Danfoss VLT Flow Drive FC 111 Programming Manual page 56

VLT® Flow Drive FC 111
Programming Guide
Table 83: Range:
Min: 0 Hz
1-88 AC Brake Gain
Default value: 1.4
Conversion index: -1
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
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
Conversion index: -
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.
ETR calculation is based on motor data from parameter group 1-2* Motor Data.
Table 85: Option:
[0] No protection
[1] Thermistor warn-
ing
[2] Thermistor trip
[3] ETR warning 1
[4] ETR trip 1
[22] ETR Trip – Exten-
ded Detection
1-93 Thermistor Source
Default value: [0] None
Conversion index: -
Set the digital input to [0] PNP - Active at 24 V in parameter 5-03 Digital Input 29 Mode.
56 | Danfoss A/S © 2021.07
Max: 500.0 Hz
Parameter type: Range
Data type: u_int16
Max: 2.0
Parameter type: Option
Data type: u_int8
N O T I C E
Disable temperature monitoring.
A thermistor gives a warning if the upper limit of motor temperature range is exceeded.
If the upper limit of motor temperature range is exceeded, a thermistor gives an alarm and makes the
drive trip.
If the calculated upper limit of the motor temperature range is exceeded, a warning occurs.
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.
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.
Parameter type: Option
Data type: u_int8
N O T I C E
Default value: 0 Hz
2-setup: All setups
Change during operation: True
Default value: 1.4
2-setup: All setups
Change during operation: True
2-setup: All setups
Change during operation: False
AU363928304090en-000101 / 130R0982
Parameters