Danfoss VLT HVAC Drive FC 102, Руководство по программированию, Страница: 121 / 250

Mains
Time
DC Voltage
Output Speed rpm
Over Voltage Control Level
130B
T108.10
Par 14-11
Illustration 3.38 Controlled Ramp Down, Longer Mains Failure.
Over Voltage Control Level
DC Voltage
Output Speed rpm
Mains
Time
130B
T100.10
Par 14-11
Illustration 3.39 Kinetic Back-up, Short Mains Failure.
Mains
Time
DC Voltage
Output Speed rpm
Over Voltage Control Level
130B
T109.10
Par 14-11
Illustration 3.40 Kinetic Back-Up, Longer Mains Failure.
14-11 Mains Voltage at Mains Fault
Range: Function:
Size
related
*
[180 -
600 V] This parameter defines the threshold
voltage at which the selected function in
parameter 14-10 Mains Failure should be
activated. The detection level is at a
factor sqrt(2) of the value in this
parameter.
14-12 Function at Mains Imbalance
Option: Function:
Operation under severe mains 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 fan running near full speed).
When a severe mains imbalance is detected,
select 1 of the available functions.
[0]
*
Trip Trips the frequency converter.
[1] Warning Issues a warning.
[2] Disabled No action.
[3] Derate Derates the frequency converter.
3.14.3 14-2* Trip Reset
Parameters for configuring auto reset handling, special trip
handling, and control card self-test or initialisation.
14-20 Reset Mode
Option: Function:
NOTICE
Automatic reset is also active for
resetting the Safe Torque Off
function.
NOTICE
The setting in
parameter 14-20 Reset Mode is
disregarded if Fire Mode being
active (see parameter group
24-0* Fire Mode).
Select the reset function after tripping.
Once reset, the frequency converter
can be restarted.
[0] Manual reset
Select
[0] Manual reset
, to perform a
reset via [RESET] or via the digital
inputs.
[1] Automatic reset x 1 Select [1]-[12] Automatic reset x 1…x20
to perform between 1 and 20
automatic resets after tripping.
[2] Automatic reset x 2
[3] Automatic reset x 3
[4] Automatic reset x 4
[5] Automatic reset x 5
[6] Automatic reset x 6
[7] Automatic reset x 7
[8] Automatic reset x 8
[9] Automatic reset x 9
[10] Automatic reset x
10
[11] Automatic reset x
15
[12] Automatic reset x
20
[13] Infinite auto reset Select [13] Infinite Automatic Reset for
continuous resetting after tripping.
14-21 Automatic Restart Time
Range: Function:
10 s
*
[0 - 600
s] Enter the time interval from trip to start of the
automatic reset function. This parameter is
active when
parameter 14-20 Reset Mode is set
to [1]–[13] Automatic reset .
Parameter Descriptions Programming Guide
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