Danfoss VLT AutomationDrive FC 301 Programming Manual page 138

Parameter Descriptions
14-22 Operation Mode
Option:
3 3
[0] Normal
*
operation
[1] Control
card test
[2] Initiali-
sation
[3] Boot mode
For control card test and initialisation (factory reset of all
parameters). Select function, press [OK], and toggle power
to the frequency converter. Note, that the control card test
needs special hardware to be attached to the inputs.
14-23 Typecode Setting
Option:
[256] Dummy_dd00113806 Use this parameter to rewrite the
14-24 Trip Delay at Current Limit
Range:
60 s [0 -
*
60 s]
136
Function:
12 13 18 19 27 29 32 33 20
12 13 18 19 27 32 33 20
39 42 50 53 54 55
FC 301 &
FC 302
Illustration 3.58 Test Plugs
Select [2] Initialisation to reset all parameter
values to default settings, except for
15-03 Power Up's, 15-04 Over Temp's, and
15-05 Over Volt's. The frequency converter
resets during the next power-up.
14-22 Operation Mode also reverts to the
default setting [0] Normal operation.
Function:
frequency converter typecode.
Function:
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 frequency converter trips. To run continuously
in current limit without tripping, set the parameter
to 60 s = Off. Thermal monitoring of the frequency
converter still remains active.
®
VLT AutomationDrive FC 301/302 Programming Guide
14-25 Trip Delay at Torque Limit
Range:
60 s
*
37
60 s]
FC 302
FC 301
14-26 Trip Delay at Inverter Fault
Range:
Size related
14-28 Production Settings
Range:
0
*
1
[2] Set Production Mode
14-29 Service Code
Range:
0 [-2147483647 - 2147483647 ]
*
3.15.5 14-3* Current Limit Control
The frequency converter 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 frequency converter tries 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 frequency converter
can only be stopped by setting a digital input to [2] Coast
inverse or [3] Coast and reset inv. Any signals on terminals
18 to 33 are not active until thefrequency converter is no
longer near the current limit.
By using a digital input set to [2] Coast inverse or [3] Coast
and reset inv., the motor does not use the ramp-down
time, since the frequency converter is coasted. If a quick
stop is necessary, use the mechanical brake control
MG33MH02 - Rev. 2013-09-30
Function:
[0 - 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 continuously present
for the period specified in this parameter, the
frequency converter trips. Disable the trip delay by
setting the parameter to 60 s = Off. Thermal
monitoring of the frequency converter still remains
active.
Function:
[ 0 - When the frequency converter detects an
*
35 s] over-voltage in the set time trip will be
effected after the set time.
If value = 0, protection mode is disabled
NOTICE
It is recommended to disable
protection mode in hoisting
applications.
[No action]
[Service reset]
Function:
For internal service only.
Function: