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
18–33 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 along with an external electro-mechanical brake
attached to the application.
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 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:
5 ms
*
[1 - 100 ms] Sets a time constant for the current limit
controller low-pass filter.
4.13.5 14-4* Energy Optimising
Parameters for adjusting the energy optimisation level in
both variable torque (VT) and automatic energy optimi-
sation (AEO) mode in
parameter 1-03 Torque Characteristics
.
14-40 VT Level
Range:
Function:
66 %
*
[40 -
90 %]
NOTICE
This parameter cannot be adjusted while
the motor is running.
NOTICE
This parameter is not active when
parameter 1-10 Motor Construction
is set to
options that enable PM motor mode.
Enter the level of motor magnetisation at low
speed. Selection of a low value reduces energy
loss in the motor, but also reduces load
capability.
14-41 AEO Minimum Magnetisation
Range:
Function:
66 %
*
[40 -
75 %]
Enter the minimum allowable magnetisation
for AEO. Selection of a low value reduces
energy loss in the motor, but can also
reduce resistance to sudden load changes.
14-44 d-axis current optimization for IPM
Range:
Function:
100
%
*
[0 -
200 %]
This parameter is available only when
parameter 1-10 Motor Construction
is set to
[2]
PM, salient IPM, non Sat
.
Normally VVC
+
PM control automatically
optimises d-axis demagnetising current based on
d-axis and q-axis settings. When
parameter 1-10 Motor Construction
is set to
[2]
PM, salient IPM, non Sat
, use this parameter to
compensate the saturation effect at high load. In
most cases, decreasing this value can improves
the efficiency. However, 0% means no optimi-
sation and the d-axis current is zero (not
recommended).
4.13.6 14-5* Environment
NOTICE
Perform a power cycle after changing any of the
parameters in group
chapter 4.13.6 14-5* Environment
These parameters help the frequency converter to operate
under special environmental conditions.
14-50 RFI Filter
Option:
Function:
[0]
Off
[1]
On
[2]
*
Grid Type
14-51 DC-Link Voltage Compensation
Option:
Function:
[0]
Off
Disables DC-link compensation.
[1]
*
On
Enables DC-link compensation.
14-52 Fan Control
This feature is only available in frequency converters from 11 to
75 kW.
Option:
Function:
[5]
*
Constant-on mode
[6]
Constant-off mode
[7]
On-when-Inverter-is-on-else-off Mode
[8]
Variable-speed mode
Parameter Descriptions
VLT
®
AutomationDrive FC 360
98
Danfoss A/S © 7/2015 All rights reserved.
MG06C602
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