14-22 Operation Mode
Option: Function:
Select Initialization [2] to reset all parameter
values to default settings, except for
15-03 Power-ups, 15-04 Over Temps, and
15-05 Over Volts. The adjustable frequency drive
will reset during the next power-up.
14-22 Operation Mode will also revert to the
default setting Normal operation [0].
[0]
*
Normal
operation
[1] Control
card test
[2] Initialization
[3] Boot mode
14-24 Trip Delay at Current Limit
Range: Function:
60 s
*
[0 - 60
s]
Enter the current limit trip delay in seconds. When
the output current reaches the current limit
(4-18 Current Limit), a warning is triggered. When
the current limit warning has been continuously
present for the period specified in this parameter,
the adjustable frequency drive trips. Disable the
trip delay by setting the parameter to 60 s = OFF.
Thermal monitoring of the adjustable frequency
drive will still remain active.
14-25 Trip Delay at Torque Limit
Range: Function:
60 s
*
[0 - 60
s]
Enter the torque limit trip delay in seconds. When
the output torque reaches the torque limits
(4-16 Torque Limit Motor Mode and 4-17 Torque
Limit Generator Mode), a warning is triggered.
When the torque limit warning has been contin-
uously present for the period specified in this
parameter, the adjustable frequency drive trips.
Disable the trip delay by setting the parameter to
60 s = OFF. Thermal monitoring of the adjustable
frequency drive will still remain active.
14-26 Trip Delay at Inverter Fault
Range: Function:
Application
dependent
*
[0 - 35
s]
When the adjustable frequency drive
detects an overvoltage in the set time,
tripping will be affected after the set
time.
If value = 0, protection mode is disabled
NOTE!
It is recommended to disable
protection mode in hoisting
applications.
14-29 Service Code
Range: Function:
0
*
[-2147483647 - 2147483647 ] For internal service only.
3.15.4 14-3* Current Limit Ctrl.
The adjustable frequency drive features an integral current
limit controller which is activated when the motor current,
and thus the torque, is higher than the torque limits set in
4-16 Torque Limit Motor Mode and 4-17 Torque Limit Generator
Mode.
When the current limit is reached during motor operation or
regenerative operation, the adjustable frequency drive will
try to reduce torque below the preset torque limits as quickly
as possible without losing control of the motor.
While the current control is active, the adjustable frequency
drive can only be stopped by setting a digital input to Coast
inverse [2] or Coast and reset inv. [3]. Any signal on terminals
18 to 33 will not be active until the adjustable frequency
drive is no longer near the current limit.
By using a digital input set to Coast inverse [2] or Coast and
reset inv. [3], the motor does not use the ramp-down time,
since the adjustable frequency drive is coasted. If a quick
stop is necessary, use the mechanical brake control function
along with an external electro-mechanical brake attached to
the application.
Parameter Descriptions FC 300 Programming Guide
MG.33.MA.22 - VLT
®
is a registered Danfoss trademark 3-123
3
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