Danfoss VLT AutomationDrive EZ FC 321 Programming Manual page 103

VLT® AutomationDrive EZ FC 321
Programming Guide
Protection mode and trip delay features (parameter 14-25 Trip Delay at Torque Limit and parameter 14-26 Trip Delay at Inverter
Fault) may delay the activation of the mechanical braking in an alarm condition. These features must be disabled in hoisting ap-
plications.
Start
1=on
term.18
0=off
Par 1-71
Start delay time
Shaft speed
Output current
Pre-magnetizing
current or
DC hold current
Par 2-23
Brake delay time
on
Relay 01
off
Mechanical brake
locked
Mechanical brake
free
Illustration 40: Mechanical Braking
Parameter 2-20 Release Brake Current
Table 162: Parameter 2-20 Release Brake Current
2-20 Release Brake Current
Default value: Size related
Conversion index: -2
Set the motor current for release of the mechanical braking when a start condition is present. The default value is the maximum
current the inverter can provide for the particular power size. The upper limit is specified in parameter 16-37 Inv. Max. Current.
When mechanical brake control output is selected, but no mechanical braking is connected, the function does not work by de-
fault setting due to too low motor current.
Parameter 2-21 Activate Brake Speed [RPM]
Table 163: Parameter 2-21 Activate Brake Speed [RPM]
2-21 Activate Brake Speed [RPM]
Default value: Size related
Conversion index: 67
Set the motor speed for activation of the mechanical braking when a stop condition is present. The upper speed limit is specified in
parameter 4-53 Warning Speed High.
Danfoss A/S © 2021.08
N O T I C E
Par 1-74
Start speed
Par 1-76 Start current/
Par 2-00 DC hold current
Reaction time EMK brake
Parameter type: Range, 10 - par. 16-37 A
Data type: Uint32
N O T I C E
Parameter type: Range, 0 - par. 4-53 RPM
Data type: Uint16
Par 2-20
Release brake current
Setup: All setups
Change during operation: True
Setup: All setups
Change during operation: True
AU373327181955en-000101 / 130R1208 | 103
Parameter Descriptions
Par 2-21
Activate brake
speed
Time