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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.
2.13.4 14-2* Trip Reset
Parameters for configuring auto reset handling, special trip handling and control card self test or initialisation.
14-20 Reset Mode
Option:
Function:
[0]
Manual reset
[1]
Automatic reset x 1
[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 the reset function after tripping. Once reset, the frequency converter can be restarted.
Select
Manual reset
[0], to perform a reset via [RESET] or via the digital inputs.
Select
Automatic reset x 1…x20
[1]-[12] to perform between one and twenty automatic resets after
tripping.
Select
Infinite Automatic Reset
[13] for continuous resetting after tripping.
NB!
The motor may start without warning. If the specified number of AUTOMATIC
RESETs is reached within 10 minutes, the frequency converter enters Manual
reset [0] mode. After the Manual reset is performed, the setting of par. 14-20
reverts to the original selection. If the number of automatic resets is not reached
within 10 minutes, or when a Manual reset is performed, the internal AUTOMATIC
RESET counter returns to zero.
14-21 Automatic Restart Time
Range:
Function:
10 s*
[0 - 600 s]
Enter the time interval from trip to start of the automatic reset function. This parameter is active
when par. 14-20
Reset Mode
is set to
Automatic reset
[1] - [13].
VLT
®
AQUA Drive Programming Guide
2 Parameter Description
MG.20.O4.02 - VLT
®
is a registered Danfoss trademark
137
2