3.2.8 1-8* Stop Adjustments
1-80 Function at Stop
Option:
Function:
Select the drive function after a stop
command or after the speed is ramped down
to the settings in par. 1-82. Function at Stop
[0]
*
Coast
Leaves motor in free mode.
[1]
DC hold /
Motor Preheat
Energizes motor with a DC holding current
(see
2-00 DC Hold/Motor Preheat Current
1-82 Min Speed for Function at Stop [Hz]
Range:
Function:
0.0 Hz
*
[0.0 - 20.0 Hz] Set the output frequency at which to
activate
.
3.2.9 1-9* Motor Temperature
1-90 Motor Thermal Protection
Option:
Function:
Using ETR (Electronic Thermal Relay) the
motor temperature is calculated based on
frequency, speed and time. Danfoss
recommends using the ETR function, if a
thermistor is not present.
NOTE
ETR calculation is based on motor data
from group 1-2*.
[0]
*
No protection Disables temperature monitoring.
[1]
Thermistor
warning
A thermistor connected to either digital or
analog input gives a warning if upper limit of
motor temperature range is exceeded, (see
[2]
Thermistor
trip
A thermistor connected to either digital or
analog input gives an alarm and makes the
frequency converter trip if upper limit of
motor temperature range is exceeded, (see
[3]
ETR warning 1 If calculated upper limit of motor
temperature range is exceeded, a warning
occurs.
[4]
ETR trip 1
If 90% of calculated upper limit of motor
temperature range is exceeded, an alarm
occurs and frequency converter trips.
1-93 Thermistor Source
Option:
Function:
Select the input which the thermistor (PTC
sensor) should be connected. When using
an analog input, the same analog can not
be used as a reference in par. 3-15 to 3-17.
[0]
*
None
[1]
Analog input
AI53
[6]
Digital input
DI29
NOTE
This parameter cannot be adjusted while the motor is
running.
NOTE
Digital input should be set to [0]
PNP - Active at 24V
in
Parameters
VLT HVAC Basic Drive Programming Guide
28
MG.18.B1.02 - VLT
®
is a registered Danfoss trademark
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