Danfoss VLT AutomationDrive FC 302 Programming Manual page 151

Parameter Descriptions
14-22 Operation Mode
Option: Function:
12 13 18
12 13 18
39 42 50
Illustration 3.59 Test Plugs
Select [2] Initialisation to reset all parameter
values to default settings, except for:
parameter 15-03 Power Up's,
parameter 15-04 Over Temp's, and
parameter 15-05 Over Volt's. The frequency
converter resets during the next power-up.
Parameter 14-22 Operation Mode also returns to
the default setting [0] Normal operation.
[0] Normal
operation
*
[1] Control Remember to set switches S201 (A53) and S202
card test (A54) as specified in the parameter description
when performing a control card test.
Otherwise, the test fails.
[2] Initiali-
sation
[3] Boot mode
14-23 Typecode Setting
Option: Function:
[256] Dummy_dd00113806 For use by service technicians only.
14-24 Trip Delay at Current Limit
Range: Function:
60 s [0 - Enter the current limit trip delay in seconds. When
*
60 s] the output current reaches the current limit
(parameter 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.
MG33MJ02
Programming Guide
19 27 29 32 33 20 37
FC 302
19 27 32 33 20
FC 301
53 54 55
FC 301 &
FC 302
Danfoss A/S © Rev. 10/2014 All rights reserved.
14-25 Trip Delay at Torque Limit
Range: Function:
60 s [0 - Enter the torque limit trip delay in seconds. When
*
60 s] the output torque reaches the torque limits
(parameter 4-16 Torque Limit Motor Mode and
parameter 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.
14-26 Trip Delay at Inverter Fault
Range: Function:
Size [ 0 - 35 When the frequency converter detects
related s] an overvoltage in the set time, trip is
*
effected after the set time.
If value = 0, protection mode is disabled.
NOTICE
It is recommended to disable
protection mode in hoisting
applications.
14-28 Production Settings
Range:
0 [No action]
*
1 [Service reset]
[2] Set Production Mode
14-29 Service Code
Range:
0 [-2147483647 - 2147483647]
*
3.15.4 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
parameter 4-16 Torque Limit Motor Mode and
parameter 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 the frequency 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
Function:
Function:
For internal service only.
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