Operating instructions

14-22 Operation Mode
Option: Function:
[2] Initialisa-
tion
Select Initialisation [2] to reset all parameter values
to default settings, except for par. 15-03 Power
Up's, par. 15-04 Over Temp's and par. 15-05 Over
Volt's. The frequency converter will reset during
the next power-up.
Par. 14-22 Operation Mode will also revert to the
default setting Normal operation [0].
[3] Boot
mode
14-23 Typecode Setting
Option: Function:
Typecode re-writing. Use this parameter to set the
typecode matching the specific FC.
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
(par. 4-16 Torque Limit Motor Mode and
par. 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 frequency converter monitoring will
still remain active.
14-26 Trip Delay at Inverter Fault
Range: Function:
Application
dependent
*
[0 - 35 s] When the frequency converter
detects an over-voltage in the set
time trip will be effected after the
set time.
14-28 Production Settings
Option: Function:
[0] * No action
[1] Service reset
[2] Set Production Mode
14-29 Service Code
Range: Function:
0 * [-2147483647 - 2147483647 ] Service use only.
3.14.5 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
par. 4-16 Torque Limit Motor Mode and par. 4-17 Torque Limit
Generator Mode.
When the current limit is reached during motor operation or
regenerative operation, the frequency converter 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 frequency converter
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 frequency converter 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 frequency converter is coasted.
14-30 Current Lim Ctrl, Proportional Gain
Range: Function:
100 % * [0 - 500 %] Enter the proportional gain value for the
current limit controller. Selection of a high
value makes the controller react faster. Too
high a setting leads to controller instability.
14-31 Current Lim Ctrl, Integration Time
Range: Function:
0.020 s * [0.002 - 2.000
s]
Controls the current limit control
integration time. Setting it to a lower
value makes it react faster. A setting too
low leads to control instability.
14-32 Current Lim Ctrl, Filter Time
Range: Function:
26.0 ms * [1.0 - 100.0 ms]
3.14.6 14-4*Energy Optimising
Parameters for adjusting the energy optimisation level in both
Variable Torque (VT) and Automatic Energy Optimization
(AEO) mode.
Automatic Energy Optimization is only active if
par. 1-03 Torque Characteristics, is set for either Auto Energy
Optim. Compressor [2] or Auto Energy Optim. VT [3].
14-40 VT Level
Range: Function:
66 % * [40 - 90
%]
Enter the level of motor magnetisation at low
speed. Selection of a low value reduces energy
loss in the motor, but also reduces load capabil-
ity.
This parameter cannot be adjusted while the
motor is running.
Parameter Description
VLT
®
HVAC Drive Programming Guide
MG.11.CA.02 - VLT
®
is a registered Danfoss trademark 105
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