VLT
®
8000 AQUA
Programming
Description of choice:
Adjust the damping percentage until the motor
resonance has disappeared.
110 High break-away torque
(HIGH START TORQ.)
Value:
0.0 - 0.5 sec.
✭
0.0 sec.
Function:
In order to secure a high starting torque, the maximum
torque for max. 0.5 sec. is allowed. However, the
current is limited by the protection limit of the AFD.
0 sec. corresponds to no high break-away torque.
Description of choice:
Set the necessary time in which a high
starting torque is desired.
111 Start delay
(START DELAY)
Value:
0.0 - 120.0 sec.
✭
0.0 sec.
Function:
This parameter enables a delay of the starting time
after the conditions for start have been fulfilled.
When the time has passed, the output frequency
will start by ramping up to the reference.
Description of choice:
Set the desired time until acceleration is to begin.
112 Motor preheater
(MOTOR PREHEAT)
Value:
✭
Disable (DISABLE)
[0]
Enable (ENABLE)
[1]
Function:
The motor preheater ensures that no condensate
develops in the motor at stop. This function can also
be used to evaporate condensed water in the motor.
The motor preheater is only active during stop.
Description of choice:
Select
Disable
[0] if this function is not required. Select
Enable
[1] to activate motor preheating. The DC current
is set in parameter 113
Motor preheater DC current
.
113 Motor preheater DC current
(PREHEAT DC-CURR.)
Value:
0 - 100 %
✭
50 %
The maximum value depends on the rated motor
current, parameter 105
Motor current, I
M,N
.
Function:
The motor can be preheated at stop by means of a DC
current to prevent moisture from entering the motor.
Description of choice:
The motor can be preheated by means of a DC
current. At 0%, the function is inactive; at a value
higher than 0%, a DC current will be supplied to
the motor at stop (0 Hz). This function can also
be used to generate a holding torque.
If too high a DC current is supplied for too
long, the motor can be damaged.
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.80.A7.22 - VLT is a registered Danfoss trademark
97
Rosewood STP ST42 General (Operation and Maintenance Manual - Part 4:
Section 6.3 Manufacturers Manuals 6.3.33 Danfoss VLT Aquadrive 8000) Vendor Manual
QP Id: VM207
Active: 03/09/2013
Page 103 of 208
