Learning Advanced Features
5.6 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 an operation command runs, acceleration
continues until the acceleration dwell frequency and constant speed is reached within
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 run, deceleration continues
until the deceleration dwell frequency and constant speed is reached within the
deceleration dwell operation time (Dec Dwell Freq). After the set time has passed,
deceleration is carried out based on the deceleration time that was originally set, then
the operation stops.
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.
Dwell frequency during
acceleration
Operation time during
acceleration
Dwell frequency during
deceleration
Operation time during
deceleration
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