Fantech VLT 2800 Series Instruction Manual page 45

122 Function at stop
(FUNCTION AT STOP)
Value:
Coasting (COAST)
DC hold (DC HOLD)
Function:
This is where to choose the function of the variable
frequency drive after the output frequency has become
lower than the value in parameter 123 The min.
frequency for activation of function at stop or after
a stop command and when the output frequency
has been ramped down to 0 Hz.
Description of choice:
Select Coasting [0] if the variable frequency drive is
to 'let go' of the motor (inverter turned off).
Select DC hold [1] if parameter 137 DC hold
voltage is to be activated.
123 Min. frequency for activation of
function at stop
(MIN.F.FUNC.STOP)
Value:
0,1 - 10 Hz
Function:
In this parameter, the output frequency is set at
which the function selected in parameter 122
Function at stop is to be activated.
Description of choice:
Set the required output frequency.
NOTE
If parameter 123 is set higher than parameter
130, then the start delay function (parameter
120 and 121) will be skipped.
NOTE
If parameter 123 is set too high, and DC
hold has been chosen in parameter 122,
the output frequency will jump to the value
in parameter 123 without ramping up. This may
cause an overcurrent warning / alarm.
= factory setting. () = display text [] = value for use in communication via serial communication port
44
VLT® 2800 Series
126 DC brake time
(DC BRAKING TIME)
Value:
0 - 60 sec.
[0]
[1]
Function:
In this parameter, the DC brake time is set at which
parameter 132 DC brake voltage is to be active.
Description of choice:
Set the required time.
127 DC brake cut-in frequency
(DC BRAKE CUT-IN)
Value:
0.0 (OFF) - par. 202
Output frequency high limit, f
Function:
In this parameter, the DC brake cut-in frequency
is set at which the DC brake is to be activated in
connection with a stop command.
Description of choice:
Set the required frequency.
0,1 Hz
128 Thermal motor protection
(MOT.THERM PROTEC)
Value:
No protection (NO PROTECTION)
Thermistor warning
(THERMISTOR WARN)
Thermistor trip (THERMISTOR TRIP)
ETR warning 1 (ETR WARNING 1)
ETR trip 1 (ETR TRIP 1)
ETR warning 2 (ETR WARNING 2)
ETR trip 2 (ETR TRIP 2)
ETR warning 3 (ETR WARNING 3)
ETR trip 3 (ETR TRIP 3)
ETR warning 4 (ETR WARNING 4)
ETR trip 4 (ETR TRIP 4)
Function:
The adjustable frequency drive can monitor the
motor temperature in two different ways:
- Via a PTC thermistor that is mounted on the motor.
The thermistor is connected between terminal 50
MG.28.A8.22 - VLT is a registered Danfoss trademark
10 sec
OFF
MAX
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]