Delta Electronics VFD037CH23A-21 — гибкие настройки функций крана для повышения эффективности [618/638]

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19-1

Chapter 19 Application of CH2000

Crane Application

More flexible settings of crane function are added to CH2000. One of the features is that

the checking conditions of mechanical brake can be set independently (by checking

frequency or current) or relatively (by checking frequency and current). In addition, the

open and close of mechanical brake also can be set independently, which means there can

be one set of checking conditions for mechanical brake open and one set for mechanical

brake close. These two sets can be different.

Crane function

Multi-functional output (MO= 42)

Crane function combines multi-function output and time sequence setting. This function

works through checking frequency and current to trigger mechanical brake. The output

torque and mechanical braking torque can be switched smoothly via brake delay time to

reduce the instability in the operation which can increase the efficiency and ensure the

safety for crane hoist system

Pr. Explanation Settings Factory settings

02-32 Brake Delay Time 0.000~65.000

sec.

0.000

02-33

Output Current Level Setting

for Multi-function External

Terminals

0~100% 0

02-34

Output frequency setting

for multi-function output

terminal

0.00~±60.00HZ 0.00

02-57

Multi-function output terminal:

Function 42: Brake Current

Checking Point

0~100% 0

02-58 Multi-function output terminal:

Function 42: Brake Frequency

Checking Point

0.00~±60.00HZ 0.00