[0] *
None
[1]
Analog input 53
[2]
Analog input 54
[3]
Digital input 18
[4]
Digital input 19
[5]
Digital input 32
[6]
Digital input 33
NOTE!
This parameter cannot be adjusted while the motor is running.
NOTE!
Digital input should be set to [0]
PNP - Active at 24V
in parameter 5-00.
2-00 DC Hold/Preheat Current
Range:
Function:
50 %*
[Application dependant]
Enter a value for holding current as a percentage of the rated motor current I
M,N
set in
. 100% DC holding current corresponds to I
M,N
.
This parameter holds the motor (holding torque) or pre-heats the motor.
This parameter is active if [1] DC hold/Preheat is selected in par. 1-80
NOTE!
The maximum value depends on the rated motor current.
NOTE!
Avoid 100% current for too long. It may damage the motor.
2-10 Brake Function
Option:
Function:
[0] *
Off
No brake resistor installed.
[1]
Resistor brake
Brake resistor incorporated in the system, for dissipation of surplus braking energy as heat. Con-
necting a brake resistor allows a higher DC link voltage during braking (generating operation). The
resistor brake function is only active in adjustable frequency drives with an integral dynamic brake.
[2]
AC brake
AC Brake will only work in Compressor Torque mode in par. 1-03
2-16 AC Brake Max. Current
Range:
Function:
100.0 %* [Application dependant]
Enter the maximum permissible current when using AC brake to avoid overheating motor windings.
The AC brake function is available in flux mode only (FC 302 only).
VLT
®
HVAC Drive Instruction Manual
7 How to Program the Adjustable Frequency
Drive
MG.11.AB.22 - VLT
®
is a registered Danfoss trademark
7-19
7
