14-04 PWM Random
Option: Function:
[0] * Off No change of the acoustic motor switching noise.
[1] On Transforms the acoustic motor switching noise from a clear ringing tone to a less noticeable ‘white’
noise. This is achieved by slightly and randomly altering the synchronism of the pulse width modu-
lated output phases.
3.11.3 14-1* Mains On/Off
Parameters for configuring mains failure monitoring and handling.
14-12 Function at Mains Imbalance
Option: Function:
Operation under severe main imbalance conditions reduces the lifetime of the motor. Conditions are
considered severe if the motor is operated continuously near nominal load (e.g. a pump or fan
running near full speed).
When a severe mains imbalance is detected:
[0] * Trip Select
Trip
[0] to trip the frequency converter.
[1] Warning Select
Warning
[1] to issue a warning.
[2] Disabled Select
Disabled
[2] for no action.
[3] Derate Select
Derate
[3] for derating the frequency converter.
3.11.4 14-2* Trip Reset
Parameters for configuring auto reset handling, special trip handling and control card self test or initialisation.
14-20 Reset Mode
Select the reset function after tripping. Once reset, the drive can be restarted.
Option: Function:
[0] * Manual reset Select
Manual reset
[0], to perform a reset via [RESET] or via the digital inputs.
[1] Automatic reset x 1 Select
Automatic reset x 1…x20
[1]-[12] to perform between one and twenty automatic resets after
tripping.
[2] Automatic reset x 2
[3] Automatic reset x 3
[4] Automatic reset x 4
[5] Automatic reset x 5
[6] Automatic reset x 6
[7] Automatic reset x 7
[8] Automatic reset x 8
[9] Automatic reset x 9
[10] Automatic reset x 10
[11] Automatic reset x 15
[12] Automatic reset x 20
[13] Infinite Automatic Reset Select
Infinite Automatic Reset
[13] for continuous resetting after tripping.
Application Tip:
If par. 14-20 / 14-21 is set to auto-reset after e.g. 30 Sec. this should be taken in consideration if a relay output is set to call for a service technician in
case of an alarm.
ADAP-KOOL
®
Drive Programming Guide 3 Parameter Description
MG.11.N1.02 - VLT
®
is a registered Danfoss trademark
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