brake of lift-type loads, such as an elevator.
Group Code Name LCD
Display Parameter
Setting Setting Range Unit
Ad 20 Dwell frequency
during acceleration Acc Dwell
Freq 5.00 Start frequency
– Maximum
frequency Hz
21 Operation time during
acceleration Acc Dwell
Time 0.0 0.0–10.0 s
22 Dwell frequency
during deceleration Dec Dwell
Freq 5.00 Start frequency
– Maximum
frequency Hz
23 Operation time during
deceleration Dec Dwell
Time 0.0 0 .0-60.0 s
Ad.21 Ad.23
Ad.20
Ad.22
Run cmd
Operation
Frequency
Dwell acc. time Dwell dec. time
Acc. dwell frequency
Dec. dwell frequency