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Start
term.18
1=on
0=off
Shaft speed
Start delay time
on
off
Brake delay time
Time
Output current
Relay 01
Pre-magnetizing
current or
DC hold current
Reaction time EMK brake
Par 2-20
Release brake current
Par 1-76 Start current/
Par 2-00 DC hold current
Par 1-74
Start speed
Par 2-21
Activate brake
speed
Mechanical brake
locked
Mechanical brake
free
Par 1-71
Par 2-23
130BA074.12
Illustration 3.19 Mechanical Brake
2-20 Release Brake Current
Range:
Function:
Size
related
*
[ 0.00 -
par. 16-37
A]
Set the motor current for release of the
mechanical brake, 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
.
NOTE
When Mechanical brake control
output is selected but no mechanical
brake is connected, the function will
not work by default setting due to
too low motor current.
2-21 Activate Brake Speed [RPM]
Range:
Function:
Size related
*
[0 - 30000
RPM]
Set the motor speed for activation
of the mechanical brake, when a
stop condition is present. The upper
speed limit is specified in
.
2-22 Activate Brake Speed [Hz]
Range:
Function:
Size related
*
[ 0.0 - 5000.0
Hz]
Set the motor frequency for
activation of the mechanical
2-22 Activate Brake Speed [Hz]
Range:
Function:
brake, when a stop condition is
present.
2-23 Activate Brake Delay
Range:
Function:
0.0 s
*
[0.0 -
5.0 s]
Enter the brake delay time of the coast after
ramp-down time. The shaft is held at zero
speed with full holding torque. Ensure that the
mechanical brake has locked the load before
the motor enters coast mode. See
Mechanical
Brake Control
section in the Design Guide.
2-24 Stop Delay
Range:
Function:
0.0 s
*
[0.0 - 5.0 s] Set the time interval from the moment
when the motor is stopped until the brake
closes. This parameter is a part of the
stopping function.
2-25 Brake Release Time
Range:
Function:
0.20 s
*
[0.00 - 5.00
s]
This value defines the time it takes for
the mechanical brake to open. This
parameter must act as a time-out when
brake feedback is activated.
Parameter Descriptions
VLT
®
AutomationDrive Programmming Guide
54
MG33ME02 - VLT
®
is a registered Danfoss trademark
3
3
Содержание VLT AutomationDrive FC 300 Series
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