Danfoss VLT HVAC Basic Drive FC 101 Programming Guide

1-82 Min Speed for Function at Stop [Hz]
Range: Function:
0 Hz* [0 - 20 Hz] Set the output frequency at which to
activate parameter 1-80 Function at Stop.
1-88 AC Brake Gain
Range: Function:
1.4* [1.0 -
2.0 ]
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.
3.2.11 1-9* Motor Temperature
Parameters for conguring the temperature protection
features for the motor.
1-90 Motor Thermal Protection
Option: Function:
Using ETR (electronic thermal relay), the
motor temperature is calculated based on
frequency, current, and time. Danfoss
recommends using the ETR function, if a
thermistor is not present. The functionality is
the same for asynchronous motors and PM
motors.
NOTICE
ETR calculation is based on motor
data from parameter group 1-2* Motor
Data.
[0] No
protection
Disables temperature monitoring.
[1] Thermistor
warning
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 frequency converter
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 -
Extended
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
1-90 Motor Thermal Protection
Option: Function:
situation is to start motor thermal
calculation when the motor current is less
than 110% of the nominal motor current
and trigger current limit.
1-93 Thermistor Source
Option: Function:
NOTICE
This parameter cannot be adjusted while
the motor is running.
NOTICE
Set the digital input to [0] PNP - Active at
24 V in parameter 5-03 Digital Input 29
Mode.
Select the input at which the thermistor (PTC
sensor) should be connected. When using an
analog input, the same analog cannot be used
as a reference in parameter 3-15 Reference
Resource 1 to parameter 3-17 Reference Resource 3,
parameter 20-00 Feedback 1 Source,
parameter 20-03 Feedback 2 Source,
parameter 24-06 Fire Mode Reference Source, and
parameter 24-07 Fire Mode Feedback Source.
[0]
*
None Do not set thermistor source.
[1] Analog
input
AI53
Use analog input 53 as thermistor source.
[6] Digital
input 29
Use digital input 29 as thermistor source.
Parameters
VLT
®
HVAC Basic Drive FC 101
38 Danfoss A/S © 04/2018 All rights reserved. MG18B502
33

Danfoss VLT HVAC Basic Drive FC 101 Specifications

General

Brand	Danfoss
Model	VLT HVAC Basic Drive FC 101
Category	DC Drives
Language	English