Delta Electronics VFD037CH23A-21 — управление механическим тормозом: открытие и закрытие [619/638]

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Example:

Mechanical Brake Open

 When output frequency is greater than and equal to 02-34, and output current is

greater than and equal to 02-33. 02-32 (Brake delay time) will be triggered.

 When output frequency attains to 07-16, it will remain at the value of 07-16 until the

time set in 07-15. In this sequence of time mechanical brake open from closing, but the

mechanical brake will not wear because the output frequency maintains in the same

level.

 After 07-15, motor drive starts to accelerate to command frequency.

Mechanical Brake Close

 When output frequency is less than 02-58, or output current is less than 02-57 (one of

the conditions is checked). 02-32 (Brake delay time) will start to count.

 When output frequency attains down to 07-18, it will remain at the value of 07-18 until

the time set in 07-17. In this sequence of time mechanical brake close from opening,

and the slipping can be avoided because the output frequency maintains in the same

level.

 After 07-15, motor drive starts to decelerate to stop.

 If only frequency checking would be use, please set 1% at 02-57.

 If 02-57 is set at 0, then the mechanical brake close checking conditions will depend on

02-33 and 02-58.