Danfoss ADAP-KOOL AKD 102 Operating Instructions Manual page 82

6 How to Programme the Frequency Converter
0-77 DST/Summertime End
Range:
0 N/A* [0 - 0 N/A]
1-00 Configuration Mode
Option:
[0] * Open loop
[3] Closed loop
This parameter can not be changed when motor is running.
6
NB!
When set for Closed Loop, the commands Reversing and Start Reversing will not reverse the direction of the motor.
1-90 Motor Thermal Protection
Option:
[0] * No protection
[1] Thermistor warning
[2] Thermistor trip
[3] ETR warning 1
[4] * ETR trip 1
[5] ETR warning 2
[6] ETR trip 2
[7] ETR warning 3
[8] ETR trip 3
[9] ETR warning 4
[10] ETR trip 4
ETR (Electronic Thermal Relay) functions 1-4 will calculate the load when set-up where they were selected is active. For example ETR-3 starts calculating
when set-up 3 is selected. For the North American market: The ETR functions provide class 20 motor overload protection in accordance with NEC.
82
Function:
Sets the date and time when summertime/DST ends. The date is programmed in the format selected
Date Format
in par.0-71 .
Function:
Motor speed is determined by applying a speed reference or by setting desired speed when in Hand
Mode.
Open Loop is also used if the frequency converter is part of a closed loop control system based on
an external PID controller providing a speed reference signal as output.
Motor Speed will be determined by a reference from the built-in PID controller varying the motor
speed as part of a closed loop control process (e.g. constant pressure or flow). The PID controller
must be configured in par. 20-**, Drive Closed Loop or via the Function Setups accessed by pressing
the [Quick Menus] button.
Function:
The frequency converter determines the motor temperature for motor protection in two different
ways:
• Via a thermistor sensor connected to one of the analog or digital inputs (par.1-93
mistor Source ).
• Via calculation (ETR = Electronic Thermal Relay) of the thermal load, based on the actual
load and time. The calculated thermal load is compared with the rated motor current
I and the rated motor frequency f
M,N
load at lower speed due to less cooling from the fan incorporated in the motor.
If the motor is continuously overloaded and no warning or trip of frequency converter is wanted.
Activates a warning when the connected thermistor in the motor reacts in the event of motor over-
temperature.
Stops (trips) the frequency converter when the connected thermistor in the motor reacts in the
event of motor over-temperature.
MG.11.O1.02 - ADAP-KOOL ® is a registered Danfoss trademark
®
ADAP-KOOL Drive AKD 102 High Power
. The calculations estimate the need for a lower
M,N
Ther-