Danfoss VLT AutomationDrive FC 301 Programming Manual page 235

Parameter Descriptions
14-11 Mains Fault Voltage Level
Range: Function:
NOTICE
Converting from VLT 5000 to
FC 300:
Even though the setting of the
mains voltage at mains fault is
the same for VLT 5000 and FC
300, the detection level is
different. Use the following
formula to obtain the same
detection level as in VLT 5000:
Parameter 14-11 Mains Fault
Voltage Level (VLT 5000 level)
= value used in VLT 5000
x1.35/sqrt(2).
14-12 Response to Mains Imbalance
Operation under severe main imbalance conditions reduces the
lifetime of the motor. Conditions are considered severe if the
motor is operated continuously near nominal load (for example,
a pump or a fan running near full speed).
Option: Function:
[0] Trip Trips the frequency converter.
*
[1] Warning Issues a warning.
[2] Disabled No action.
[3] Derate
14-14 Kin. Back-up Time-out
Range: Function:
60 s [0 - 60 s] This parameter defines the kinetic
*
back-up timeout in flux mode when
running on low voltage grids. If the
supply voltage does not exceed the
value defined in
parameter 14-11 Mains Fault Voltage
Level +5% within the specified time,
the frequency converter then
automatically runs a controlled
ramp-down profile before stop.
14-15 Kin. Back-up Trip Recovery Level
Range: Function:
Size [ 0 - This parameter specifies the kinetic
related 60000.000 back-up trip recovery level. The unit
*
Reference- is defined in parameter 0-02 Motor
FeedbackUnit] Speed Unit.
14-16 Kin. Back-up Gain
Range: Function:
100 % [0 - 500 %] Enter the kinetic back-up gain value
*
in percent.
M0013101
Programming Guide
3.14.2 14-2* Trip Reset
Parameters for configuring auto reset handling, special trip
handling, and control card self-test or initialization.
14-20 Reset Mode
Option:
[0]
*
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
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Function:
Select the reset function after
tripping. Once reset, the frequency
converter can be restarted.
NOTICE
The motor may start without
warning. If the specified
number of automatic resets is
reached within 10 minutes, the
frequency converter enters [0]
Manual reset mode. After the
manual reset is performed, the
setting of
parameter 14-20 Reset Mode
returns to the original
selection. If the number of
automatic resets are not
reached within 10 minutes, or
when a manual reset is
performed, the internal
automatic reset counter
returns to 0.
NOTICE
Automatic reset is also valid
for resetting the Safe Torque
Off function in firmware
version 4.3x or earlier.
Manual reset Select [0] Manual reset to perform a
reset via [Reset] or via the digital
inputs.
Automatic Select [1]-[12] Automatic reset x 1...
reset x 1 x20 to perform 1–20 automatic
resets after tripping.
Automatic
reset x 2
Automatic
reset x 3
Automatic
reset x 4
Automatic
reset x 5
Automatic
reset x 6
Automatic
reset x 7
Automatic
reset x 8
3 3
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