Table 83: Range:
Min: 0 Hz
Max: 500.0 Hz
Default value: 0 Hz
1-88 AC Brake Gain
Default value: 1.4
Parameter type: Range
2-setup: All setups
Conversion index: -1
Data type: u_int16
Change during operation: True
This parameter is used to set AC brake power capability (set ramp-down time when inertia is constant). In the condition that the DC-
link voltage is not higher than DC-link voltage warning value, the generator torque can be adjusted with this parameter.
Table 84: Range:
Min: 1.0
Max: 2.0
Default value: 1.4
4.3.10 1-9* Motor Temperature
Parameters for configuring the temperature protection features for the motor.
1-90 Motor Thermal Protection
Default value: [4] ETR trip 1
Parameter type: Option
2-setup: All setups
Conversion index: -
Data type: u_int8
Change during operation: True
Using ETR (electronic thermal relay), the motor temperature is calculated based on frequency, current, and time. Danfoss recom-
mends using the ETR function, if a thermistor is not present. The functionality is the same for asynchronous motors and PM motors.
N O T I C E
ETR calculation is based on motor data from
parameter group 1-2* Motor Data
.
Table 85: Option:
[0]
No protection
Disable temperature monitoring.
[1]
Thermistor warn-
ing
A thermistor gives a warning if the upper limit of motor temperature range is exceeded.
[2]
Thermistor trip
If the upper limit of motor temperature range is exceeded, a thermistor gives an alarm and makes the
drive trip.
[3]
ETR warning 1
If the calculated upper limit of the motor temperature range is exceeded, a warning occurs.
[4]
ETR trip 1
Start motor thermal calculation based on actual load and time as well as motor frequency only when
the motor current is above 110% of the nominal motor current.
[22] ETR Trip – Exten-
ded Detection
Start motor thermal calculation based on actual load and time as well as motor frequency when the
motor current is above 110% of the nominal motor current. Another situation is to start motor ther-
mal calculation when the motor current is less than 110% of the nominal motor current and trigger
current limit.
1-93 Thermistor Source
Default value: [0] None
Parameter type: Option
2-setup: All setups
Conversion index: -
Data type: u_int8
Change during operation: False
N O T I C E
Set the digital input to
[0] PNP - Active at 24 V
in
parameter 5-03 Digital Input 29 Mode
.
AU363928304090en-000101 / 130R0982
56 | Danfoss A/S © 2021.07
Parameters
VLT® Flow Drive FC 111
Programming Guide
